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Unit 2 The Cell Review

Total questions: 46

Worksheet time: 24mins

Name
Class
Date
1.

Which photosystem releases the electrons for the electron transport chain?

a)

PSII

b)

PSI I

c)

inner membrane

d)

thykaloids

2.

What does the term biochemistry mean?

a)

Chemistry that deals with living things 

b)

Chemistry that deals with rocks

c)

Chemistry deals with non-living things

d)

Chemistry that deals with airplanes

3.

Which two organelles have electron transport chains and ATP synthase enzymes? Choose 2 only!

a)

Nucleus

b)

Chloroplast

c)

Smooth ER

d)

Mitochondria

e)

Cytoplasm

4.

Select the organelles found in plant cells, but not animal cells. 

a)

Cell Membrane

b)

Nucleus

c)

Cell Wall

d)

Ribosome

e)

Chroloplast

5.

Put the steps of Cellular Respiration in orde

a)

Glycolysis

Kreb's Cycle

ETC

b)

ETC

Glycolysis

Kreb's Cycle

c)

Kreb's Cycle

Glycolysis

ETC

d)

Glycolysis

Kreb's Cycle

Photosynthesis

6.

Which statement best describes the roles of photosynthesis and respiration in the carbon cycle?

a)

Respiration and photosynthesis both add carbon to the atmosphere.

b)

Respiration and photosynthesis both remove carbon from the atmosphere.

c)

Respiration adds carbon to the atmosphere while photosynthesis removes carbon from the atmosphere.

d)

Respiration adds carbon to the atmosphere, while respiration removes carbon from the atmosphere.

7.

Produces identical offspring

a)

Asexual Reproduction

b)

Sexual Reproduction

c)

Meiosis

d)

Photosynthesis

8.

Provides replacement of an organism's cells.

a)

Meiosis

b)

Mitosis

c)

Sexual Reproduction

d)

Cross Over

9.

Which statement describes an advantage of sexual reproduction over asexual reproduction?

a)

Sexual reproduction results in more genetic variation in organisms than asexual reproduction.

b)

Sexual reproduction requires more time to produce organisms than asexual reproduction.

c)

Sexually produced offspring are more dependent on their parents for survival than offspring produced through asexual reproduction.

d)

Sexually produced organisms are more dependent on other organisms for reproduction than offspring produced through asexual reproduction.

10.

If a cell with 100 chromosomes undergoes mitosis, how many cells will be produced and how many chromosomes will be in each cell?

a)

There will be two cells each with 18 chromosomes.

b)

There will be two cells with 100 chromosomes each.

c)

There will be two cells each with 50 chromosomes each.

d)

There will be four cells with 25 chromosomes each.

11.

How do prokaryotic cells differ from eukaryotic cells?

a)

Unlike eukaryotic cells, prokaryotic cells do not have any chromosomes.

b)

Unlike eukaryotic cells, prokaryotic cells do not have a cell wall.

c)

Unlike eukaryotic cells, prokaryotic cells do not have any membrane-bound organelles.

d)

Unlike eukaryotic cells, some prokaryotic cells move using cilia or flagella.

12.

Enzymes function by ______ the activation energy.

a)

Increasing

b)

Lowering

c)

Creating

d)

Not Affecting

13.

If a cell with 90% freshwater was placed in a 30% salt water beaker what would happen to the cell?

a)

Nothing, the cell would be in an isotonic soln.

b)

It would explode

c)

It would shrink

d)

It would grow a cell wall and become a supercell!

14.

Both diffusion and osmosis are examples of ___________.

a)

Passive Transport

b)

Active Transport

c)

Endocytosis

d)

Exocytosis

15.

Which of the following statements explains why the human body produces chemical buffers? 

a)

Buffers maintain a constant pH in the blood.

b)

Buffers dissolve salts and minerals in the blood. 

c)

Buffers decompose food molecules during digestion.

d)

Buffers catalyze chemical reactions in the body cells.

16.

A tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level

a)

hormones

b)

homeostasis

c)

disease

17.

Loops that cause a response to build up and build up until something big happens are called ____________ loops

a)

positive

b)

negative

18.
What type of transport is this?
a)
Endocytosis
b)
Diffusion
c)
Exocytosis
d)
Osmosis
19.
Cells sometimes use energy to transport materials across the cell membrane.  This is called
a)
photosynthesis
b)
osmosis
c)
cellular respiration
d)
active transport
20.
All cells come from___________ cells.
a)
pregnant
b)
pre-existing
c)
paternal
d)
pin size
21.
______________ are the basic unit of life.
a)
DNA
b)
RNA
c)
Cells
d)
Takis
22.

