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sweet-ann [11.9K]
2 years ago
5

What functions must a membrane allow?

Biology
1 answer:
andreev551 [17]2 years ago
3 0

Answer:

They keep toxic substances out of the cell

Explanation:

They contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles

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Type II topoisomerases display all of the following characteristics EXCEPT
Firlakuza [10]

Answer:

The correct answer is option A. "They only introduce supercoiling and cannot relax a covalently closed circular DNA".

Explanation:

Type II topoisomerases are enzymes that regulate the winding an unwinding of DNA during DNA replication. Basically, these enzymes are the scissor that remove the knots and tangles formed during the replication process. Is false to affirm that type II topoisomerases only introduce supercoiling and cannot relax a covalently closed circular DNA. Bacterial type II DNA topoisomerases  work with the circular DNA of bacterium by changing the linking number of circular DNA by ±2.

6 0
3 years ago
Select the correct answer.
anyanavicka [17]

Answer:

I believe the answer is C

6 0
3 years ago
Read 2 more answers
7 N<br> 7 N<br><br> 8 N<br> 8 N<br><br> 12 N<br> 12 N<br><br> 13 N
irinina [24]

Answer:

13n

Explanation:

basically goes by .2 and divide so 2.6 or 26/2=13

7 0
4 years ago
The frontal lobes also include the primary ____________ which controls voluntary motor functions.
lakkis [162]

Answer:

The correct answer will be- primary motor cortex

Explanation:

The motor cortex is the portion of the brain present in the precentral gyrus of the frontal lobe of the brain.  The motor cortex is thought to be involved in the planning actions and control voluntary actions.

The motor cortex is divided into three regions: premotor cortex, primary motor cortex  and supplementary motor area.

The primary motor cortex is the region of the motor cortex which controls the voluntary movements in the human body by generating the impulse.

Thus, the primary motor cortex is the correct answer.

5 0
3 years ago
When the oxygen is used to break down in cellular respiration, what does it release ?
lawyer [7]

Answer:

Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP. Overall, this three-stage process involves glucose and oxygen reacting to form carbon dioxide and water.

3 0
3 years ago
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