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kicyunya [14]
3 years ago
5

Why is it important for a cell membrane to be selectively permeable?

Biology
1 answer:
const2013 [10]3 years ago
3 0

Answer:

Since the selectively permeable character allows required components to pass in and out of the cell.

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A mutation that inhibits Ras from hydrolyzing GTP will
Luba_88 [7]

Answer:

The correct answer is option e. "result in permanent activation of Ras".

Explanation:

Ras function is regulated by the GTP/GDP cycling rate, in a way that Ras is inhibited by the substrate GDP. Once Ras hydrolyzes GTP, GDP is produced and Ras is inhibited by GDP. A mutation that inhibits Ras from hydrolyzing GTP, would lock Ras in a permanently activated state because no GDP would be produced and there will be no substrate to inhibit Ras.

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3 years ago
Which layer of the Earth is under the greatest amount of pressure?
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C. The solid inner core

8 0
4 years ago
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The Lorax tried talking the Once-ler out of chopping down the Truffula trees, until some event occurred. What happened that conv
jeka57 [31]

His business failing was the reason why he was convinced that he was right to chop down the tree.

<h3>What is Chop?</h3>

This is defined as the process in which a substance such as a tree is cut down through the use of tools.

Once-ler business failed and he felt chopping down the Truffula trees will result in him having money through the sales of the resources.

Read more about Lorax here brainly.com/question/7643286

#SPJ1

6 0
2 years ago
(WILL MARK BRAINLIEST AND THANK YOU!) **EXTRA POINTS**
liberstina [14]

Answer:

This structure provides support and protection for plant cells = Cell Wall

This is a large, central fluid-filled structure that provides turgidity = Vacuole

A thin semipermeable barrier around the cell which regulates what enters and leaves the cell = Cell membrane

The control center of the cell = Nucleus

It is often described as the cells Power Plant = Mitochondria

This is used by plant cells for photosynthesis = Chloroplast

Hope this helps :)

Plz mark Brainliest :D

Explanation:

The giant blue thing is the vacuole

The thin yellow line is the cell membrane

The yellow and orange ball is the nucleus

The light green thing with zig zag lines is the mitochondria

The dark green thing inside the cell is the chloroplast

The thing outside the cell is the cell wall its green

6 0
3 years ago
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Give a fact about red blood cells
Novosadov [1.4K]

Answer:

Red blood cells (erythrocytes)

Red blood cells carry oxygen from your lungs to your tissues. They also bring carbon dioxide back to your lungs. Red blood cells make up almost half of your blood. The lifespan of a red blood cell is around 120 days

Explanation:

7 0
3 years ago
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