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unit 2 review AP Bio 2021

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.
What is the function of ribosomes? 
a)
to bond amino acids together to form proteins
b)
to break down biological polymers
c)
to modify lipids and proteins
d)
to contain 
DNA
2.
Where can you find ribosomes? 
a)
only in prokaryotic cells
b)
only in plant cells
c)
only in eukaryotic cells
d)
in both prokaryotic and eukaryotic cells
3.
Where can you find ribosomes inside of eukaryotic cells? 
a)
only inside of the nucleus
b)
free-floating
c)
attached to the Endoplasmic Reticulum
d)
both free-floating and attached to the Endoplasmic Reticulum
4.
How many pieces make up a ribosome?
a)
1
b)
2
c)
3
d)
4
5.

A continuous membrane system that forms a reticular network which transverses the cytoplasm is known as.....

a)

Lysosome

b)

Endoplasmic Reticulum

c)

Golgi complex

d)

Ribosome

6.

Which of the following is the basic type of E.R. ?

a)

Rough E.R.

b)

Smooth E.R.

c)

Both of above

d)

None of above

7.

Synthesis and packeging of proteins occurs in...

a)

Rough ER

b)

Smooth ER

c)

Lysosome

d)

Plasma membrane

8.

......is important in the creation and storage of lipids and steroids.

a)

Smooth ER

b)

Rough ER

c)

Lysosome

d)

Mitochondria

9.
The golgi body packages, stores and modifies protiens 
a)
No
b)
Maybe
c)
Yes
d)
I have no idea
10.
______________ produces the most ATP.
a)
photosnthesis
b)
aerobic respiration
c)
anaerobic respiration
d)
glycolysis
11.

What is the purpose of the mitochondria?

a)

The mitochondria makes glucose and releases oxygen.

b)

The mitochondria breaks down glucose to make ATP.

c)

The mitochondria will produce proteins.

d)

The mitochondria will absorb light energy.

12.
Cellular respiration takes place in the
a)
nucleus
b)
cytoplasm
c)
ribosomes
d)
mitochondria
13.
break down (digest) worn out cell parts, mostly in animal cells
a)
cytoplasm
b)
lysosomes
c)
mitochondria
d)
vacuoles
14.

Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components. In animal cells, which of the following organelles contains these hydrolytic enzymes?

a)

central vacuole

b)

peroxisome

c)

lysosome

d)

chloroplast

15.
Fluid filled sac for storage of materials; stores food, water, and enzymes. 
a)
vacuole 
b)
centrosome 
c)
nucleus 
d)
chloroplast
16.

Which of the following is NOT a product of the light reactions?

a)

Oxygen

b)

NADPH

c)

ATP

d)

Glucose (Sugar)

17.

What part of the plant cell performs photosynthesis?

a)

The Mitochondrion

b)

The Nucleus

c)

The Chloroplast

d)

The Cell Wall

18.

What is the function of the intermembrane space of the mitochondria?

a)

space where H+ ions accumulate quickly for ATP synthesis

b)

space where electrons accumulate for ATP synthesis

c)

to increase the surface area to volume ratio for ATP production

19.

Increase the surface area available for ATP synthesis

a)

cristae

b)

matrix

c)

inner membrane

d)

outer membrane

20.
a)
Grana
b)
Thylakoid
c)
Stroma
d)
Jelly Filling
21.
a)
Stroma
b)
Thylakoid
c)
Skittle
d)
Grana
22.

Which pigment gives leaves their color?

a)

chlorine

b)

chlorophyll

c)

cholesterol

23.
What does NADPH do? 
a)
carries electrons to the Calvin cycle
b)
carries electrons to the ETC
24.

Which of the following is true of the Calvin Cycle?

a)

carbon dioxide and energy (ATP and NADPH) are used to make organic compounds

b)

energy is absorbed from sunlight and converted to chemical energy stored in ATP and NADPH

c)

Occurs in the thylakoid

d)

Occurs in the cytoplasm

25.
Before entering Krebs Cycle, pyruvate is:
a)
Oxidized
b)
Reduced
c)
Isomerized to Acetyl-CoA
d)
Phosphorylated
26.
How many FADH2 molecules are produced by 1 molecule of glucose?
a)
1
b)
2
c)
3
d)
4
27.
What determines the rate of nutrients and waste are exchanged from the cell and the environment?
a)
surface ratio
b)
volume
c)
surface area
d)
surface area to volume ratio
28.
Which cells are more efficient at obtaining nutrients?
a)
Small Cells
b)
Medium Size Cells
c)
Large Cells
d)
X-Large Cells
29.
The absorption of nutrients is determined by...
a)
The cell's volume
b)
The cell's surface area
c)
The cell's ribosomes
d)
The cell's DNA
30.
In the phospholipid, the polar head is considered what type of structure?
a)
hydrophobic
b)
insoluble
c)
hydrophilic
31.

