Question

4
The cell membrane controls the rate at which molecules, such as water and oxygen,
enter the cell to maintain homeostasis. This rate is determined by the -
F permeability of the cell membrane
G mass of the nucleus
H stage of the cell cycle
J primary function of the cell
5
Some solutes move freely across cell membranes, while other solutes require
assistance from special gates. Passive transport and active transport are methods of
moving solutes across cell membranes.
Which of the following accurately describes the difference between passive transport
and active transport?
A Passive transport can move molecules both in and out of a cell, but active transport
cannot.
B Passive transport works against a concentration gradient, but active transport does
not.
C Passive transport does not require energy, but active transport does.
D Passive transport requires carrier proteins, but active transport does not.

Answer 1

Answer:

the first one is F, the permeability. the second is C

Answer 2

Question 4: The permeability of the cell membrane determines the rate at which molecules enter a cell.

Question 5: The statement that describes the difference between passive and active transport is "Passive transport does not require energy, but active transport does"

CELL MEMBRANE:

• The cell membrane is the organelle that bounds the cell and its component.

• The cell membrane is referred to as a semipermeable membrane because it selectively allows the passage of molecules in and out of the cell.

• However, the rate at which molecules enter a cell is determined by the permeability of the cell membrane. The cell membrane is permeable to some molecules but not permeable to others.

CELLULAR TRANSPORT:

• The transport of substances in and out a cell can be of two types namely: active transport and passive transport.

• Active transport is the type of transport that involves the use of energy in form of ATP. In active transport, substance move against a concentration gradient.

• On the other hand, passive transport does not require energy input because movement of substances occur down a gradient.

• Therefore, the statement that describes the difference between passive and active transport is "Passive transport does not require energy, but active transport does".

Learn more at: https://brainly.com/question/18067330?referrer=searchResults

Also: https://brainly.com/question/21464140?referrer=searchResults