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