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Domain 1 Review
Test Description: Domain 1: Macromolecules and Enzymes
Instructions: Answer all questions to get your test result.
1) Both lipids and carbohydrates are important in animal cells because both:
A
store energy
B
contain nitrogen
C
provide insulation
D
form cell walls
2) What complex macromolecule stores and communicates genetic information?
A
nucleic acids
B
carbohydrates
C
proteins
D
lipids
3) Which of the following statements about enzymes is not true?
A
enzymes work best at a specific pH
B
all enzymes have the same shape as their substrates
C
enzymes are proteins
D
the shape of an enzyme allows it to do its job
4) Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water permeable. This waxy coating is which of the following types of organic molecules?
A
carbohydrates
B
nucleic acids
C
lipids
D
proteins
5) Enzyme activity can be affected by the following:
A
all of the above
B
temperature
C
pH
D
other chemicals
6) Which of the following types of molecules has a primary function of providing a rapidly available energy source for living things?
A
amino acids
B
fats
C
proteins
D
carbohydrates
7) Which of the following types of molecules provides building blocks for tissues, transports other molecules, and helps to regulate certain reactions in the human body?
A
lipids
B
fats
C
proteins
D
carbohydrates
8) Athletes are often concerned with how much protein they need in their diets because of the requirement of protein for growing muscles. What are the building blocks of proteins?
A
monosaccharides
B
nucleotides
C
amino acids
D
nitrates
9) Amylase is an enzyme found in saliva that assists in the reaction that breaks down starch. How does amylase affect the reaction?
A
it changes the speed of the reaction
B
it changes the temperature of the reaction
C
it changes the products of the reaction
D
it changes the pH of the reaction
10) Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water permeable. This waxy coating is which of the following types of organic molecules?
A
lipids
B
carbohydrates
C
proteins
D
nucleic acids
11) Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?
A
lipids
B
proteins
C
steroids
D
glucose
12) If a blood cell is placed in a solution and water enters and exits the cell at the same speed the solution is said to be...
A
isotonic
B
distilled water
C
hypertonic
D
hypotonic
13) Which of the following organelles contains digestive enzymes?
A
vacuole
B
lysosome
C
Golgi Apparatus
D
Nucleus
14) Which of the following are capable of converting light energy into chemical energy?
A
peroxisomes
B
mitochondria
C
Leucoplasts
D
chloroplasts
15) Which of the following relationships between cell structures and their respective functions is correct?
A
ribosomes: secretion
B
lysosomes: formation of ATP
C
cell wall: support, protection
D
chloroplasts: chief site of cellular respiration
16) Which of the follwoing is present in a prokaryotic cell?
A
mitochondrion
B
nuclear envelope
C
chloroplast
D
cell membrane
17) An organism with a cell wall would have the most difficulty going through which process?
A
exocytosis
B
active transport
C
diffusion
D
osmosis
18) Which of the follwoing processes includes all of the others?
A
facilitated diffusion
B
transport of an ion down its concentration gradient
C
osmosis
D
passive transport
19) Which organelle converts sugars into energy?
A
ribosome
B
mitochondria
C
lysosome
D
chloroplast
20) A plant cell is placed in a hypotonic solution. What will most likely happen to the plant cell?
A
It will swell
B
It will wilt
C
it will stay the same
D
It will shrink
*select an answer for all questions
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