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iren2701 [21]
3 years ago
8

Can somebody please help me?

Biology
1 answer:
Molodets [167]3 years ago
4 0
I would say the 1st one is C & the 2nd one is B
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A bacterial culture is being tested for its ability to reduce nitrate. After incubation and growth of the bacteria in nitrate br
skelet666 [1.2K]

Answer:

All this combination of reactions is summarized in that the bacteria reduced nitrate, that is, they added protons to said compound, giving nitrite as a product.

By promoting the appearance of nitrite and that it increases in its concentrations when the zinc dust is thrown away, it becomes reddish since there was a change in pH, that is, the medium was acidified.

Explanation:

Some bacteria take nitrate as a source and end up generating an oxide reduction reaction that gives nitrite as a product, if this reaction advances in a chain, that is, the nitrite is reduced after the nitrate, the product in the future would be ammonia

8 0
3 years ago
What two things must an organism be successful at in order to pass on its genes? choosing and selecting surviving and choosing s
GrogVix [38]
It must be successful at reproducing and surviving
4 0
3 years ago
Ouabain is a specific inhibitor of the active transport of sodium ions out of the cell and is therefore a valuable tool in studi
Kay [80]

Answer:

1. Part A: No

2. Part B: Yes

3: Part C : Yes

4: Part D : No

Explanation:

1) Part A: Facilitated diffusion of glucose into a muscle cell:

No; sodium ion co - transport is required for active transport of glucose but not for facilitated diffusion of glucose

2) Part B: Active transport of dietary phenylalanine across the intestinal mucosa:

Yes; co - transport of sodium ions drives the inward movement of amino acids and can only occur if sodium ions are actively pumped back out again.

3) Part C: Uptake of potassium ions by red blood cells:

Yes; uptake of potassium ions can occur only via a pump that couples the inward pumping of potassium ions to the outward pumping of sodium ions.

4) Part D: Active uptake of lactose by the bacteria in your intestine

No; active uptake of sugars and amino acids in bacteria is driven by a proton gradient.

3 0
3 years ago
Use biome in a sentence
garik1379 [7]
Plants such as the cactus reside in the desert biome.
8 0
3 years ago
Read 2 more answers
____ _____ is ONE TYPE of habitat destruction. This means we’re not completely destroying habitat, but we’re breaking it up into
mafiozo [28]

Answer:

B. Habitat

Explanation:

Habitat destruction is the process by which natural habitat is damaged or destroyed to such an extent that it no longer is capable of supporting the species and ecological communities that naturally occur there. It often results in the extinction of species and, as a result, the loss of biodiversity.

7 0
3 years ago
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