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Lady_Fox [76]
2 years ago
7

4. Why would a cell need to have the option to make or not make protein

Biology
2 answers:
trasher [3.6K]2 years ago
5 0
If the protein is needed. The cell would make the protein using the DNA but if the protein is not needed there would be a gene regulation which would block the RNA polymerase to make mRNA so protein would not be created. So the protein is only made when it is required. Or else making it would be a waste of energy and resources.
Arte-miy333 [17]2 years ago
4 0

Answer:

Because it might it might not want to

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3 years ago
What are the spacial features of Granite igneous rock
mars1129 [50]
It is in your text book .
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3 0
3 years ago
Please help me !!!!!
xz_007 [3.2K]

Answer:

C

Explanation:

A. is incorrect because the cell displayed is an animal cell not a plant cell, so it cannot photosynthesize. The organelle shown is actually the ER.

B. is incorrect because the structure labelled is the nucleus, not a vacuole. Vacuoles store substances like waste, not DNA.

C. Is correct because the pickle-like organelle is the Mitochondria, also known as the powerhouse of the cell due to cellular respiration taking place there.

D. Is incorrect because the cellular membrane of the animal cell is not rigid like the cell wall of the plant cell, instead it is more semi-permeable.

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8 0
3 years ago
Glial cells called _____ help maintain the blood-brain barrier, whereas _____ create the myelin that envelopes axons. astrocytes
mihalych1998 [28]

Answer: Glial cells called ASTROCYTES help maintain the blood-brain barrier, whereas SCHWANN CELLS create the myelin that envelopes axons

Explanation: Glial cells are specialized cell that are found in both central and peripheral nervous systems, that surrounds the neurones, providing them with support and insulation. There are different types of Glial cells these includes:

- Astrocytes: they maintain the blood brain barrier.

- Schwann cells: create the myelin that envelopes axons of the peripheral nervous system neurones.

- satellite cells: These cells help regulate the external chemical environment of neurones.

- Microglia: they clean up cellular debris through phagocytosis.

- Oligodendrocytes: create the myelin that envelopes axons of the central nervous system

5 0
3 years ago
Read 2 more answers
6. Two pink flowers are crossed. There are 40 offspring which consist of red flowers (RR), white flowers(WW) and pink flowers (R
anyanavicka [17]

two. pink. flowers are crosswd there are 40 offspring which consist of red flowers

7 0
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