1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
Weather balloons are often used to make measurements in which "sphere" A.Biosphere B.Exosphere C.Geosphere D.Cryosphere E.Atmosp
Ivahew [28]
I think it would be E.

3 0
3 years ago
in which terrestrial biome can you find tress that produce cones instead of flowers and needles instead of leaves?
mezya [45]

Answer:

I think coniferous forest is the answer

6 0
3 years ago
Give at least three facts autotrophs and heterotrophs on earth are true?
White raven [17]

Answer:

  • Autotrophs are usually defined as those that can prepare their own food by carrying out the process of photosynthesis, but heterotrophs cannot prepare their own food and are directly dependent on the autotrophs for food. Examples of autotrophs are plants and trees, and examples of heterotrophs are animals and human beings.
  • Autotrophs are the lowest organisms in the trophic level, where they produce the food for the consumers (heterotrophs). On the other hand, the heterotrophs lie above the autotrophs and when they consume their food, they obtain only 10% of the energy, and the remaining energy is released into the environment.
  • Autotrophs can make organic substances by the use of inorganic molecules, but heterotrophs cannot make these substances. They are only dependent on the molecules prepared by these autotrophs.

Thus, these are three of the facts regarding autotrophs and heterotrophs existing on earth that are true.

4 0
3 years ago
Design an experiment to find a temperature at which a meat tenderizer works the best
marysya [2.9K]
In order to determine this, we will require some pieces of meat, preferably taken from the same animal and from the same area and of similar size. After the pieces of meat are obtained, they are sealed in a container with equal quantities of meat tenderizer. Then, keep the containers in different temperatures.
After fixed time intervals, say 3 hours, record the appearance and texture of the meat. Repeat this until readings for 5-6 time intervals have been obtained.
3 0
3 years ago
Covalent or ionic: transfer of electrons<br> covalent or ionic: sharing of electrons
belka [17]

When two atoms react, they form either of two kinds of bond, ionic bonds or covalent bonds.

Ionic bonds are the type of bonds where there is transfer of electrons from one atom to another.  The electrons are removed and from one atom and attached to  another. A good example is salt which is composed of sodium and chlorine. Sodium readily loses one of its electrons and chlorine readily accepts it. Before losing the electron, sodium has a positive charge, but then becomes negatively charged after giving up the electron. Chlorine has a positive charge before gaining the electron but becomes negatively charged after gaining the electron. These opposite charges between sodium and chlorine attract the two elements together to form the ionic bond.

Covalent bonds are the kind of bonds formed when two atoms share electrons. Here there is sharing, none of the atoms loses an electron and none gains. A good example is water which is formed when oxygen  shares two electrons, each with an atom of hydrogen.

 The Oxygen atom forms two covalent bonds with the pair of hydrogen atoms.

6 0
3 years ago
Other questions:
  • a scientist has discovered a new plant species in the amazon rainforest. she tells her fellow scientists that the plant she has
    6·1 answer
  • Is a girl eating noodles a consumer or producer
    12·1 answer
  • Match the type of protein structure to its correct description.a. Primaryb. secondaryc. tertiaryd. quatenaryHere is the list of
    13·1 answer
  • Why is it important that egg and sperm only have on set of chromosomes?
    12·1 answer
  • Which would most affect the health of fish in a local pond?
    11·1 answer
  • PLEASE HELP FAST
    11·1 answer
  • CUAL ES MEJOR<br><br><br><br><br><br>REY JULIEN<br><br>O EL MAMON DE STEVEN UNIVERSE :D
    9·1 answer
  • Helpppp meeeeee plssssss
    5·1 answer
  • A/An ___ is an acute, life-threatening condition with hemorrhage into a vessel wall resulting from a longitudinal tearing of the
    12·1 answer
  • What is the second phase of Meosis l
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!