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Ch 2, 7th Grade
Test Description: Cells
Instructions: Answer all questions to get your test result.
1) An instrument that makes small objects look larger
A
microscope
B
spectroscope
C
telescope
2) Who said that all plants are made of cells?
A
Theodor Schwann
B
Rudolf Virchow
C
Robert Hooke
D
Matthias Schleiden
3) The condition of things appearing larger than they are
A
classification
B
resolution
C
focus
D
magnification
4) Compound microscopes have more than one lens.
A
true
B
false
5) By using compound microscopes, scientists can obtain pictures of objects that are too small to be seen with electron microscopes.
A
false
B
true
6) Made mostly of a strong material called cellulose, this helps protect and support the cell.
A
nucleus
B
cell wall
C
lysosome
D
cell membrane
7) RIbosomes are made in the
A
mitochondria
B
endoplasmic reticulum
C
nucleolus
D
Golgi apparatus
8) Lysosomes...
A
capture energy from sunlight
B
make energy from food
C
all of the above
D
break down old cell parts
9) To be specialized means to
A
do all the jobs
B
do one kind of job
10) A group of similar cells that work together to perform a specific function
A
cell
B
tissue
C
organ
D
organ system
11) When two or more elements combine chemically, they form a
A
molecule
B
element
C
atom
D
compound
12) Energy-rich organic compounds made of the elements carbon, hydrogen, and oxygen. They can be sugar or starch
A
protein
B
nucleic acid
C
carbohydrates
D
lipids
13) Cells store energy from ___ for later use.
A
carbohydrates
B
nucleic acids
C
lipids
D
proteins
14) A group of proteins that speed up chemical reactions that are necessary for life
A
exocytosis
B
fats
C
carbohydrates
D
enzymes
15) Contain the instructions that cells need to carry out all the functions of life
A
carbohydrates
B
proteins
C
lipids
D
nucleic acids
16) How much of the human body is water?
A
2/5
B
1/3
C
3/4
D
2/3
17) Cell membranes are made of
A
a single layer of lipids
B
a single layer of carbohydrates
C
a double layer of lipids
D
a double layer of proteins
18) Which type of transport requires energy?
A
facilitated diffusion
B
diffusion
C
endocytosis
D
osmosis
19) Which type of transport requires energy?
A
plasmosis
B
osmosis
C
exocytosis
D
endocytosis
20) In active transport, molecules move from areas of low concentration to areas of high concentration.
A
false
B
true
*select an answer for all questions
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