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Cellular Respiration
Photosynthesis
Cell Division
Heredity
Molecular
Genetics
100
What is the value of the alcohol fermentation pathway? a. It produces ATP. b. It produces lactate (or lactic acid) c. It produces ADP for the electron transport chain d. It replenishes CO2 for the dark reaction e. It replenishes NAD+ so that glycolysis can produce ATP
What is E. It replenishes NAD+ so that glycolysis can produce ATP.
100
Which of the following is the original source of all energy used by nearly all organisms on Earth? a. ATP b. Plants c. Heat d. The Sun e. Water
What is D. The Sun
100
If a cell has 46 chromosomes at the beginning of mitosis, than at anaphase there would be a total of a. 23 chromatids b. 23 chromosomes c. 46 chromosomes d. 46 chromatids e. 92 chromosomes
What is E. 92 chromosomes
100
Which of the following best expresses the concept of the word "allele"? a. Genes for wrinkled and yellow b. Genes for wrinkled and round c. The expression of a gene d. Phenotypes e. Mutations
What is B. Genes for wrinkled and round
100
All of the following enzymes are involved in DNA replication EXCEPT: a. Helicase b. DNA ligase c. DNA polymerase d. RNA polymerase e. Primase
What is D. RNA polymerase
200
Which of the following sequences correctly indicates the potential ATP yield of the indicated molecules from greatest ATP yield to least ATP yield? a. Pyruvate,ethanol, glucose, acetyl CoA b. Glucose, pyruvate, acetyl CoA, NADH c. Glucose, pyruvate, NADH, acetyl CoA d. Glucose, FADH2, acetyl CoA, pyruvate e. Glucose, FADH2, NADH, pyruvate
What is B. Glucose, pyruvate, acetyl CoA, NADH
200
Which of the following molecules contains the most stored energy? a. ADP b. ATP c. NADPH d. Glucose e. Starch
What is E. Starch
200
All of the following statements are true EXCEPT: a. Spindle fibers are composed largely of microtubules. b.Centrioles consist of nine triplets of microtubules arranged in a circle. c. All eukaryotic cells have centrioles. d. All eukaryotic cells have a spindle apparatus. e. Many of the microtubules in a spindle apparatus attach to kinetochores of chromosomes.
What is C. All eukaryotic cells have centrioles.
200
The ability to taste a chemical called PTC is inherited as an autosomal dominant allele. What is the probability that children descendent from parents both heterozygous for this trait can taste PTC? a. 0 b. 1/4 c. 1/2 d. 3/4 e. 1
What is D. 3/4
200
The end products of translation are? a. polypeptides b. amino acids c. lipids d. RNA e. DNA
What is A. polypeptides
300
All of the following statements about cellular respiration are true EXCEPT: a. Some of the products from the breakdown of proteins enter the Krebs Cycle. b. Some of the products from the breakdown of lipids enter the Krebs Cycle. c. If oxygen is present, water is produced. d.The purpose of oxygen in aerobic respiration is to donate the electrons that transform NAD+ + H+ to NADH. e. Lactate or ethanol is produced when oxygen is unavailable.
What is D. The purpose of oxygen in aerobic respiration is to donate the electrons that transform NAD+ + H+ to NADH.
300
Which of the following statements about photosynthetic pigments is true? a. There is only one kind of chlorophyll. b. Chlorophyll absorbs mostly green light. c. Chlorophyll is required in the Calvin Cycle. d. Chlorophyll is found in the membranes of thylakoids. e. P700 is a carotenoid pigment.
What is D. Chlorophyll is found in the membranes of thylakoids.
300
In typical cell divisions by mitosis and meiosis, all of the following contribute to genetic variation EXCEPT: a. Anaphase of mitosis b. Anaphase of meiosis 1 c. Fertilization d. Crossing over e. Random union of egg and sperm
What is A. anaphase of mitosis.
