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Chapter 2 How Cells Function
Test Description: Biomolecules, photosynthesis, cellular respiration, osmosis, cell transport
Instructions: Answer all questions to get your test result.
1) Which three elements make up most of the human body?
A
oxygen, carbon, nitrogen
B
oxygen, carbon, calcium
C
carbon, hydrogen, nitrogen
D
oxygen, carbon, hydrogen
2) What two elements make up a water molecule?
A
carbon and oxygen
B
helium and oxygen
C
carbon and hydrogen
D
hydrogen and oxygen
3) What is the name of the process in which bonds between atoms are broken or new bonds are formed?
A
atomic reaction
B
physical reaction
C
chemical reaction
D
nucleic reaction
4) What biomolecule provides structure and stores energy in cells?
A
lipid
B
nucleic acid
C
carbohydrate
D
protein
5) What biomolecule is the main part of cell membranes?
A
carbohydrate
B
protein
C
lipid
D
nucleic acid
6) Which biomolecule holds the genetic information?
A
nucleic acid
B
carbohydrate
C
protein
D
lipid
7) Which biomolecule is made up of amino acids?
A
carbohydrate
B
lipid
C
protein
D
nucleic acid
8) How much of a cell is made up of water?
A
50 percent
B
30 percent
C
70 percent
D
90 percent
9) How many layers of lipids make up the cell membrane?
A
1
B
4
C
3
D
2
10) What process do plant cells use to change the energy in sunlight into the chemical energy in glucose?
A
cellular respiration
B
osmosis
C
diffusion
D
photosynthesis
11) What two processes are used by cells to release energy from glucose?
A
photosynthesis and fermentation
B
photosynthesis and cellular respiration
C
fermentation and diffusion
D
cellular respiration and fermentation
12) In which organelle does cellular respiration occur?
A
chloroplast
B
ribosome
C
mitochondrion
D
nucleus
13) Where does fermentation occur in the cell?
A
nucleus
B
chloroplast
C
mitochondrion
D
cytoplasm
14) What are two types of passive transport?
A
cytokinesis and diffusion
B
diffusion and osmosis
C
diffusion and fermentation
D
cytokinesis and osmosis
15) What is happening when water molecules move into and out of cells through a membrane?
A
fermentation
B
active transport
C
osmosis
D
cytokinesis
16) What is the process of using energy to move materials through a membrane?
A
diffusion
B
osmosis
C
active transport
D
passive transport
17) How does cell size affect how the cell moves materials into and out of the cell?
A
Smaller cells are more efficient.
B
Larger cells use more cytoplasm to be efficient.
C
Smaller cells are less efficient.
D
Larger cells have more places to move materials more efficiently.
18) What type of cells use cellular respiration?
A
plant cells only
B
animal cells only
C
neither plant nor animal cells
D
both plant and animal cells
19) Which of the following is a cellular process that releases energy that a cell can use?
A
osmosis
B
active transport
C
photosynthesis
D
cellular respiration
*select an answer for all questions
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