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2 years ago

Why a molecule may not be to pass into or out of a cell

1 answer:

7 0

All cells have selectively permeable membranes, which means that they let important molecules inside the cell while leaving other ones outside. Important molecules go inside the cell by the process of diffusion or osmosis.

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Complete the sentences. Each term may be used more than once.

11Alexandr11 [23.1K]

Answer:

The correct answer is -

1. right-handed

2. right-handed

3. positive

4. left-handed

5. negative

6. negative

Explanation:

In a circular bacterial chromosome, the structure of DNA is a right-handed double helix In a circular bacterial chromosome.

If DNA is twisted in the right-handed direction, it becomes overwound. Overwinding results in positive supercoiling takes place. If DNA is twisted in the left handd direction, it becomes underwound. Underwinding results in negative supercoiling.

f. One effect negative supercoiling in bacterial chromosomes is to promote separation of the two strands of DNA in the double helix

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2 years ago

The primary colors of visible light are: Answer: red, green and blue

Lelechka [254]

Answer:

Correct / true

Explanation:

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2 years ago

Blood is carried away from the heart to provide oxygen to rest of the body by the

LuckyWell [14K]

Tubes that lead from the heart to the rest bud

3 0

2 years ago

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Which term describes the position of a gene on a chromosome?

Dima020 [189]

1: B

2:D

Those are the answers!

Hope this helps!

I am joyous to assist you anytime.

~Jarvis

8 0

2 years ago

IF SOIL HAS ALL THE NUTRITION , THEN WHY DO WE NEED TO REPLINISH IT

Naya [18.7K]

MARK ME BRAINLIEST

Answer:

Continuous cultivation of crops in soil leads to the depletion of certain nutrients.
If these nutrients are not replenished, soil becomes sterile and unfit for cultivation.

3 0

1 year ago

Read 2 more answers