Tennessee Science Grade 7

Section 3: Energy for Life

Self-Check Quiz - English

1
You use a washing machine to get dirt off of your clothes. The machine is like __________ in cells.
A)proteins
B)enzymes
C)glucose
D)carbon
2
Metabolism is the total of all __________ in an organism.
A)chemical reactions
B)organic compounds
C)ions
D)fats
3
Plants make food through __________.
A)osmosis
B)atoms
C)photosynthesis
D)nitrogen
4
Why are plants green?
A)They contain marrow.
B)They contain chlorophyll.
C)They contain milk.
D)They contain eggs and sperm.
5
Which of these processes releases energy?
A)diffusion
B)fermentation
C)exocytosis
D)respiration
6
Which of these is a waste product of fermentation?
A)DNA
B)water
C)carbohydrates
D)lactic acid
7
What is produced as a result of respiration?
A)sugars and oxygen
B)carbon dioxide and water
C)phosphorous and starch
D)hydrochloric acid and sodium
8
Organisms that cannot make their own food are called __________.
A)mixtures
B)consumers
C)biodegradables
D)nucleic acids
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