How many pairs of autosomes are in a typical human karyotype?
A. 8
B. 22
C. 23
D. 46
E. 92
Answer: B
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Match the organelle on the left with the appropriate property on the right.
A) transport to various layers of Golgi B) mediates transfer of lysosomal enzymes into a lysosome C) found in plant endosperm or cotyledons D) degradation of damaged organelles E) biosynthesis of steroid hormones F) binds vesicle to target membrane G) transport of proteins from ER to Golgi H) sorting proteins for export or to specific organelles I) ? oxidation of fatty acids J) transport from Golgi to plasma membrane 1 peroxisomes 2 smooth endoplasmic reticulum 3 lysosomes 4 Golgi apparatus 5 transition vesicle 6 shuttle vesicle 7 secretory vesicle 8 glyoxysomes 9 tethering protein 10 mann
Oxidative phosphorylation is the process by which ____
a. high energy NADH is made to supply the cell with its needed energy b. a final electron acceptor is used indirectly to facilitate the production of ATP c. ATP is made using high energy intermediates of cellular respiration d. specific enzymes are regulated to control cellular respiration e. NAD+ is regenerated to allow glycolysis to continue
__________ secrete products such as sweat or
digestive enzymes through ducts.
Which carbon(s) in the pentose sugar in RNA and DNA is/are covalently linked in a phosphodiester bond?
a. the 1' carbon b. the 2' and 5' carbons c. the 1' and 3' carbons d. the 3' and 5' carbons