Depending on your body's needs, acetyl-CoA is either directed into the Krebs cycle or ________.
A. sent to the electron transport chain
B. channeled into fat synthesis
C. sent back to glycolysis
D. fermented into alcohol
E. fermented to lactic acid
Answer: B
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A classification system based on mutual similarity that involves comparing as many characteristics as possible is called a ________ system.
A. phenetic B. determinative systematic C. phylogenetic D. phyletic
A cell is considered _______ if two of each type of chromosome are present inside the cell.
Fill in the blank(s) with the appropriate word(s).
For IgG, the antigen binding site is found on the __________.
A) variable regions of two heavy chains B) variable region of a heavy chain and the variable region of a light chain C) Fc region D) variable regions of two light chains E) constant region of both the heavy chain and the light chain
The organelle that extracts energy in food to produce ATP energy is the
A) chloroplast. B) mitochondrion. C) nucleus. D) cytoplasm. E) ribosome.