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Plasma Membrane and its function

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.
Some substances can cross the membrane, while others can not?
a)
element
b)
double helix
c)
selectively permeable
d)
active transport
2.
Made from elements other than carbon?
a)
double helix
b)
nucleic acids
c)
inorganic compounds
d)
organic compounds
3.
The movement of substances through the cell membrane without the use (input) of energy
a)
endocytosis
b)
passive transport
c)
active transport
d)
diffusion
4.
When an input (use of) energy is required to move materials through a cell membrane?
a)
nucleic acids
b)
endocytosis
c)
active transport
d)
organic compounds
5.
The Diffusion of water through a cell membrane?
a)
osmosis
b)
endocytosis
c)
exocytosis
d)
compound
6.
Regulate nearly all chemicals reactions in cells?
a)
elements
b)
compound
c)
osmosis
d)
enzyme
7.
The total of all chemical reactions in an organism?
a)
metabolism
b)
exocytosis
c)
endocytosis
d)
equilibrium
8.
Always contain carbon and hydrogen, and usually are associated with living things?
a)
organic compounds
b)
nucleic acids
c)
active transport
d)
inorganic compounds
9.
Are large organic molecules containing carbon, hydrogen, oxygen, and nitrogen. These molecules make up parts of the cell membrane and organelles.
a)
protein
b)
nucleic acids
c)
element
d)
exocytosis
10.
Fats store energy for later use and cell membranes are made of this?
a)
element
b)
nucleic acids
c)
lipid
d)
compound
11.
Which form of energy do organisms use to perform daily activities?
a)
ATP
b)
water
c)
oxygen
d)
Carbon dioxide
12.
The gel-like fluid found inside a cell is called ________
a)
cytoplasm
b)
extracellular fluid
c)
interstitial fluid
d)
ground substance
13.
The phosphate heads on the phospholipids found in the cell membrane are...
a)
hydrophobic
b)
hydrophilic
c)
none of the above
14.
The lipids in a cells membrane are...
a)
hydrophobic
b)
hydrophilic
c)
none of the above
15.
_________ creates a physical barrier between internal cellular and external enviroment
a)
cell membrane
b)
nucleus
c)
endoplasmic reticulum
d)
orbital shell
16.
__________ is network of microfilaments and microtubules that serves as scaffolding to provide an internal structure of the cell
a)
cytoskeleton
b)
cytoplasm
c)
cilia
d)
plasmamembrane
17.
________ are structures within the cell that have distinct functions
a)
organs
b)
organelles
c)
tissues
d)
DNA
18.
These "protein factories" read mRNA and synthesize proteins from their code
a)
ribosomes
b)
mitochondria
c)
lysosomes
d)
centrioles
19.
Also known as the cells "power plant", it is the organelle responsible for cellular respiration, and thus the production of ATP.
a)
ribosomes
b)
mitochondria
c)
lysosomes
d)
centrioles
20.
Also known as the "packing and shipping plants" this organelle synthesizes proteins and lipids and stores and delivers them around or outside of the cell.
a)
ribosomes
b)
mitochondria
c)
lysosomes
d)
golgi body
21.
This organelle is continuous with the nucleus membrane, is involved with protein and lipid synthesis, and can be either smooth or rough
a)
endoplasmic reticulum
b)
golgi body
c)
mitchondria
d)
cytoskeleton
22.
The "rough" in rough endoplasmic reticulum is in reference to the presence of _________
a)
ribosomes
b)
DNA
c)
RNA
d)
lysosomes
23.
Also known as the "garbage disposals" this organelle engulfs, destroys and digests unwanted/unneeded material.
a)
lysosomes
b)
ribosomes
c)
centrioles
d)
flaggellum
24.
DNA is found within the cells ______
a)
nucleus
b)
ribosomes
c)
mictochondria
d)
lysosomes
25.
Proteins are made up of...
a)
amino acids
b)
carbohydrates
c)
DNA
d)
fatty acids
26.
The passive movement of molecules from high to low concentration until equilibrium is reached is called _________
a)
diffusion
b)
filtration
c)
endocytosisis
d)
cytokinesis
27.
____________ is the passive movement of water across a cell membrane
a)
osmosis
b)
diffusion
c)
cytokinesis
d)
mitosis
28.
_______ transport uses ATP to faciliate movement across the cell membrane
a)
active
b)
passive
c)
diffusive
d)
filtrated
29.
The tendency of the body's internal environment to remain stable is called ________
a)
homeostasis
b)
metabolism
c)
metabolic rate
30.
This type of feedback inhibits a change from normal
a)
positive feedback
b)
negative feedback
31.
insulin being released in response to high blood sugar is an example of what type of feedback system
a)
positive feedback
b)
negative feedback
32.
uterine contractions are an example of what type of feedback system
a)
positive feedback
b)
negative feedback
33.

