DAT Biology Flashcards Questions With
Correct Answers
What happens to the free energy of a reaction if it is catalyzed by an enzyme? - Answer - The free energy
of an enzyme-catalyzed reaction is the same as the reaction without the enzyme.
What happens as the concentration of substrate is increased in an enzyme-catalyzed reaction? - Answer
- The reaction rate increases until most of the active sites are filled and then the reaction rate reaches a
plateau.
What is the optimal temperature for most enzymes in the body? - Answer - 37 degrees
Is glycolysis an aerobic or anaerobic process? - Answer - anaerobic
What are the possible products of fermentation? - Answer - ethanol or lactic acid
When does a cell rely on fermentation for its energy needs? - Answer - in an anaerobic (oxygen
deficient) environment
What is the net gain in ATP from cellular respiration? - Answer - Eukaryotes=36ATP; Prokaryotes=38ATP
What are the three stages of cellular respiration? - Answer - pyruvate decarboxylation, the citric acid
(Krebs) cycle, and the electron transport chain
One molecule of glucose requires how many turns of the citric acid cycle? - Answer - 2 cycles
How many ATP, NADH, and FADH2 are created in one turn of the citric acid cycle? - Answer - 1 ATP, 3
NADH, 1 FADH2
Where does glycolysis occur? - Answer - in the cytoplasm
, Where does the citric acid cycle occur? - Answer - in the inner mitochondrial matrix
What are the four stages of the cell cycle? - Answer - g1, s, g2, m
When do a cell's chromosomes replicate? - Answer - during the S stage of interphase
What is the order of the four stages of mitosis? - Answer - Prophase, Metaphase, Anaphase, Telophase
How many chromosones are in a human diploid cell? - Answer - 46 chromosones
How many chromosones are in a human haploid cell? - Answer - 23 chromosones
What are the four types of asexual reproduction? - Answer - binary fission, budding, mitosis,
parthenogenesis
In what phase of meiosis would one find a tetrad? - Answer - Prophase I
Name the structures of the male reproductive system. - Answer - (SEVEN UP) Seminiferous tubules,
Epididymis, Vas deferens, Ejaculatory duct, Uretha, Penis
Name the different structures of the female reproductive tract. - Answer - ovary, oviduct (fallopian
tube), uterus, cervix, vagina
Put in order the embryonic stages. - Answer - zygote, morula, blastula, gastrula, neurula
What are the 3 primary germ layers? - Answer - Ectoderm, endoderm and mesoderm
What structures arise from the ectoderm? - Answer - integument, lens of the eye, and nervous system
Correct Answers
What happens to the free energy of a reaction if it is catalyzed by an enzyme? - Answer - The free energy
of an enzyme-catalyzed reaction is the same as the reaction without the enzyme.
What happens as the concentration of substrate is increased in an enzyme-catalyzed reaction? - Answer
- The reaction rate increases until most of the active sites are filled and then the reaction rate reaches a
plateau.
What is the optimal temperature for most enzymes in the body? - Answer - 37 degrees
Is glycolysis an aerobic or anaerobic process? - Answer - anaerobic
What are the possible products of fermentation? - Answer - ethanol or lactic acid
When does a cell rely on fermentation for its energy needs? - Answer - in an anaerobic (oxygen
deficient) environment
What is the net gain in ATP from cellular respiration? - Answer - Eukaryotes=36ATP; Prokaryotes=38ATP
What are the three stages of cellular respiration? - Answer - pyruvate decarboxylation, the citric acid
(Krebs) cycle, and the electron transport chain
One molecule of glucose requires how many turns of the citric acid cycle? - Answer - 2 cycles
How many ATP, NADH, and FADH2 are created in one turn of the citric acid cycle? - Answer - 1 ATP, 3
NADH, 1 FADH2
Where does glycolysis occur? - Answer - in the cytoplasm
, Where does the citric acid cycle occur? - Answer - in the inner mitochondrial matrix
What are the four stages of the cell cycle? - Answer - g1, s, g2, m
When do a cell's chromosomes replicate? - Answer - during the S stage of interphase
What is the order of the four stages of mitosis? - Answer - Prophase, Metaphase, Anaphase, Telophase
How many chromosones are in a human diploid cell? - Answer - 46 chromosones
How many chromosones are in a human haploid cell? - Answer - 23 chromosones
What are the four types of asexual reproduction? - Answer - binary fission, budding, mitosis,
parthenogenesis
In what phase of meiosis would one find a tetrad? - Answer - Prophase I
Name the structures of the male reproductive system. - Answer - (SEVEN UP) Seminiferous tubules,
Epididymis, Vas deferens, Ejaculatory duct, Uretha, Penis
Name the different structures of the female reproductive tract. - Answer - ovary, oviduct (fallopian
tube), uterus, cervix, vagina
Put in order the embryonic stages. - Answer - zygote, morula, blastula, gastrula, neurula
What are the 3 primary germ layers? - Answer - Ectoderm, endoderm and mesoderm
What structures arise from the ectoderm? - Answer - integument, lens of the eye, and nervous system
