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WorksheetsAP Bio 1 Final Review
Total questions: 34
Worksheet time: 17mins
Name
Class
Date
1.
Once labor begins in childbirth, contractions increase in intensity and frequency until delivery. The increasing labor contractions of childbirth are an example of which type of regulation?
a)
a bioinformatic system
b)
negative feedback
c)
positive feedback
d)
enzymatic catalysis
2.
What are archaea?
a)
Bacteria-like organisms that can live only in extreme salt environments.
b)
Prokaryotes characterized as extremophiles that share some bacterial and some eukaryotic traits.
c)
Single-celled organisms that are killed by the application of antibiotics at certain concentrations.
d)
Primitive protist-like creatures possessing fewer than two chromosomes per cell.
3.
Which of the following is a correct sequence of levels in life's hierarchy, proceeding downward from an individual animal?
a)
nervous system, brain, nervous tissue, nerve cell
b)
organ system, nervous tissue, brain
c)
brain, organ system, nerve cell, nervous tissue
d)
organ system, tissue, molecule, cell
4.
A covalent bond is likely to be polar when
a)
the two atoms sharing electrons are equally electronegative.
b)
one of the atoms sharing electrons is much more electronegative than the other atom.
c)
oxygen is one of the two atoms sharing electrons.
d)
one of the atoms has absorbed more energy than the other atom.
5.
How many electron pairs are shared between carbon atoms in a molecule that has the formula C2H4?
a)
4
b)
2
c)
1
d)
0
6.
The reactivity of an atom arises from
a)
the potential energy of the valence shell.
b)
the energy difference between the s and p orbitals.
c)
the sum of the potential energies of all the electron shells.
d)
the existence of unpaired electrons in the valence shell.
7.
Which of the following takes place as an ice cube cools a drink?
a)
Kinetic energy in the drink decreases.
b)
Molecular collisions in the drink increase.
c)
A calorie of heat energy is transferred from the ice to the water of the drink.
d)
Evaporation of the water in the drink increases.
8.
Which of the following solutions would require the greatest amount of base to be added to bring the solution to neutral pH?
a)
black coffee at pH 5
b)
household bleach at pH 12
c)
gastric juice at pH 2
d)
vinegar at pH 3
9.
How many electron pairs does carbon share in order to complete its valence shell?
a)
1
b)
3
c)
4
d)
8
10.
Which of the following statements correctly describes cis–trans isomers?
a)
They have the same chemical properties.
b)
They have an asymmetric carbon that makes them mirror images.
c)
They have different molecular formulas.
d)
They have variations in arrangement around a double bond.
11.
Which of the groups shown above is a carbonyl functional group?
a)
A
b)
B
c)
C
d)
D
12.
Organic chemistry is currently defined as
a)
the study of compounds made only by living cells.
b)
the study of hydrocarbons.
c)
the study of carbon compounds.
d)
the study of vital forces.
13.
Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. How is lactose classified?
a)
as a disaccharide
b)
as a polysaccharide
c)
as a monosaccharide
d)
as a hexose
14.
Which of the following statements is true for the class of biological molecules known as lipids?
a)
They are made from glycerol, fatty acids, and phosphate.
b)
They are insoluble in water.
c)
They are made by dehydration reactions.
d)
They contain less energy than proteins and carbohydrates.
15.
What is the term used for a protein molecule that assists in the proper folding of other proteins?
a)
chaperonin
b)
tertiary protein
c)
enzyme protein
d)
renaturing protein
16.
Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?
a)
proteins
b)
lipids
c)
glycogen
d)
nucleic acids
17.
Tay–Sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large and complex lipids. Which cellular organelle must be involved in this condition?
a)
mitochondria
b)
membrane–bound ribosomes
c)
the lysosome
d)
the endoplasmic reticulum
18.
In a plant cell, DNA may be found
a)
only in the nucleus.
b)
in the nucleus, mitochondria, chloroplasts, and peroxisomes.
c)
in the nucleus, mitochondria, and chloroplasts.
d)
only in the nucleus and mitochondria.
19.
Plasmodesmata in plant cells are most similar in function to which of the following structures in animal cells?
a)
tight junctions
b)
gap junctions
c)
desmosomes
d)
extracellular matrix
20.
Which of the following contain the 9 + 2 arrangement of microtubules, consisting of nine doublets of microtubules surrounding a pair of single microtubules?
a)
centrioles only
b)
both motile cilia and primary (nonmotile) cilia
c)
both flagella and motile cilia
d)
both centrioles and basal bodies
21.
Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly?
a)
CO2
b)
an amino acid
c)
glucose
d)
starch
22.
When a plant cell, such as one from a peony stem, is submerged in a very hypotonic solution, what is likely to occur?
a)
The cell will burst.
b)
The cell membrane will lyse.
c)
The cell will become flaccid.
d)
The cell will become turgid.
23.
Which of the following factors would tend to increase membrane fluidity?
a)
a lower temperature
b)
a greater proportion of relatively large glycolipids compared with lipids having smaller molecular masses
c)
a relatively high protein content in the membrane
d)
a greater proportion of unsaturated phospholipids
24.
Which of the following statements describes enzyme cooperativity?
a)
Several substrate molecules can be catalyzed by the same enzyme.
b)
A substrate molecule bound to an active site of one subunit promotes substrate binding to the active site of other subunits.
c)
A substrate binds to an active site and inhibits cooperation between enzymes in a pathway.
d)
A multienzyme complex contains all the enzymes of a metabolic pathway.
25.
A series of enzymes catalyze the reaction X → Y → Z → A. Product A binds to the enzyme that converts X to Y at a position remote from its active site. This binding decreases the activity of the enzyme. What is substance X?
a)
a coenzyme
b)
the product
c)
an allosteric inhibitor
d)
a substrate
26.
Where does glycolysis take place in eukaryotic cells?
a)
cytosol
b)
mitochondrial matrix
c)
mitochondrial inner membrane
d)
mitochondrial intermembrane space
27.
Which of the following intermediary metabolites enters the citric acid cycle and is formed, in part, by the removal of a carbon (CO2) from one molecule of pyruvate?
a)
acetyl CoA
b)
glyceraldehydes–3–phosphate
c)
oxaloacetate
28.
Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?
a)
ATP and NADPH
b)
H2O and O2
c)
CO2 and glucose
d)
ADP, Pi, and NADP+
29.
The splitting of carbon dioxide to form oxygen gas and carbon compounds occurs during
a)
photorespiration.
b)
photosynthesis
c)
respiration
d)
neither photosynthesis nor respiration.
30.
In metabolic processes of cell respiration and photosynthesis, prosthetic groups such as heme and iron–sulfur complexes are encountered in components of the electron transport chain. What do they do?
a)
act as reducing agents
b)
both oxidize and reduce during electron transport
c)
transport protons within the mitochondria and chloroplasts
d)
donate electrons
31.
Compared with 31P, the radioactive isotope 32P has
a)
one more neutron.
b)
one more proton.
c)
a different atomic number.
d)
one more electron.
32.
In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by
a)
van der Waals interactions.
b)
nonpolar covalent bonds.
c)
polar covalent bonds.
d)
hydrogen bonds.
33.
If cells are grown in a medium containing radioactive 15N, which of these molecules will be labeled?
a)
fatty acids only
b)
nucleic acids only
c)
proteins only
d)
both proteins and nucleic acids
34.
Which type of organelle or structure is primarily involved in the synthesis of oils, phospholipids, and steroids?
a)
smooth endoplasmic reticulum
b)
mitochondrion
c)
contractile vacuole
d)
ribosome
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