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3 years ago

Mee help right right now please

Biology

2 answers:

Roman55 [17]3 years ago

7 0

The brown is protein channel

kipiarov [429]3 years ago

6 0

Answer:

1) B - protein channel

2) D - to assist in the movement of substances across the membrane by facilitated diffusion or active transport

Explanation:

1) B is the answer because the proteins would travel through the protein channel to enter or leave the cell.

2) D is the answer because the channel allows protein molecules to pass through a selectively permeable cell membrane through active transport and facilitated diffusion.

Hope this helps!

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What substance is considered a building block for all living things?

kondaur [170]

~Hello there!

Your question: What substance is considered a building block for all living things?

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3 years ago

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What type of food properties do not allow harmful bacteria to multiply rapidly?

user100 [1]

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3 years ago

How are messages carried throughout the human body from the brain to the nervous system?A) Active transportB) Electrical signals

aivan3 [116]

The answer is the letter B. Electrical signals.

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1 year ago

Plz help ASAP! THANK YOU

marysya [2.9K]

Answer:

According to the diagram, what is occurring in step 7 is cytokinesis, with the separation of two daughter cells, following cell division.

Explanation:

Cytokinesis is a process that occurs at the end of mitosis or meiosis, being the final step of cell division. This mechanism allows the separation of the two daughter cells, with equal distribution of cytoplasm and formation of cell membrane, differentiating into two independent cells.

In the diagram it can be observed (step 7) that after the division process —in yellow— two arrows pointing to two cells are evident, which implies the process of cytokinesis.

Prior to the cytokinesis process, karyokinesis occurs, which is the separation of nuclei and formation of the nuclear membrane.

In animal cells, karyocinesis occurs by the effect of a ring of actin and myosin that helps to force the separation. In the plant cell, the fragmoplast is formed, a septum that induces the separation of the daughter cells.

The other options are not correct because:

Cell growth occurs in G1 phase.
Cell preparation occurs in interphase.
DNA replication occurs in S phase.
Mitosis is represented in yellow, and involves 4 phases.

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3 years ago

Bicarbonate ions which migrate from red blood cells into the surrounding fluid are replaced by _____ ions.

Mrac [35]

Answer: chloride ions

Explanation:

This movements of chloride ions into the blood plasma to replace the outward diffused bicarbonate ions is called chloride shift, It occurs to restore the blood ionic balance altered by the bicarbonate ions diffusion out into plasma

The same amounts of Chloride ions replaced the lost amount of bicarbonate ions

7 0

3 years ago