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Sedbober [7]
3 years ago
14

An educated guess or rational explanation about a specific phenomenon

Biology
1 answer:
Step2247 [10]3 years ago
6 0
Hypothesis: <span>An educated guess or rational explanation about a specific phenomenon</span>
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Answer: Large molecules and wastes move through the membrane through forms of active transport- endocytosis and exocytosis.

Explanation:

Molecules are moved across the cell membrane via different mechanisms like diffusion, facilitated diffusion and passive transport; however, some very large molecules require specialized types of active transport to cross over- these are endocytosis and exocytosis.

During endocytosis large molecules cells and cell fragments moved across the plasma membrane through a process of <em>invagination;</em> piece of the external cell membrane falls into itself and forms a small pocket that surrounds the target molecule this breaks off from the membrane to form an intracellular vesicle. Different methods of endocytosis such as <em>phagocytosis, pinocytosis </em>and receptor-mediated <em>endocytosis</em>, take in cells,  water and targeted substances respectively.

Like endocytosis, the particles (signal proteins, neurotransmitters and waste material) are surrounded by a phospholipid membrane. However, in exocytosis, this membrane is formed in the cytoplasm, and merges with the plasma membrane’s interior in a process <em>opposite to </em>endocytosis; material is removed from the cell and exported into the cell’s exterior called the extracellular space.

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When a cell does not contain a nucleus, where is the DNA?
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Prokaryotic cells do not have nucleui so their DNA floats around in the cytoplasm.

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whats the question fam Explanation:

bruh moment

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??

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