300
In fruit flies, dumpy wings are shorter and broader than normal wings. The allele for normal wings (D) is dominant to the allele for dumpy wings (d). Two normal winged flies were mated and produced 300 normal winged and 100 dumpy winged flies. The parents were probably a. DD and DD b. DD and Dd c. Dd and Dd d. Dd and dd e. dd and dd
What is C. Dd and Dd
300
All of the following combinations of nucleotides are examples of normal base-pairing EXCEPT: a. an adenine DNA nucleotide to a thymine DNA nucleotide b. a guanine DNA nucleotide to a cytosine DNA nucleotide c. a thymine RNA nucleotide to an adenine DNA nucleotide d. a cytosine RNA nucleotide to a guanine DNA nucleotide e. a uracil RNA nucleotide to an adenine DNA nucleotide
What is C. a thymine RNA nucleotide to an adenine DNA nucleotide.
400
All of the following processes release CO2 EXCEPT: a. the Krebs Cycle b. alcohol fermentation c. oxidative phosphorylation d. the conversion of pyruvate to ethanol e. the conversion of pyruvate to acetyl CoA
What is C. Oxidative Phosphorylation.
400
All of the following occur in cyclic photophosphorylation EXCEPT: a. Electrons move across the electron transport chain. b. Electrons in chlorophyll become excited. c. ATP is produced. d. Light energy is absorbed. e. NADPH is produced.
What is E. NADPH is produced.
400
Crossing over occurs during? a. Prophase of mitosis b. Prophase 1 of meiosis c. Prophase 2 of meiosis d. Prophase 1 and 2 of meiosis e. Prophase of mitosis and prophase 1 of meiosis
What is B. Prophase 1 of meiosis.
400
Suppose that in sheep, a dominant allele (B) produces black hair and a recessive allele (b) produces white hair. If you saw a black sheep, you would be able to identify a. its phenotype for hair color b. its genotype for hair color c. the genotypes for only one of its parents d. the genotypes for both of its parents e. the phenotypes for both of its parents
What is A. its phenotype for hair color.
400
The two stands of a DNA molecule are connected by a. hydrogen bonds between the codons and anticodons b. hydrogen bonds between the bases of one strand and the bases of the second strand c. hydrogen bonds between deoxyribose sugar molecules of one strand and deoxyribose molecules of the second strand d. covalent bonds between phosphate groups e. covalent bonds between nitrogen bases
What is B. hydrogen bonds between the bases of one strand and the bases of the second strand.
500
Chemiosmosis describes how ATP is generated from ADP. All of the following statements conform to the process as it occurs in mitochondria EXCEPT: a. H+ accumulates in the area between the membrane of the cristae and the outer membrane of the mitochondrion. b. a pH gradient is created across the cristae membranes. c. a voltage gradient is created across the cristae membranes. d. A proton gradient is created across the cristae membranes. e. Electrons flowing through the ATP synthase channel protein provide the energy to phosphorylate ADP to ATP.
What is E. Electrons flowing through the ATP synthase channel protein provide the energy to phosphorylate ADP to ATP.
500
How is C4 photosynthesis different from C3 photosynthesis? a. C4 plants require more water for photosynthesis than C3 plants do. b. C4 plants can photosynthesize better in lower levels of light than C3 plants. c. C4 plants are more efficient CO2 fixers than C3 plants. d. In C4 plants, chlorophyll P680 is more efficient than it is in C3 plants. e. Because C4 plants have special alkaloids (toxic substances), C4 plants are able to resist pests better than C3 plants.
What is C. C4 plants are more efficient CO2 fixers than the C3 plants.
500
If a cell has 46 chromosomes at the beginning of meiosis, then at anaphase 1 there would be a total of? a. 23 chromatids b. 23 chromosomes c. 46 chromosomes d. 46 chromatids e. 92 chromosomes
What is C. 46 chromosomes.
500
The inheritance of skin color in humans is an example of which of the following? a. Pleiotropy b. Codominance c. Epistasis d. Polygenic Inheritance E. Gene Linkage
What is D. Polygenic Inheritance
500
Which of the following is true? a. A messenger RNA molecule has the form of a double helix. b. Ribosomes contain RNA nucleotides and amino acids. c. The uracil nucleotide consists of the uracil nitrogen base, a deoxyribose sugar, and a phosphate group. d. When tRNA attaches to mRNA during translation, cytosine nucleotides base-pair with guanine nucleotides, and adenine nucleotides base-pair with thymine nucleotides e. In eukaryotes, DNA is manufactures in the nucleus and RNA is manufactured in the cytoplasm.
What is B. Ribosomes contain RNA nucleotides and amino acids.