According to our class discussion, some molecules are transported into bacteria by a simple transport system. The energy source for this transport is______________________ . In terms of molecules transported by the system, ________________________-(group names only) can be transported by this system.
Answers
Some molecules are transported into bacteria by a simple transport system. The energy source for this transport is proton motive force. In terms of molecules transported by the system, sugars, amino acids, and organic acids can be transported by this system.
The simple transport system, also referred to as the proton motive force (PMF), is an energy source that bacteria use to transport molecules. Simple transport systems use the PMF to move substances across the membrane, such as sugars, amino acids, and organic acids.These transporters, which are frequently permeases, are composed of only one protein and transport molecules in a concentration-dependent manner. Energy is supplied by the electrochemical gradient of protons, which is created by electron transport. As the protons are translocated, the PMF is established.
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Related Questions
There is an increasing demand for berries in Paul’s town. He wants to cultivate berries to earn profits. To do so, he wants to check whether the soil in his farm is suitable for cultivating berries. Which characteristic of soil will most accurately check the suitability of land for growing berries?
Answers
Soil pH level characteristic of soil will most accurately check the suitability of land for growing berries
The soil pH level is the most important characteristic to check the suitability of land for growing berries. Berries generally thrive in slightly acidic soil with a pH level between 5.5 and 6.5. If the soil pH level is too high or too low, it can lead to nutrient deficiencies, poor plant growth, and low yields. Therefore, it is crucial to test the soil's pH level before planting berries to ensure the best growing conditions and maximum profits. Other characteristics such as soil texture, drainage, and nutrient content also play a significant role in berry cultivation but the soil pH level is the most critical factor to consider.
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Which of the following statements is accurate with regard to a phylogeny, as represented by a phylogenetic tree? Members of the same clade likely share many derived characters.
Answers
A. Branches that descend from the same node most usually have numerous derived characters in common with regard to a phylogeny. Convergent traits can be used to appropriately base a monophyletic group. All of the derived traits of the descendent species are frequently present in the ancestor group.
A phylogenetic tree is a visual representation of the evolutionary connections between various creatures. Phylogenetic trees are theories rather than proven truths. A phylogenetic tree's branching pattern illustrates how many species or other groups developed from a number of common predecessors. The relationship between two species in a phylogenetic tree has a very clear significance.
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Question- Which of the following statements is accurate with regard to a phylogeny, as represented by a phylogenetic tree? Members of the same clade likely share many derived characters.
A) Descendant groups (branches) from the same node likely share many derived characters. B) A monophyletic group can be properly based on convergent features. C) The ancestral group often has all the derived characteristics of the descendant species.
1) As the body's chemical messengers, _____________________ transfer information and instructions from one set of cells to another.
2) A _______________ is a group of cells that produces and secretes, or gives off, chemicals.
3) Hormones are released into the bloodstream via small tubes called_________________.
4) Hormones find their way through the blood to their ___________________ cells.
5) Each hormone is a differently shaped key that will only fit into the correct __________________ lock.
Answers
Answer:
1) As the body's chemical messengers, hormones transfer information and instructions from one set of cells to another.
2) A gland is a group of cells that produces and secretes, or gives off, chemicals.
3) Hormones are released into the bloodstream via small tubes called duct.
4) Hormones find their way through the blood to their targeted/respective cells.
5) Each hormone is a differently shaped key that will only fit into the correct receptor lock.
Investigator Murray is examining evidence from an old crime scene. She has a blood sample, but she believes that the sample may be too degraded to get DNA from. Investigator Murray decides to try to retrieve mtDNA from the sample and compare it to a sample from her suspect. What information could this sample give her?
A The blood at the crime scene belonged to her suspect.
B The suspect has blond hair and blue eyes.
C There is a maternal relation between the two people.
D The person from the crime scene has been near the suspect.
Answers
The answer is C.
Explanation:
They explained that "Investigator Murray decides to try to retrieve mtDNA from the sample and compare it to a sample from her suspect. What information could this sample give her?"
mtDNA: Mitochondrial DNA (mtDNA) can also be useful to investigators and is found in the energy-producing organelles called mitochondria. This type of DNA can sometimes be recovered from evidence that is too degraded or old to yield regular DNA. Although mtDNA can't be linked to one individual, it can show that subjects are maternally related, since it is passed down through the maternal side of the family.
Note to you:I took the test and the definition of mtDNA (also known as Mitochondrial DNA) came from my notes. Have a good one and I hope it helps!! :)
I need help please answers this!!!
