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crimeas [40]
3 years ago
5

What determines which electron donor and electron acceptor a given microbe uses in its anaerobic ETS? Choose one: A. Microbes us

e the most common donor available for their donor; the only acceptor that works with the ETS is oxygen. B. The available donors and acceptors will induce gene expression of their redox enzymes, thereby allowing their use. C. Each bacterium can only use one donor and one acceptor in their ETS. D. Microbes use the most common donors and acceptors available.
Biology
1 answer:
faltersainse [42]3 years ago
7 0

Answer:

B. The available donors and acceptors will induce gene expression of their redox enzymes, thereby allowing their use

Explanation:

Electron transport chain is the important stage of cellular respiration where the electron is donated by certain redox molecules.

The ETC takes place in both the aerobic and anaerobic type of respiration wherein the aerobic respiration, oxygen is used as the electron acceptor whereas in the anaerobic respiration some other molecules like sulfate and nitrate are used.

In anaerobic respiration, the type of electron donors and the donor-acceptor molecules determine the fate of the chain as these molecules act as an inducer of the genes of redox enzymes and the genes for the enzymes are expressed.

Thus, Option-B is correct.

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Answer:

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Explanation:

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4 0
2 years ago
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Which of the following is true of the composition of all materials?
otez555 [7]

Answer:

Which of the following is true of the composition of all materials?

All materials are made up of smaller parts that cannot be seen without magnification

Explanation:

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3 years ago
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nignag [31]

Answer:

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Explanation:

The earth is composed of three main layers: Crust, Mantle and Core. The density or mass per unit volume of the earth's layers increases as one moves from the surface towards the interior of the earth known as the core. Also, there is an increase in pressure and temperature as depth increases. There are three main sources of heat in the earth's core: (1) conserved heat from when the planet formed and coalesced, (2) heat due to friction caused by denser core material sinking to the center of the planet, and (3) heat from the decay of radioactive elements.

The earth's core is composed almost entirely of the metals, iron and nickel. The core has an inner solid layer and a molten outer core. Iron and nickel are both very dense metals, so the core of the earth is very dense and the density increases with depth with the inner core being the most dense layer of the earth.

7 0
3 years ago
What is this an example of?<br> O adaptation<br> O biodiversity<br> O isolation<br> O variation
Mashutka [201]

Explanation:

1] ADAPTATION : WE HAVE BEEN ADAPTING A DOG AS A PET.

2] BIODIVERSITY : BIODIVERSITY IS THE VARIABILITY AMONG LIVING ORGANISMS FROM ALL SOURCES INCLUDING TERRESTRIAL, MARINE, AND OTHER AQUATIC ANIMALS

3] ISOLATION : THE PROCESS OR FACT OF ISOLATING OR BEING ISOLATED

4] VARIATION : DIFFERENCE BETWEEN ORGANISMS OR PLANTS

SO, THIS IS YOUR ANSWER

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3 years ago
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I need help with the hole thing!
Tcecarenko [31]
Post the entire document please so i can find the answers to the entire thing.
6 0
3 years ago
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