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OH Review 1/27

Total questions: 40

Worksheet time: 40mins

Name
Class
Date
1.
The element _______is found in all of the organic compounds.
a)
Iron
b)
Nitrogen
c)
Carbon
d)
Oxygen
2.

What is a monomer?

a)

The smallest unit of life

b)

Molecule that makes up polymers

c)

The lowest level of organization

d)

A single atom

3.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
4.

DNA and RNA are examples of...

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

5.

Which of the following organic compounds is a short-term source of energy for living things?

a)

carbohydrates

b)

lipids

c)

nucleic acids

d)

proteins

6.
Which macromolecule stores energy, insulates us, and makes up the cell membrane?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
7.

Lipids make up the cell membrane.

a)

True

b)

False

8.

The substance that binds to an enzyme is called a?

a)

Polypeptide

b)

Co-enzyme

c)

Vitamin

d)

Substrate

9.

Which of the following best explains why enzymes are necessary for reactions in our cells?

a)

The reactions are too slow to meet the needs of the cell if enzymes are missing.

b)

Enzymes supply the oxygen necessary for the reactions.

c)

Enzymes change reactants from solid to liquid during the reactions.

d)

The reactions take up too much space in the cell if enzymes are missing.

10.

Once a new product leaves an enzyme, the enzyme is unchanged and ready for the next substrate. What is this called?

a)

fragile

b)

reusable

c)

specific

d)

catalyst

11.

Changes in pH and temperature can ___________________ an enzyme which causes it to lose its shape and affects its function.

a)

puncture

b)

denature

c)

double

d)

delete

12.

What is the optimal temperature of this enzyme?

a)

60

b)

40

c)

70

d)

30

13.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
14.

All enzymes function optimally at the same pH and temperature.

a)

True

b)

False

15.
Every living organism is made up of one or more cells
a)
True
b)
False
16.
A cell is...
a)
the basic unit of structure and function in living organism
b)
an organism
c)
a basic part of everything that we see
d)
found only in animals, not plants
17.

What is the function of the cell nucleus found in both plant and animal cells?

a)

to produce energy

b)

to control cell activity

c)

to remove waste products

d)

to allow molecules to enter the cell

18.

Which of the following converts food into energy for the cell?

a)

vacuole

b)

mitochondria

c)

cytoplasm

d)

cell membrane

19.
What do vacuoles do? 
a)
They actually do not have an important role
b)
They protect the cell
c)
They are the brain of the cell
d)
storage area for cells; water storage in plants 
20.
A specialized structure inside of the cell are known as _____________.
a)
organ
b)
items
c)
organelle
d)
excess materials
21.
Cell organelles that are responsible for digesting food, worn out organelles and other cellular wastes are called ___________________.
a)
Mitochondria
b)
Vacuoles
c)
Lysosomes
d)
Chlororplasts
22.

Chloroplasts in plant cells allow the plant to perform a function that animal cells cannot do. What is the main function of the chloroplasts found in plant cells?

a)

To absorb light energy and manufacture food

b)

To remove waste materials by active transport

c)

To manufacture chemical energy from food

d)

To control the shape of the cell

23.

All cells need energy to function. Which cell organelle is responsible for producing energy in the cell?

a)

Chloroplasts

b)

Mitochondria

c)

Nucleus

d)

Vacuoles

24.

What is the function of a cell wall?

a)

Protect and support the cell

b)

Perform different functions in each cell

c)

Prevent water from passing through it

d)

Prevent oxygen from entering the cell

25.
Who was the first  person to see cells under the microscope and give them their name?
a)
Mattias Schleiden
b)
Robert Hooke
c)
Theordor Schwann
d)
Anton van Leeuwenhoek
26.

Single celled organisms are called...

a)

Unicellular

b)

Multicellular

c)

Bicellular

d)

Tricellular

27.

Many celled organisms are called...

a)

Unicellular

b)

Multicellular

c)

Bicellular

d)

Tricellular

28.

Eukaryotic cells are complex.

a)

True

b)

False

29.

The _________ ships and packages proteins and lipids.

a)

Golgi apparatus

b)

Mitochondria

c)

Rough endoplasmic reticulum

d)

Smooth endoplasmic reticulim

30.

Jelly-like material that makes up most of the cell

a)

Cytoskeleton

b)

Cytoplasm

c)

Cyclops

d)

Cytoliquid

31.
Why do humans require many different types of cells to survive?
a)
Human cells are identical and work together to perform the same function.
b)
Human cells are specialized and work together to perform the same function.
c)
Human cells are identical and work independently to perform different functions.
d)
Human cells are specialized and work independently to perform different functions.
32.

Synthesis and packeging of proteins occurs in...

a)

Rough ER

b)

Smooth ER

c)

Lysosome

d)

Plasma membrane

33.

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

a)

Smooth ER

b)

Rough ER

c)

Lysosome

d)

Mitochondria

34.

Endoplasmic reticulum is also called the...

a)

EDR

b)

RE

c)

ER

d)

Endoplasmic

35.

Builds proteins, each cell contains thousands, found on ER and floating throughout cell.

a)

Ribosomes

b)

Nucleus

c)

Vacuole

d)

Golgi body

36.

What organelle is labeled "W"?

a)

Nucleus

b)

Mitochondrion

c)

Ribosome

d)

Vacuole

37.

What organelle is labeled "Y"?

a)

Rough endoplasmic reticulum

b)

Mitochondrion

c)

Ribosome

d)

Lysosome

38.

What organelle is labeled "Z"?

a)

Vacuole

b)

Cell wall

c)

Golgi apparatus

d)

Rough endoplasmic reticulum

39.

What organelle is the arrow pointing at?

a)

Reticulum

b)

Golgi apparatus

c)

Smooth endoplasmic reticulum

d)

Rough endoplasmic reticulum

40.

Which organelle is labeled "5"?

a)

Rough endoplasmic reticulum

b)

Smooth endoplasmic reticulum

c)

Golgi apparatus

d)

Nucleus

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