Answers
Answer:
I think the answer is B
Explanation:
Think about it, most people buy stuff without looking at the nutritional facts. That's very important when trying to buy healthy food. I might be wrong and if I am I'm terribly sorry
A culture of Escherichia coli has a doubling time of 20 minutes in a defined
medium and is prepared to an initial cell concentration of 0.5 x 10' cells/mL in in that medium.
(1) Calulate the cell density after a 3.5 hours incubation period.
[2]
(ii) Calculate the number of generations that the cells have multiplied during the incubation period.
[2]
An activated sludge treatment plant operator requests that you estimate the
sludge yield (yield of synthesised cells) from a waste stream comprising
predominantly glucose.
(1) Determine the complete balanced reaction for microbial synthesis when glucose (C6H12O6) is the electron donor, oxygen (O2) is the electron acceptor and nitrite (NO2) is the nitrogen source for cell synthesis. Assume that fo-0.3.
Answers
Final cell density (Nt) = Initial cell density (No) x 2^(t/g) where t = time of incubation, g = generation time.given No = 0.5 x 10^6 cells/mL, t = 3.5 hours = 210 minutes g = 20 minutes.
So, Nt = No x 2^(t/g)Nt = 0.5 x 10^6 x 2^(210/20)Nt = 0.5 x 10^6 x 2^10.5Nt = 16 x 10^6 cells/mL.
Therefore, the cell density after 3.5 hours incubation period is 16 x 10^6 cells/mL.
To calculate the number of generations (n), we can use the following formula:n = t/given where, t = time of incubation, given = generation time.
For the given problem, t = 3.5 hours = 210 minutesgiven = 20 minutesn = t/givenn = 210/20n = 10.5.
Therefore, the cells multiplied for 10.5 generations during the incubation period.
The complete balanced reaction for microbial synthesis, when glucose (C6H12O6) is the electron donor, oxygen (O2), is the electron acceptor, and nitrite (NO2) is the nitrogen source for cell synthesis is:
6CO2 + 6H2O + C6H12O6 → 6O2 + C5H7NO2 + 2NH3.
This is the complete balanced reaction for microbial synthesis when glucose (C6H12O6) is the electron donor, oxygen (O2) is the electron acceptor, and nitrite (NO2) is the nitrogen source for cell synthesis.
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Explain why the melanic form is more abundant today than in the early part of the 19th century peppered moth
Answers
The melanic form is more abundant today than in the early part of the 19th century peppered moth because of the changes in the gene that has been caused by the complex verifiable and geological changes in territory and nature.
Moth species frequently have melanic variations at low recurrence beyond modern areas.
What are Melanic form?
Melanic structures are the practically uniform dark Carbon aria and a few middle aggregates (Insulair).
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8
Organisms evolve due to changes in their DNA called
A
growing
B cellular respiration
mutations
D
recombination
Answers
Answer:
Mutaciones
Explanation:
Los cambios genéticos incluyen mutaciones causados por errores en la replicación del ADN de un organismo
Answer:
b cellular respiration
Which of the following motions causes day and night?
A. the sun's movement in the
sky
B. Earth's revolution around the sun
C. Earth's movement in space
D. Earth's rotation on its axis
Answers
Answer:
B
Explanation:
Earth rotates on its axis; this causes us to experience day and night.
Which of the following would most likely happen if the ATP synthesis in the mitochondria of a plant's cells suddenly operated poorly? (2 points)
Answers
If the ATP synthesis in the mitochondria of a plant's cells suddenly operated poorly, it would most likely lead to a decrease in energy levels, and the plant may begin to die.
ATP is an essential molecule for life processes, and its primary function is to store and transfer energy within cells.
Mitochondria are organelles responsible for producing ATP through a process called oxidative phosphorylation. If the process of ATP synthesis in mitochondria does not operate correctly, the cell would not be able to generate enough ATP to meet its energy demands.
As a result, the plant would likely experience a decrease in energy levels, which would affect its ability to carry out essential life processes, such as growth, development, and reproduction. The plant may also become more susceptible to disease and environmental stressors, which would further exacerbate its energy problems. So, if ATP synthesis in the mitochondria of a plant's cells suddenly operated poorly, it would most likely lead to a decrease in the energy levels of the cell, and the plant may begin to die.
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What is a geographic barrier?
Answers
a naturally occurring development or body of water that divides and detaches one area from others.
Is the space between the bottom of the objective lens and the surface of the slide.
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WORKING DISTANCE is space between the bottom of objective the lens and the surface of the slide.
