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tatuchka [14]
3 years ago
9

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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How is the enzyme similar to a lock and a key
Amiraneli [1.4K]

Answer

Explanation:

Its similar because the enzyme has to be able to fit perfectly in with any other molecule

7 0
3 years ago
Stick insects look like Twigs is that an example Bastian mimicry
artcher [175]

Nope. Bastian mimicry is when a harmless organim disguises themself as a harmfull one. As for describing a stick bug I beleive the word you're looking for is camoflage.

8 0
3 years ago
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Which of the following cells engulf antigens by phagocytosis and present fragments of them on their own surfaces for recognition
Colt1911 [192]

Answer:

C) Dendritic cells.

Explanation:

Dendritic cells are types of immune cells that carry out immune responses by presenting antigens on its surface to other immune system cells.

They are derived from the bone marrow and have tree-like structures. Dendritic cells are found in the skin, lungs, nose stomach and intestines. They are phagocytes and are antigen presenting cells (APCs).

Dendritic cells work by capturing the antigens from foreign bodies and processing and presenting these antigens on their cell surfaces for recognition and action by other cells of the immune system.

7 0
4 years ago
A force is required to change motion. True False
steposvetlana [31]
False. gravity doesn't change motion but it's still a force
4 0
3 years ago
Where does the male human body store sperm until it reaches full maturity?
statuscvo [17]
Once the sperm cells are formed, the are stored in the epididymis, where they are temporarily stored while they mature.

Hope this helps :)
6 0
3 years ago
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