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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
carbohydrates
C
nucleic acids
D
lipids
2) What cell organelle allows diffusion of gases to occur?
A
cell wall
B
cytoplasm
C
cell membrane
D
ribosomes
3) If a freshwater fish was placed into a saltwater aquarium, the animal would appear to shrink. Why? (10)
A
there was more water outside the fish so it needed to be let out
B
the concentration of salt was higher on the inside and it needed to take in water to balance it out.
C
the concentration of salt was higher on the outside of the fish than the inside of the fish
4) Which of the following is a true statement concerning viruses? (11)
A
they can be cured with antibiotics
B
infect only animals and humans
C
composed of a protein coat and nucleic acids inside
D
they are the smallest of all cell types
5) Which of the following is not a type of protein? (12)
A
glucose
B
enzymes
C
cell receptor
D
hemoglobin
6) The more mitochondria a cell has, the more ____ it makes and uses (13)
A
DNA
B
energy
C
lipids
D
proteins
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
diffusion
C
active transport
D
hydrolysis
8) What is the MAJOR function of a selectively permeable membrane? (15)
A
to maintain a free flow of molecules
B
to regulate energy production in the cell
C
to keep the cells shape
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 direct the production of proteins from DNA
C
they are responsible for assembling proteins
D
they are the main component that gives cell's their shape.
10) An organ system is a group of organs that
A
work together to perform all the functions in a multicellular organism
B
are made up of similar cells
C
work together to perform a specific function
D
are made up of similar tissues
11) Cell specialization in multicellular organisms allows cell to
A
perform different functions
B
reproduce
C
be less complex
D
respond to their environment
12) The process by which organisms keep their internal conditions fairly constant is called:
A
Photosynthesis
B
Evolution
C
Metabolism
D
Homeostasis
13) Which of the following is NOT considered a safety procedure?
A
Follow the textbook directions exactly
B
Read all the steps in your activity before doing it
C
Follow your teacher's directions
D
If in doubt about any part of an activity, trust your instinct
14) A solution is a (an)
A
Evenly distributed mixture of two or more substances
B
Combination of two or more liquids
C
Breaking of a chemical bond
D
Chemical reaction
15) When salt is dissolved in water, water is the
A
Solution
B
Reactant
C
Solute
D
Solvent
16) Amino acid is to protein as
A
Simple sugar is to starch
B
Fat is to lipid
C
Sugar is to fat
D
DNA is to RNA
17) A monosaccharide is a
A
Lipid
B
Nucleic acid
C
Protein
D
Carbohydrate
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
Reactant
B
Neither a product nor a reactant
C
A product
D
Both a product and a reactant
20) Which statement is true
A
RNA molecules are made of nucleotides
B
Simple sugars are made of polysaccharides
C
Amino acids are made of proteins
D
Glycerol is made of fatty acids
*select an answer for all questions
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