The distance between front edge of the objective and the lens and the specimen surface ("with the surface of the cover glass in case of the cover glass objective lens") when the specimen is also focused.
The working distance (W.D.) which is determined by the linear measurement of the objective and front lens to the focal plane. In the general, the objective of the working distance decreases by the magnification and the numerical aperture of both increase. The working distance is the distance and from the front of the lens to be the focal plane
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Which two statements best explain a relationship between these structures?
A. The chromosome is made up of several DNA strands that have embedded proteins.
B. The chromosome is made up of tightly wound genes that are made up of DNA molecules.
C. The gene has nucleotides that code for several proteins that make up the DNA molecule.
D. The genetic code specific for a protein is carried in the genes that make up the DNA molecule.
E: The nucleus contains the chromosomes, which have the genetic code and are sent to the DNA molecule.
F. The DNA molecule is made up of nucleotides, and the gene is a section of DNA that contains nucleotides that code for a specific protein.
Answers
The DNA molecule and the gene are closely related structures.
When answering questions on the Brainly platform, it is important to always be factually accurate, professional, and friendly. Answers should be concise and provide relevant information to the question being asked. Typos and irrelevant parts of the question should be ignored.
In response to the student question, the two statements that best explain a relationship between these structures are:B. The chromosome is made up of tightly wound genes that are made up of DNA molecules.F.
The DNA molecule is made up of nucleotides, and the gene is a section of DNA that contains nucleotides that code for a specific protein.The chromosome is a structure in the nucleus that carries genetic information.
It is made up of tightly wound DNA molecules that are packaged around proteins called histones. These DNA molecules are divided into segments called genes, which contain the instructions for making proteins.
Genes are composed of nucleotides, which are the building blocks of DNA molecules. The genetic code for a specific protein is carried in the sequence of nucleotides in a gene.
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____ are the regions where growth is initiated by the proliferation of cells.
Answers
Answer:
1. I’m not sure if the question is to finish the sentence. But I will give you the answer to the question if thats what you are asking.
Explanation:
Proliferation is a physiological process of cell division that occurs in almost all tissues, resulting in an increase of the number of cells. Mitosis is the main way for eukaryotes to divide cells, such as multicellular organisms in a mitotic way to increase the number of somatic cells.
Most phenotypic traits—features of the organism that we can observe—are not easy to put into a Punnet Square. Give at least two reasons, or factors, that make most phenotypic traits complicated. How, then, can we measure these traits?
Answers
Most phenotypic traits are complex due to polygenic inheritance and environmental influences.
Phenotypic traits often result from the combined effects of multiple genes (polygenic inheritance) and can be influenced by environmental factors. Punnett Squares, which illustrate single gene pair inheritance, are not suitable for capturing the complexity of such traits. Additionally, environmental factors can interact with genetic factors, leading to variations in trait expression.
To measure complex phenotypic traits, alternative approaches are used. Quantitative measurements, such as height or weight, provide precise numerical values. Statistical analysis helps identify patterns, correlations, and heritability estimates in populations. It involves studying large sample sizes and employing statistical models to understand the contributions of genetic and environmental factors. Molecular genetics advancements have further enhanced our ability to study complex traits at the genetic level.
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25 POINTS ‼️
A biologist wants to classify protein secretions Into groups based on the principal function of the protein. Which cell would the biologist select to study and why?
A-The cell on the left, because it has genetic information organized into chromosome
B-The cell on the left, because it has organelles that secrete proteins.
C-The cell on the right, because it has free proteins throughout its cytoplasm .
D-The cell on the right, because it has a flagellum that enables movement .
Answers
Answer:
meiosis because the cell is separating ... C. Correct - The cell is in telophase, which can be seen ... B. Mitosis occurs only in eukaryotic cells. C. Meiosis is used in the repair of an ... when chromosomes would most likely fail to ... genetic information is store. ... For this reason, most of its proteins are able to function in acidic.
Explanation:
Answer:
C
Explanation:
Suu Aug
why adaptation is important for human beings
Answers
Explanation:
Their adaptations are the reason why you find populations nearly in all areas on earth. Without these adaptations, the world population would not be as widespread as it is today.
: Cytotoxic T cells are rapid killers of infected target cells. Within minutes of the interaction of a cytotoxic T cell with a target cell, the program of apoptosis in the target cell is initiated. This rapid activity is a consequence of:
Answers
Cytotoxic T cells are rapid killers of infected target cells. Within minutes of the interaction of a cytotoxic T cell with a target cell, the program of apoptosis in the target cell is initiated. This rapid activity is a consequence of The extremely rapid production of granzymes and perforin by cytotoxic effector cells upon encountering a target cell.
