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Cell Theory
Test Description: 8th grade review
Instructions: Answer all questions to get your test result.
1) A group of cells working together to perform a certain function is called
A
an organism
B
a tissue
C
an organ
D
a cell
2) Which structure’s main function is to produce food (sugar) in a plant?
A
leaf
B
flower
C
seed
D
root
3) An organism that contains chloroplasts is able to produce food by the process of
A
photosynthesis
B
digestion
C
reproduction
D
respiration
4) Which sequence lists the hereditary material found inside cells from the smallest unit to the largest unit?
A
gene → chromosome → nucleus
B
chromosome → gene → nucleus
C
chromosome → nucleus → gene
D
gene → nucleus → chromosome
5) A student viewing a cell with a microscope observes a cell wall, a cell membrane, and a nucleus. The presence of these structures indicates that the student is looking at a cell from a
A
rabbit
B
fly
C
worm
D
carrot
6) Which process is responsible for the growth and repair of human tissue?
A
evolution
B
cell division
C
germination
D
natural selection
7) A major function of a plant’s roots is to
A
produce flowers
B
take in water
C
transport carbon dioxide
D
release oxygen
8) Specialized cells protect the human body from disease-causing microbes by
A
dissolving wastes from the microbes
B
producing chemicals that destroy the microbes
C
creating recessive genes in the microbes
D
supplying oxygen and nutrients to the microbes
9) Abnormal cell division may result in
A
metamorphosis
B
tissue repair
C
disease prevention
D
cancer
10) A structure that carries a single unit of hereditary information is a
A
sex cell
B
pedigree chart
C
gene
D
tissue
11) Dogs and cats are animals that have many similar body structures but they do not mate with each other. These two animals are classified in
A
different kingdoms, but the same species
B
the same kingdom and the same species
C
the same kingdom, but different species
D
different kingdoms and different species
12) A single human body cell typically contains thousands of
A
bacteria
B
chloroplasts
C
genes
D
nuclei
13) A green plant absorbs light. A frog eats flies. These are both examples of how organisms
A
obtain energy
B
escape predators
C
produce offspring
D
excrete waste
14) What are genes composed of?
A
offspring
B
DNA
C
traits
D
cells
15) In all of these organisms, which microscopic structures carry out the major life functions?
A
wings
B
cells
C
antennae
D
chloroplasts
*select an answer for all questions
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