Equilibrium is reached

when particles are evenly distributed through the space.

What kind of transport doesn't require the use of energy to move materials across the membrane?

all of these don't require the cell to use energy

What is concentration?

amount of things in a given area

The primary function of the cell membrane is

to control what moves in and out of the cell.

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Duplicate of Cell Membranes & Cell Transport

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Covers the basics about cell membranes and cell transport. Made for grade 10 Biology.

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Questions 18

Answers

1
Equilibrium is reached
at the end of active transport.
when particles are evenly distributed through the space.
when movement of particles stops.
only during passive transport.
2
What kind of transport doesn't require the use of energy to move materials across the membrane?
diffusion
osmosis
facilitated diffusion
all of these don't require the cell to use energy
3
Movement of particles from an area of high concentration to an area of lower concentration is:
equilibrium
osmosis
diffusion
endocytosis
4
The stuff that is dissolved is the _________.
suspension
solution
solute
solvent
5
The stuff that does the dissolving is the __________.
solute
solution
solvent
suspension
6
What molecules are imbedded in the bilayer?
nucleic acids
glucose
ribosomes
proteins
7
__________ is the diffusion of water through a semipermeable membrane.
active transport
osmosis
exocytosis
facilitated diffusion
8
What is structure "D"?
an extrinsic protein
an intrinsic protein
a glucose molecule
a phospholipid
9
What is concentration?
the amount of mass something has
the density of a substance
the weight of a substance
amount of things in a given area
10
A cell is in a ____solution when: size doesn't change; water goes in and out at the same rate
hydroponic
hypertonic
hypotonic
isotonic
11
The basic structure of the cell membrane is
made of proteins.
a liquid bilayer.
impermeable.
a phospholipid bilayer.
12
"A" is
a nonpolar fatty acid
a protein
cholesterol
a polar phosphate
13
What kind of solution is the red blood cell in the middle in?
hypotonic
hypertonic
isotonic
hydroponic
14
Active transport
is usually done by transport proteins in the cell membrane
all of the answers are correct
requires energy
moves materials against a concentration gradient
15
What kind of solution is the red blood cell on the right in?
concentrated
dilute
hydroponic
isotonic
16
The primary function of the cell membrane is
cell signaling.
to control what moves in and out of the cell.
to protect the cell
to provide support for the cell.
17
Another name for the cell membrane is
the plasma membrane
the nuclear membrane
the endocytic barrier
the cell wall
18
Passive transport
doesn't require energy.
requires energy.
moves particles from a high to a low concentration.
moves particles against a concentration gradient.

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