Campbell Biology MCQs
Campbell Biology MCQs
Try to answer these Campbell Biology MCQs and check your understanding of the Campbell Biology subject. Scroll down and let's begin!
1: The natural human connection to nature and other forms of life is called __________.
A. Biophilia
B. Biodiversity
C. Bioremediation
D. Photophilia
2: The calvin cycle requires ______ and ______ from the light-dependent reactions in order to operate.
A. ATP . . . NADPH
B. Glucose . . . carbon dioxide
C. Electrons . . . NADH
D. Oxygen . . . carbon dioxide
3: The molecule camp directly activates __________.
A. Phosphodiesterase
B. Receptor tyrosine kinases
C. G proteins
D. Adenylyl cyclase
E. Protein kinase A
4: The multicellular condition of animals and fungi seems to have arisen _____.
A. Due to common ancestry.
B. By convergent evolution.
C. By inheritance of acquired traits.
D. By natural means, and is a homology.
5: Molecular systematics might include all of the following except ______.
A. DNA sequences
B. Nucleotide sequences
C. Amino acid sequences
D. Anatomical similarities
6: Researchers can use molecular homologies to __________.
A. Reveal the number of mutations in a particular sequence that has occurred in each species since
B. It consists of an ancestral species and some, but not all, of its descendants.
C. None of the listed assumptions should be made.
D. Nucleotide substitutions in a gene occur at a relatively constant rate.
7: The binomial system assigns to each organism a unique name that describes its __________.
A. Family and species
B. Body plan and habitat
C. Order and family
D. Evolutionary history
E. Genus and species
8: In yeast signal transduction, a yeast cell releases a mating factor, which ________.
A. It binds with a receptor protein that enters the nucleus and activates expression of specific genes.
B. Plant hormones frequently travel through the air as a gas.
C. Signal transduction molecules identified in distantly related organisms are similar.
D. Binds to receptors on the membranes of other types of yeast cells
9: Normally, only female cats have the tortoiseshell phenotype because _____.
A. A male inherits only one allele of the X-linked gene controlling hair color
B. One-half of the daughters of an affected father and a carrier mother could have this condition.
C. All of his daughters
D. None of these
10: Prior to the work of lyell and darwin, the prevailing belief was that earth is _____.
A. A few thousand yr old (6000) and unchanging
B. Characteristics acquired during an organisms life are not generally passed on through genes
C. In the wild mustard there are enough heritable variations to produce these varieties
D. None of these
11: Sutherland discovered that the signaling molecule epinephrine _____.
A. Brings about a decrease in levels of cAMP as a result of bypassing the plasma membrane
B. Causes lower blood glucose by binding to liver cells
C. Nteracts directly with glycogen phosphorylase
D. Elevates cytosolic concentrations of cyclic AMP
12: The decline of mpf activity at the end of mitosis is due to _____.
A. The accumulation of cyclin
B. Synthesis of DNA
C. The degradation of cyclin
D. Decreased synthesis of Cdk
E. The destruction of the protein kinase Cdk
13: During fertilization, the acrosomal contents _____.
A. Block polyspermy
B. Help propel more sperm toward the egg
C. Digest the protective jelly coat on the surface of the egg
D. Trigger the completion of meiosis by the sperm
14: Fossils found in strata reveal that ________.
A. Older strata carry fossils that differ greatly from living organisms
B. Geologic changes occur quickly on Earth
C. Unused body parts decrease in size
D. Innate drive to complexity of life
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Campbell Biology MCQs
