Fatty acids must first be converted to which substance before they can enter the citric acid cycle?
A. PGAL
B. pyruvate
C. acetyl-CoA
D. amino acids
E. glucose
Answer: C
Biology & Microbiology
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Situated in the center of the flower, the structure in which female gametophytes form is called the ____
a. petal b. carpel c. stamen d. anther e. sepal
Biology & Microbiology
Which of the following represents the reversible reaction of ATP formation?
a. ATP + H2O ? ADP + Pi b. ADP + ATP ? free energy + Pi c. ADP + Pi + free energy ? ATP + H2O d. Free energy + H2O + Pi ? ATP
Biology & Microbiology
Which of the following is a change to the nucleotides in a segment of DNA that codes for a protein?
a. Proto-oncogenes b. Tumor suppressor genes c. Gene mutations d. Negative regulators
Biology & Microbiology
Elevated blood pressure stimulates specialized cells in the heart to release antidiuretic hormone, a
peptide hormone that inhibits renin release
Indicate whether the statement is true or false.
Biology & Microbiology