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trapecia [35]
2 years ago
11

Methanogens are able to live in anaerobic conditions. a. True b. False

Biology
2 answers:
Brrunno [24]2 years ago
8 0

ANSWER: The answer is true

Darina [25.2K]2 years ago
6 0

Answer:

True

Explanation:

Methanogens are prokaryotic microbes that produce methane as a by-product of metabolism in anoxic or anaerobic conditions. They are commonly found in the gastro-intestinal parts of ruminants, Marine sediments, and wetlands etc. They are responsible for the methane content released when cows burp/belch and the marsh gas of the wetlands.

Methanogens are strictly anaerobic (they thrive best in a no-oxygen condition) and play a vital ecological role by using up excess hydrogen as an energy source and other products of fermentation released during anaerobic respiration. Due to this, methanogens thrive in an environment which has all electron acceptors e.g. Oxygen, Sulphate, Nitrate etc. removed. This excludes CO2 because methanogens use CO2 as their carbon source.

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The light reactions require the cooperation of 2 photosystems to power linear electron flow from h2o to NADP+.?
Iteru [2.4K]

Answer:

Only Photosystem I  - 1, 5, 6

Only photosystem II - 3, 2

Both Photosystem I and II   - 4

Explanation:

Only Photosystem I  

a) Reduction of NADP+ -  uses light energy to convert NADP+ to NADPH2

b)  Reduction of electron transport chain between the two photosystems

c) Oxidation of electron transport chain between the two photosystems.

Only photosystem II

a)  Oxidation of water - here the absorbed light energy is used to dissociate of water molecules to produces protons (H+) and O2 along with free ions

b)Reduction of primary electron acceptor - An electron is taken by pheophytin which is a primary electron acceptor molecule that is  located within photosystem II and hence it get reduced.

Both Photosystem I and II  

a) Light is absorbed in both photosystem I and II. While in photosystem I, light waves of large wavelength i.e 700 nm are absorbed, in photosystem II light waves of short wavelength of i.e 680 nm are absorbed.

7 0
2 years ago
Complete the T-chart by categorizing each environmental factor as something that would most likely increase or decrease genetic
Annette [7]

Answer: 1. Decrease 2. Decrease 3. Both 4. Both 5. Decrease 6. Increase

Explanation: I got it right hopefully it helps

8 0
1 year ago
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A student is useing a terrarium like the one shown here to study the cycling of oxygen which observation would be the best evide
Gwar [14]

Answer:

The observation of studying the composition of the oxygen and the other chemical that is getting cycled.

Explanation:

If the student tests their hypothesis and collects the data.

6 0
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How is a warm front different from a cold front?
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Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. Warm fronts move more slowly than cold fronts because it is more difficult for the warm air to push the cold, dense air across the Earth's surface.
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