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Cell Unit Review
Test Description: Hope this works!!
Instructions: Answer all questions to get your test result.
1) DNA is responsible for inherited traits; those traits are make from a recipe held in the DNA. What macro-molecule does the DNA recipe make? (8)
A
proteins
B
lipids
C
nucleic acids
D
carbohydrates
2) What cell organelle allows diffusion of gases to occur?
A
ribosomes
B
cell membrane
C
cytoplasm
D
cell wall
3) If a freshwater fish was placed into a saltwater aquarium, the animal would appear to shrink. Why? (10)
A
the concentration of salt was higher on the outside of the fish than the inside of the fish
B
the concentration of salt was higher on the inside and it needed to take in water to balance it out.
C
there was more water outside the fish so it needed to be let out
4) Which of the following is a true statement concerning viruses? (11)
A
infect only animals and humans
B
they are the smallest of all cell types
C
composed of a protein coat and nucleic acids inside
D
they can be cured with antibiotics
5) Which of the following is not a type of protein? (12)
A
cell receptor
B
enzymes
C
glucose
D
hemoglobin
6) The more mitochondria a cell has, the more ____ it makes and uses (13)
A
DNA
B
proteins
C
lipids
D
energy
7) the movement of molecules from an area of high concentration to an area of low concentration is known as ______. (14)
A
dehydration reaction
B
active transport
C
hydrolysis
D
diffusion
8) What is the MAJOR function of a selectively permeable membrane? (15)
A
to keep the cells shape
B
to regulate energy production in the cell
C
to control materials entering and leaving the cell
D
to maintain a free flow of molecules
9) Choose the sentence below that is the best description of the function of phospholipids of a cell membrane.
A
they direct the production of proteins from DNA
B
they are responsible for assembling proteins
C
they are the main component that gives cell's their shape.
D
they speed up chemical reactions
10) An organ system is a group of organs that
A
are made up of similar cells
B
work together to perform a specific function
C
are made up of similar tissues
D
work together to perform all the functions in a multicellular organism
11) Cell specialization in multicellular organisms allows cell to
A
reproduce
B
respond to their environment
C
be less complex
D
perform different functions
12) The process by which organisms keep their internal conditions fairly constant is called:
A
Homeostasis
B
Evolution
C
Metabolism
D
Photosynthesis
13) Which of the following is NOT considered a safety procedure?
A
Follow the textbook directions exactly
B
Follow your teacher's directions
C
If in doubt about any part of an activity, trust your instinct
D
Read all the steps in your activity before doing it
14) A solution is a (an)
A
Evenly distributed mixture of two or more substances
B
Breaking of a chemical bond
C
Combination of two or more liquids
D
Chemical reaction
15) When salt is dissolved in water, water is the
A
Solute
B
Solution
C
Solvent
D
Reactant
16) Amino acid is to protein as
A
DNA is to RNA
B
Simple sugar is to starch
C
Fat is to lipid
D
Sugar is to fat
17) A monosaccharide is a
A
Nucleic acid
B
Carbohydrate
C
Protein
D
Lipid
18) Which of the following is NOT a function of proteins?
A
Control the rate of reactions and regulate cell processes
B
Help fight disease
C
Store and transmit heredity
D
Build tissues such as bone and muscle
19) When hydrogen and oxygen combine to form water, water is...
A
Both a product and a reactant
B
Reactant
C
Neither a product nor a reactant
D
A product
20) Which statement is true
A
Amino acids are made of proteins
B
Simple sugars are made of polysaccharides
C
Glycerol is made of fatty acids
D
RNA molecules are made of nucleotides
*select an answer for all questions
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