A membrane-bound electron carrier found in the electron transport systems of both aerobic respiration and photosynthesis
(A) Cytochrome
(B) FADH2
(C) NAD+
(D) NADP+
(E) Oxygen (O2)
Ans: (A) Cytochrome
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Cell membranes are characterized by the presence of:
a. triglycerides b. phospholipids c. unsaturated fats d. steroid hormones e. fatty acids
Glucose moves through a protein transporter down its concentration gradient into the cell. This is an example of ____
a. diffusion b. endocytosis c. exocytosis d. osmosis e. facilitated diffusion
Urochordates are odd chordates, as typically only the ____ show(s) the basic chordate characteristics
a. head end b. tail end c. adult d. larva e. egg
Heart Block is one type of electrical defect in the heart in which the electrical signal from the sinoatrial node to the relay point is delayed. Predict the effect of Heart Block on the cardiac cycle
A) The atria relax for a shorter period of time. B) The atria relax for a longer period of time. C) The ventricles relax for a shorter period of time. D) The ventricles relax for a longer period of time.