The midpiece of the mature sperm contains mitochondria that provide metabolic energy for the trip to the egg. Fructose (simple sugar) is used as fuel by the sperm. From where is this fructose secreted?
A) prostate gland
B) seminal vesicles
C) bulbourethral gland
D) acrosome
B
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The stringent response in bacteria is transcriptional regulation coordinated with:
A. amino acid concentrations. B. availability of glucose. C. DNA damage. D. changes in pH.
In humans, where does lactose digestion occur?
a. stomach b. mouth c. small intestine d. pancreas
If cell walls or are not perforated,
a. xylem and phloem will not be able to function as vascular tissue. b. gas exchange will not occur across the stomata. c. water will not enter the epidermal cells of the root. d. the terminal bud will not cause the stem to elongate. e. all of these will occur.
Which statement regarding proteomics is true?
A) Proteomics is the study of protein interaction within a cell. B) Proteomics involves the complete analysis of prokaryote DNA. C) Proteomics is the systematic study of the full set of proteins encoded by a genome.