Which of the following is NOT a function of the cell membrane?

a)

It controls what enters or leaves the cell

b)

It recognizes signals from other cells

c)

It lets molecules like oxygen and food enter the cell and others like carbon dioxide and wastes leave the cell

d)

It is an impermeable membrane that allows nothing in or out

34.

In the following diagram of the cell membrane, name the structure labeled 'A'.

a)

Tranport protein

b)

Phospholipid bilayer

c)

Cholesterol

d)

Glycolipid

35.

In the following diagram of the cell membrane, name the structure labeled 'B'.

a)

Transport protein

b)

Phospholipid bilayer

c)

Cholesterol

d)

Glycoprotein

36.

Which of the following is true of this phospholipid molecule?

a)

The fatty acid tails are polar, hydrophilic molecules.

b)

The phosphate head contains no phosphorus.

c)

The fatty acid tails are non-polar, hydrophobic molecules.

d)

Water passes easily through the fatty acid tails.

37.

Which of the following is the name of the model of the cell membrane that states that the phospholipids, proteins, and other molecules that make up the membrane are not stationary (i.e., they move relative to one another).

a)

Cell impermeability model

b)

Enzyme lock and key model

c)

Theory of relativity

d)

Fluid mosaic model

38.

Which of the following describes the dissolved molecules labeled 'C' in the diagram.

a)

Molar molecules

b)

Solution molecules

c)

Solvent molecules

d)

Solute molecules

39.

Which of the following describes the water in the diagram?

a)

Solvent

b)

Solute

c)

Solution

d)

None of the above

e)

All of the above

40.

The cell membrane is also called as

a)

Lipid

b)

cell wall

c)

plasma membrane

d)

cell organelle

41.

The cholesterol molecule in the plasma membrane

a)

keeps the membrane stable

b)

shakes the membrane

c)

makes the membrane more fluid like

d)

dries the membrane

42.

The cholesterol can make up nearly

a)

one fourth of the cell membrane.

b)

half of the cell membrane

c)

entire cell membrane

d)

no cell membrane

43.

The cell membrane is made of

a)

lipids and carbohydrates

b)

lipids and proteins

c)

proteins and cholesterol

d)

none of the above

44.

The Red Blood Cells are known as

a)

Leukocytes

b)

Thrombocytes

c)

Erythrocytes

d)

Macrophages

45.

This organelle gives shape to the cell

a)

skeleton

b)

cytoskeleton

c)

actin

d)

Myosin

46.

The two protein filaments that help muscles to move are

a)

keratin

b)

elastin

c)

actin and Myosin

d)

tubulin and myosin

47.

Which two muscle cells are striated?

a)

cardiac and smooth muscle cells

b)

smooth and skeletal muscle cells

c)

cardiac and skeletal muscle cells

d)

none of the above

48.

Which of the following action is not under our control?

a)

voluntary action

b)

involuntary action

c)

main action

d)

all of the above

49.

Involuntary actions are regulated by

a)

Autonomic nervous system

b)

Somatic nervous system

c)

sensory nerves

d)

motor nerves

50.

Sensory nerves and motor nerves form the

a)

Autonomic nervous system

b)

Somatic nervous system

c)

involuntary actions

d)

none of the above

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