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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
an organ
C
a tissue
D
a cell
2) Which structure’s main function is to produce food (sugar) in a plant?
A
root
B
leaf
C
seed
D
flower
3) An organism that contains chloroplasts is able to produce food by the process of
A
reproduction
B
photosynthesis
C
digestion
D
respiration
4) Which sequence lists the hereditary material found inside cells from the smallest unit to the largest unit?
A
chromosome → gene → nucleus
B
gene → chromosome → 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
worm
B
carrot
C
fly
D
rabbit
6) Which process is responsible for the growth and repair of human tissue?
A
germination
B
evolution
C
cell division
D
natural selection
7) A major function of a plant’s roots is to
A
release oxygen
B
take in water
C
produce flowers
D
transport carbon dioxide
8) Specialized cells protect the human body from disease-causing microbes by
A
producing chemicals that destroy the microbes
B
supplying oxygen and nutrients to the microbes
C
creating recessive genes in the microbes
D
dissolving wastes from the microbes
9) Abnormal cell division may result in
A
metamorphosis
B
cancer
C
tissue repair
D
disease prevention
10) A structure that carries a single unit of hereditary information is a
A
pedigree chart
B
tissue
C
sex cell
D
gene
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
the same kingdom and the same species
B
the same kingdom, but different species
C
different kingdoms and different species
D
different kingdoms, but the same species
12) A single human body cell typically contains thousands of
A
genes
B
chloroplasts
C
bacteria
D
nuclei
13) A green plant absorbs light. A frog eats flies. These are both examples of how organisms
A
excrete waste
B
escape predators
C
produce offspring
D
obtain energy
14) What are genes composed of?
A
DNA
B
traits
C
cells
D
offspring
15) In all of these organisms, which microscopic structures carry out the major life functions?
A
cells
B
chloroplasts
C
antennae
D
wings
*select an answer for all questions
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