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