Plasma membranes are selectively permeable. This means

a)

anything can pass in and out

b)

the membrane regulates the passage of the material in and out of the cell

c)

glucose cannot enter the cell

d)

cholesterol cannot enter

32.

Small, nonpolar, hydrophobic molecules such as fatty acids

a)

easily pass through the membrane's bilayer

b)

very slowly diffuse through the bilayer

c)

require transport proteins

d)

enter through endocytosis

33.

Membrane phospholipids

a)

have hydrophobic heads that face the center of the membrane and are shielded from water

b)

have hydrophilic tails that face outward

c)

remain fluid because they are tightly packed

d)

none of these

34.
Which statement best describes the cell membrane?
a)
The protective outer layer that controls what enters and leaves the cell.
b)
Stores information on DNA molecules / Directs and controls the activities of the cell.
c)
A folded membrane that moves materials around inside cells / Also acts as the site of manufacturing materials needed by the cell.
d)
The smallest organelle with a huge job / Makes proteins, which are the building blocks of the body.
35.
What does the "fluid mosaic model" mean about the cell membrane?
a)
It can dissolve into fluid.
b)
The cell is mostly made of mosaic molecules.
c)
It looks like a flexible pattern made up of different parts.
d)
Somebody else should name these things.
36.
What characteristic of the cell membrane allows only certain material to pass through?
a)
selective gating
b)
selective permeability
c)
hydrophilia
d)
selective service
37.

Describe what will happen to the solution on the right over time.

a)

Solutions remained unchanged as the membrane is impermeable to the particles

b)

The larger purple particles will move to the left where there are a lower concentration of purple particles

c)

Smaller red particles cross membrane into the higher concentration on the right

d)

Smaller red particles cross membrane into the lower concentration on the right

38.
The picture shows a cell. Which correctly identifies the structures in the cell?
a)
W-chloroplast
X-cell wall
Y-cytoplasm
Z-nucleus
b)
W-cell wall
x-nucleus
Y-cytoplasm
Z-Chloroplast
c)
w-cytoplasm
x-nucleus
Y-cell wall
Z-chloroplast
d)
W-cytoplasm
X-chloroplast
Y-cell wall
Z-nucleus
39.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
40.
What is the definition of  Selective Permeability?
a)
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
b)
The movement of materials through (or across) the cell membrane
c)
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
d)
The movement of molecules from an area of high concentration (where the molecules are more crowded together) to a area of low concentration (where molecules are more spread apart)
41.
Osmosis
a)
diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration
b)
the diffusion of particles from an area of high concentration to an area of low concentration
c)
diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration
d)
the diffusion of particles from an area of low concentration to an area of high concentration
42.

Which is not a form of passive transport?

a)

Osmosis

b)

Facilitated diffusion

c)

Active transport

d)

Diffusion

43.

Passive transport moves molecules from...

a)

low concentration to high concentration

b)

high concentration to low concentration

44.
Which type of transport requires an input of energy?
a)
Passive Transport
b)
Osmosis
c)
Simple Diffusion
d)
Active Transport
45.
Which form of active transport is being shown?
a)
Facilitated Diffusion
b)
Exocytosis
c)
Endocytosis
d)
Protein Pumps
46.
When cells take in a liquid through active transport, what is it called?
a)
Exocytosis
b)
Phagocytosis
c)
Pinocytosis
d)
Osmosis
47.
When cells take in food particles through active transport, what is it called?
a)
Pinocytosis
b)
Phagocytosis
c)
Exocytosis
d)
Osmosis
48.

An example of facilitated diffusion is

a)

CO2 and O2 exchange in the lungs

b)

Glucose transport

c)

Na+ / K+ Pumps

d)

Endocytosis

49.

Facilitated diffusion needs what to get particles from one side of the membrane to the other?

a)

a membrane-spanning protein

b)

a surface protein

c)

a phospholipid

d)

a carbohydrate

50.

What is the movement of particles with the concentration gradient using protein "helpers"?

a)

diffusion

b)

facilitated diffusion

c)

active transport

d)

enzymatic reactions

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