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Grade 7 Cells Final Review A
Test Description: Review
Instructions: Answer all questions to get your test result.
1) What is the total magnification of a microscope with two lenses when one lens has a magnification of 15, and the other lens has a magnification of 30?
A
300
B
150
C
45
D
450
2) What is the function of a cell membrane?
A
to form a hard outer covering for the cell
B
to control what enters and leaves the cell
C
to support the cell
D
to perform different functions in each cell
3) Specialized cells are found only in
A
single-celled organisms
B
bacteria.
C
animals
D
many-celled organisms.
4) Which term refers to the movement of molecules from an area of higher concentration to an area of lower concentration?
A
diffusion
B
collision
C
concentration
D
active transport
5) What is the function of a cell wall?
A
to prevent water from passing through it
B
to prevent oxygen from entering the cell
C
to protect and support the cell
D
to perform different functions in each cell
6) What are the products of photosynthesis?
A
oxygen and water
B
oxygen and sugars
C
carbon dioxide and sugars
D
carbon dioxide and water
7) How are photosynthesis and respiration related?
A
They have the same equations.
B
They both produce oxygen.
C
They have opposite equations.
D
They both produce carbon dioxide.
8) Mitosis is the stage of the cell cycle during which
A
the cell’s DNA is replicated.
B
the cell’s cytoplasm divides.
C
the cell divides into two new cells.
D
the cell’s nucleus divides into two new nuclei.
9) Factors that control traits are called
A
parents
B
recessives
C
genes
D
purebreads
10) An organism’s physical appearance is its
A
phenotype
B
genotype
C
heterozygous
D
codominance
*select an answer for all questions
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