A type of T cell known as a cytotoxic T cell (CD8+ T cell) is in charge of removing things that the immune system recognizes as dangerous. Cytotoxic T cells are essential for controlling bacterial growth and illnesses in the body.By instructing their targets to undergo apoptosis, cytotoxic T lymphocytes kill their prey. Cytotoxic T cells can instruct antigen-specific target cells to die within 5 minutes of coming into contact with them when they are mixed with target cells and quickly brought into contact by centrifugation.The speed with which cytotoxic T cells can induce apoptosis in their targets is due to the release of prepared effector molecules that trigger the target cell's own endogenous apoptotic pathway.learn more about Cytotoxic T cells here: https://brainly.com/question/9292555
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Genetic engineering has both positive and negative outcomes. One of the most common areas where genetic engineering is used is in agriculture. If farmers plant more genetically modified crops, which of the following negative outcomes could occur?
A. An increase in the use of pesticides
B. A decrease in genetic diversity of the crops
C. An increase in the contamination of the water supply
D. A decrease in crop productivity
Answers
An increase in the use of pesticides, decrease in genetic diversity of the crops, and an increase in the contamination of the water supply are the negative outcomes of using genetically modified crops by the farmers. The correct option is A, B and C.
Thus, an increase in the use of pesticides is a negative outcome if farmers plant more genetically modified crops because it leads to farmers rely on pesticides for the crops that are not genetically resistant to certain pests.
A decrease in genetic diversity of the crops as farmers plant only a few types of genetically modified crops. This leads to a reduction in genetic diversity. However, some genetically modified crops are herbicide resistant, which results in farmers using more herbicides to control weeds. The increase in use of herbicide ends up in the water supply causing water contamination.
Thus, the ideal selection is option A, option B, and option C.
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what is produced when metals react with dilute acids?
Answers
Answer:magnesium
Explanation:
Answer:
what what
Explanation:
how how how how
Which of the following placements for citrus crops will be most likely to avoid frost damage?
A: North-facing high foothill
B: North-facing valley bottom
C: South-facing high foothill
D: South-facing hilltop
Answers
Answer:
D, south-facing hilltop
Explanation:
can
u answer questions 1-3, and write 4-5 sentces for each question
Walid Elkhatib, an Arab American, bought a Dunkin' Donuts franchise in Illinois. Ten years later, Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises.
Answers
The situation presented is that Walid Elkhatib, an Arab American, bought a Dunkin' Donuts franchise in Illinois. This is the central fact mentioned The situation states that Walid Elkhatib, who is an Arab American, purchased a Dunkin' Donuts franchise in Illinois.
The new development introduced is that Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises. This development is related to the breakfast menu expansion states that Dunkin' Donuts started providing breakfast sandwiches with options like bacon, ham, or sausage in its franchises. This information is introduced, highlighting the specific menu expansion.
Walid Elkhatib, an Arab American, purchased a Dunkin' Donuts franchise in Illinois. Dunkin' Donuts began offering breakfast sandwiches with bacon, ham, or sausage through its franchises The given situation includes Walid Elkhatib, an Arab American, who acquired a Dunkin' Donuts franchise in Illinois.
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Viruses attack and destroy which of the following
(A) cells
(B) mutations
(C) vaccines
(D) pasteurization
Answers
Answer:
Cells
Explanation:
Viruses attack the body's cells in order to weaken the body ._.
What do aerobic respiration and anaerobic respiration have in common?
• Both begin with glycolysis.
• Both occur in mitochondria.
• Both require oxygen to proceed.
• Both end with the electron transport chain.
Answers
Answer:
Both occur in mitochondria
Explanation:
Respiration occurs in the power house called mitochondria
No matter whether aerobic or anaerobic respiration, they both generate 4ATP and consumed 2 ATP during glycolysis + NADH.
The difference is that under aerobic respiration, pyruvate can enter the mitochondrial matrix following the aerobic respiration pathway whereas, without the supply of O2, anaerobic respiration takes place and forms different products in accordance to which type of organisms they are (I.e. In plants we will have CO2 and ethanol where in human we have lactic acid)
Which of the following is correct about the polyadenylation mechanism?
Answers
Answer:
a long chain of adenine nucleotides is added to the 3' end of mRNA during termination of transcription
Explanation:
You are presented with several single-celled organisms, including one thought to belong to the kingdom fungi. what unique feature could help you identify the fungus?
