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gizmo_the_mogwai [7]
4 years ago
12

Which is a tough and rigid layer that surrounds plant cells, as well as some algal and bacterial cells?

Biology
2 answers:
Inessa05 [86]4 years ago
8 0

Answer:

its A cell wall

Explanation:

Lemur [1.5K]4 years ago
7 0
I’m sorry if this is wrong but cell wall
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A young female is unconscious after intentionally ingesting a large amount of aspirin. You will MOST likely find her respiration
Inessa05 [86]

Answer:

Deep and rapid.

Explanation:

Respiration may be defined as the process of exchange of gases between the atmosphere, alveoli and body tissue. Two important process of respiration are inspiration and expiration.

Aspirin drug may also effect the rate of respiration in the individual. The breathing rate get increased after taking the excess dose of aspirin. The increase in the breathing rate results in the rapid and deep breathing of the individual.

Thus, the correct answer is option (b).

4 0
3 years ago
The first glycolysis rate-limiting enzyme is under various allosteric regulations. This protein is nearly inactive because of in
navik [9.2K]

Answer:

d. ATP;  Fructose-2,6-bisphosphate

Explanation:

Phosphofructokinase-1 is the enzyme that catalyzes the formation of fructose-1,6-bisphosphate from fructose-6-phosphate and ATP. The phosphofructokinase step is the first rate-limiting step of glycolysis.

Phosphofructokinase-1 activity is allosterically regulated. Its activity is increased whenever the cell's ATP supply is depleted or when its breakdown products, ADP and AMP accuulates in he cell. However, it is inhibited when the cell is amply supplied with ATP.

The activity of phosphofructokinase-1 is restored by fructose-2,6-bisphosphate, its most potent activator.

From the given options:

a. AMP :::: citrate  is wrong because AMP increases the activity of phosphofructokinase-1 and citrate is not its activator but an inhibitor

b. AMP :::: Fru-2,6-P2  is wrong because AMP increases its activity same as fructose-2,6-bisphosphate

c. ATP :::: citrate  is wrong because both citrate and ATP are inhibitors

d. ATP :::: Fru-2,6-P2  is correct as explained above

e. All of these is wrong because of the other wrong options above.

6 0
3 years ago
"All basic life forms were present from the beginning" is a concept which is fundamental to the concept of
Juliette [100K]
Evolution would be the answer you may be looking for.
5 0
3 years ago
Why are scientific theories often so powerful?
vodka [1.7K]
Scientific theories are often so powerful because they have been tested several time by different peoples and they have been found to be true. A scientific theory is a well substantiated explanation for a specific phenomenon which has undergone many observations and experiments and has stand the test of time. Thus, scientific theories always have to be reckon with because they have been severally tested.
4 0
4 years ago
The image below is an example of a food web because...
igor_vitrenko [27]
B , because there is more than one path of energy coming from the plants but if it’s not B then it’s A because arrows that are all over the place is what makes it a web
5 0
3 years ago
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