Question

Which substances need energy to transport across plasmamembrane
Describe structure of plasmamembrane

Write 2 differences between plasmamembrane and cell wall
Describe these terms

Endocytosis
Exocytosis
Isotonic solution
2 T/F
Plasmamebrane is freely permeable
Plasma membrane is semiprmeable
Plasmamembrane is aselectively permeable
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Answer 1

Answer:

To move substances against a concentration or electrochemical gradient, the cell must utilize energy in the form of ATP during active transport. Primary active transport, which is directly dependent on ATP, moves ions across a membrane and creates a difference in charge across that membrane.

Explanation:

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Answer 2

Answer:

1) metal ions such as NA+,K+,and Ca2

2)a )Cell wall occurs in plant cells only.plasma membrane can be found in both plant cells as well as animal cells.

b ) cell wall is generally rigid and permeable.plasma membrane is flexible and selectively permeable.

c) cell wall is non living and quite thick in plant cells . plasma membrane is living and quite thin.

Explanation:

1) thesethese charged particles required iron pumpers Orange travels to pass through the plasma membrane and distribute through the body.

ENDOCYTOSIS

Endocytosis is a cellular process in which substances are brought into the cell. The material to be internalized is surrounded by an area of cell membrane, which then buds off inside the cell to form a vesicle containing the ingested material. Endocytosis includes pinocytosis and phagocytosis

EXOCYTOSIS

exocytosis is a form of active transportation and bulk transportation in which cell transports molecules out of the cell by secreting them true and energy dependent process.

2)T/F

a)F

b)F

c) T

only the third statement is true because plasma membrane allows the movement of substances in and out of sales it is called a selectively permeable membrane

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