Answers
One unique feature that could help identify the fungus is the presence of chitin in its cell walls
Chitin is a complex polymer found in the cell walls of fungus that is not found in the cell walls of other single-celled organisms such as bacteria or protists. Furthermore, because fungi are heterotrophic creatures that absorb nutrients from their surroundings, they may be distinguished by their mode of feeding. Fungi have a unique way of reproduction that involves the formation of spores that may be distributed in the environment. Seeing any of these distinguishing characteristics may aid in identifying the organism as a fungus.
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Analyze the data about nitrogenous base content of DNA from various species. Percentages of Bases in Five Organisms Source of DNA A T G C Streptococcus 29. 8 31. 6 20. 5 18. 0 Yeast 31. 3 32. 9 18. 7 17. 1 Herring 27. 8 27. 5 22. 2 22. 6 Human 30. 9 29. 4 19. 9 19. 8 E. Coli 24. 7 23. 6 26. 0 25. 7 Which of these statements are supported by the data? Select all that apply. A. In any one species, the amount of adenine closely approximates that of thymine. B. In any one species, the amount of guanine closely approximates that of cytosine. C. The amounts of A, T, G, and C in DNA is constant across species. D. The amounts of A, T, G, and C in DNA varies from species to species
Answers
Option C. The amounts of A, T, G, and C in DNA is constant across species, is the statement supported by the data about nitrogenous bases.
The portion of the nucleotides' structure that is in charge of the variety that all types of organisms exhibit is nitrous base. Adenine, thymine, cytosine, and guanine are the four distinct nitrogenous bases that make up each of the four nucleotides that make up DNA.
The amount of A, T, G, and C in DNA can be claimed to be constant among species based on the information that can be gleaned from the data. It is illustrated as follows:
Streptococcus: 29.8+31.6+20.5+18.0 = 99.9
Yeast: 31.3+32.9+18.7+17.1 = 100
Herring: 27.8+27.5+22.2+22.6 = 100.1
E. coli = 24.7+23.6+26.0+25.7 = 100
On rounding off, 99.9 and 100.1 can also be expressed as 100. Therefore, we can say that all these species contain constant number of nitrogenous bases.
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Correct question is:
Analyze the data about nitrogenous base content of DNA from various species. Percentages of Bases in Five Organisms Source of DNA A T G C Streptococcus 29.8 31.6 20.5 18.0 Yeast 31.3 32.9 18.7 17.1 Herring 27.8 27.5 22.2 22.6 Human 30.9 29.4 19.9 19.8 E. Coli 24.7 23.6 26.0 25.7 Which of these statements are supported by the data? Select all that apply. A. In any one species, the amount of adenine closely approximates that of thymine. B. In any one species, the amount of guanine closely approximates that of cytosine. C. The amounts of A, T, G, and C in DNA is constant across species. D. The amounts of A, T, G, and C in DNA varies from species to species.
Compare marshes, swamps, and bogs.
Answers
Answer:
Marshes: Have extremely good ability to support grasses, reeds, flowers, and insects due to their high nutrient soil. They usually are around lakes/rivers/and other bodies of water. They are frequently covered in water however not always covered in water.
Swamps: Have extremely good ability to support wood like plants, trees. They are also permanently covered/submerged in water all year around.
Bogs: Basically they are a gravesite of a dead plant life. When a lake fails to support itself it turns into a bog, its plant life dies off and will start rising to the top creating almost a film. However even though the plant life dies the insects, reptiles, and Amphibians thrive.
Explanation:
Hope this helps!
what is energy dense?
Answers
Answer:
lt is the amount of energy in a paticular weight of food and depending on food's mix of nutrients , ranges from 0 to 9 kcal/g
In the female human reproductive system, eggs are created in an ovary, and implanted in the uterus. For the embryo to grow, it must receive nutrients and oxygen. This problem is solved through an organ called the A. Amniotic sac B. Placenta C. Uterus D. Umbilical cord
Answers
Answer:
The correct answer is D. Umbilical cord
Explanation:
The umbilical cord connects the fetus to the placenta and through it exchanges nutritional substances as well as oxygen-rich blood. The umbilical cord is maintained throughout gestation until the moment of birth, when it is cut and leaves a permanent scar, the navel. The umbilical cord is responsible for breathing and feeding the fetus until the moment it is born, so any failure or blockage in the circulation of oxygen and nutrients through the cord can lead to injury or even death of the embryo. It also serves to remove waste and carbon dioxide (CO2).