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WorksheetsUnit 2 Review: Cells & Biomolecules
Total questions: 44
Worksheet time: 35mins
Name
Class
Date
1.
Which of the following is the smallest unit of life that can carry out all life functions?
a)
the mitochondria
b)
the vacuoles
c)
the nucleus
d)
the cell
2.
Which structures are found in every living cell?
a)
cell membrane and cytoplasm
b)
chloroplasts and mitochondria
c)
a cell wall and nucleus
d)
chloroplasts and cell wall
3.
Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?
a)
cell membrane
b)
cytoplasm
c)
nucleus
d)
vacuole
4.
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
5.
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
6.
What is one basic function of the vacuoles?
a)
circulating oxygen
b)
producing food
c)
controlling cell processes
d)
storing water
7.
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
8.
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
9.
What is the function of a cell wall?
a)
to protect and support the cell
b)
to perform different functions in each cell
c)
to prevent water from passing through it
d)
to prevent oxygen from entering the cell
10.
In what part of the plant cell does the process of photosynthesis take place?
a)
nucleus
b)
mitochondria
c)
chloroplasts
d)
vacuoles
11.
Starch and water molecules in potato cells are stored in what organelle?
a)
mitochondria
b)
nucleus
c)
cell wall
d)
vacuole
12.
Cells with a nucleus and membrane-bound organelles are called ____________________.
a)
prokaryotes
b)
eukaryotes
c)
bacteria
d)
protists
13.
Which of the following is not part of the cell theory?
a)
cells must contain DNA
b)
all living things are made from cells
c)
cells can only come from other cells
d)
cells are the basic unit of life
14.
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
15.
A gel-like fluid in which many different organelles are found.
a)
cell membrane
b)
nucleus
c)
organelle
d)
cytoplasm
16.
The network of passageways carries materials from one part of the cell to another.
a)
endoplasmic reticulum
b)
golgi bodies
c)
vacuole
d)
cell
17.
This organelle receives materials from the endoplasmic reticulum and sends them to other parts of the cell.
a)
ribosomes
b)
mitchondria
c)
cytoplasm
d)
golgi bodies
18.
A tiny cell structure that carries out a specific function within a cell.
a)
organelle
b)
cell
c)
nucleus
d)
ribosomes
19.
These small structures function as factories to produce proteins.
a)
mitochondria
b)
golgi body
c)
endoplasmic reticulum
d)
ribosomes
20.
What is on the same level of organization as the brain?
a)
stomach
b)
nervous system
c)
protein molecule
d)
flower
21.
If you look under the microscope as a piece of muscle TISSUE, you will see...
a)
cells working together
b)
chloroplasts
c)
an organ system
d)
plant cells
22.
An Amoeba is a unicellular, animal-like protist that lives in ponds and streams. According to cell theory, where did this cell come from?
a)
another pre-existing amoeba cell.
b)
energy from sun that allowed the protist to reproduce.
c)
a multicellular organism.
d)
the nonliving environment.
23.
What tool do you use to view the cells?
a)
metric ruler
b)
centrifuge
c)
microscope
d)
telescope
24.
Rocks are not living because
a)
they never move
b)
they aren't needed for humans
c)
they are not made of cells
d)
they don't break down
25.
An organism made of one cell is called
a)
unicellular organism
b)
multicellular organism
26.
How are unicellular organisms different from multicellular organisms?
a)
There are no differences.
b)
They are made of many cells.
c)
They are only classified as prokaryotes.
d)
They are made of only one cell.
27.
What biomolecule do enzymes belong to?
a)
Carbohydrate
b)
Lipid
c)
Nucleic Acid
d)
Protein
28.
Which biomolecule is found in pasta and bread?
a)
Lipid
b)
Protein
c)
Nucleic Acid
d)
Carbohydrate
29.
Which biomolecule is found in fats, oils, and waxes and is a source of long-term energy?
a)
Proteins
b)
Nucleic Acid
c)
Lipids
d)
Carbohydrate
30.
What is the function of a nucleic acid?
a)
Stores genetic information
b)
Stores energy
c)
Quick source of energy
d)
Builds structures
31.
Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?
a)
Carbohydrate
b)
Lipid
c)
Protein
d)
Nucleic acid
32.
Which biomolecule is this a picture of?
a)
Protein
b)
Nucleic Acid
c)
Lipid
d)
Carbohydrate
33.
Which biomolecule is made of nucleotides and contain you DNA?
a)
Carbohydrate
b)
Lipids
c)
Protein
d)
Nucleic Acid
34.
Which biomolecule helps form muscles?
a)
Nucleic Acid
b)
Carbohydrate
c)
Protein
d)
Lipids
35.
Which biomolecule is responsible for insulation and energy storage?
a)
Protein
b)
Nucleic Acid
c)
Lipid
d)
Carbohydrate
36.
Which biomolecule has sugars and starches?
a)
Lipids
b)
Proteins
c)
Carbohydrates
d)
Nucleic Acid
37.
What type of molecule is this?
a)
Nucleic acid
b)
Protein
c)
Carbohydrate
d)
Lipid
38.
What elements are common to all 4 biomolecules?
a)
Carbon, hydrogen, nitrogen
b)
Carbon, Nitrogen, Phosphorus
c)
Carbon, Hydrogen, Oxygen
d)
Carbon, Hydrogen, Phosphorus
39.
A monomer is ...
a)
a single atom
b)
a building block for polymers
c)
a single element
d)
is an inorganic molecule
40.
What is the purpose of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
41.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
42.
Which of the following shows biological systems from least to most complex?
a)
Cells, tissue, organ, organ system
b)
Tissue, cells, organ, organ system
c)
Organ system, cells, organism, tissue
d)
Organ system, organ, tissue
43.
Which of the following is the best description of an organ system?
a)
The human heart and lungs
b)
A group of similar cells working together to complete a specific task
c)
The structure of an organ
d)
A group of organs working together to complete a specific task
44.
Why are there so many different types of cells in multicellular organisms?
a)
Humans are relatively big
b)
Humans are heterotrophs
c)
Cells in multicellular organisms are specialized to complete different tasks or functions within the organism
d)
Cells in multicellular organisms are similar and complete only the same tasks or functions within the organism
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