Which scientist coined the term "cell"?

a)

Schleiden

b)

Schwann

c)

Hooke

d)

Van Leuwenhoek

23.

A cell without a true nucleus

a)

Prokaryotic

b)

Eukaryotic

24.
Which of the following cells is a gamete?
a)
egg
b)
bone
c)
heart
d)
muscle
25.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
26.
A human usually has xx amount of chromosomes.
a)
6
b)
22
c)
4
d)
46
27.
A Goat has 60 chromosomes in its body cells.  What is the haploid number?
a)
60
b)
30
c)
100
d)
120
28.

Which organelle contains DNA and controls the cell?

a)

Cell membrane

b)

nucleus

c)

nucleolus

d)

lysosme

29.
The ____________ packages and processes material before it exports out of the cell.
a)
Vacuoles
b)
mitochondria
c)
Golgi apparatus 
d)
nucleus 
30.
Which organelle is a gelatin substance that helps fill out the cell
a)
Chloroplast
b)
Lysosomes
c)
Mitochondria
d)
Cytoplasm
31.

What is the correct hierarchy of cells?

a)

tissues-cells-organ systems-organs-organisms

b)

cell-organisms-tissues-organs-organ systems

c)

cells-tissues-organs-organ systems-organisms

d)

organs-tissues-cells-organ systems-organisms

32.
What is the name and function of the organelle displayed above?
a)
Mitochondria: breakdown glucose and produce ATP
b)
Chloroplast: converts solar energy into chemical energy
c)
Vacuole: Stores H2O, salt, food
d)
Nucleus: stores genetic information
33.
Which organelle helps cleanup the cell
a)
Lysosome
b)
Cytoplasm
c)
Chloroplast
d)
Nucleus
34.
Layered stack of flat membrane-enclosed spaces containing enzymes that process, sort, and deliver proteins. 
a)
Golgi apparatus 
b)
vacuole 
c)
cell wall
d)
none of these 
35.
Fluid filled sac for storage of materials; stores food, water, and enzymes. 
a)
vacuole 
b)
centrosome 
c)
nucleus 
d)
chloroplast
36.
Bean-shaped organelle that supplies energy to the cell and has its own ribosomes and DNA. 
a)
mitochondria
b)
nucleus
c)
cell wall 
d)
smooth endoplasmic reticulum 
37.
A double-layer of phospholipids that forms a boundary between the cell and surrounding environment and controls the passage of materials into and out of the cell.
a)
cell membrane 
b)
cell wall
c)
cytoplasm 
d)
lysosome 
38.
An interconnected network of thin, folded membranes that produce, process, and distribute proteins. Is covered in ribosomes. 
a)
rough endoplasmic reticulum 
b)
cell wall
c)
smooth endoplasmic reticulum 
d)
centriole 
39.
An interconnected network of thin, folded membranes that produce, process, and distribute proteins. Is NOT covered in ribosomes. 
a)
smooth endoplasmic reticulum 
b)
nucleus 
c)
ribsome
d)
Golgi apparatus 
40.

What elements generally make an ionic bond ?

a)

Metal and nonmetal

b)

2 or more nonmetals

c)

2 or more metals

d)

2 elements

41.
What explains the very high melting and boiling point of water
a)
Strong dipole-dipole bonds between water molecules
b)
Strong hydrogen bonds between water molecules
c)
Dispersion forces which are present in all molecules
d)
Asymmetrical shape of the polar bonds.
42.
What might happen if you didn't get enough carbohydrates?
a)
Your body wouldn't be able to build muscle mass
b)
Your body wouldn't have enough energy to function
c)
You would develop serious vitamin deficiencies
d)
Your bones and teeth would become weaker
43.

Which of the following is a main function of a lipid?

a)

source of quick energy

b)

stores energy, insulates us, and makes up the cell membrane

c)

transport substances in and out of the cell

d)

stores genetic information

44.
What does it mean for something to be anaerobic?
a)
It requires CO2
b)
It does not require CO2
c)
It requires oxygen
d)
It does not require oxygen
45.

What do cells need glucose for?

a)

photosynthesis

b)

respiration

c)

protein synthesis

d)

combustion

46.

An early sign that a eukaryotic cell has begun cell reproduction is when

a)

it chemically bonds with a coenzyme.

b)

he cell engulfs new material, absorbing it.

c)

DNA replication occurs in the nucleus.

d)

the plasma membrane thins considerably.

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