The lipid group that is the major component of cell membranes is the ________.
A. triglycerides
B. steroids
C. waxes
D. prostaglandins
E. phospholipids
Answer: E
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There are three giant redwoods in California that a person can actually drive through. Imagine that you look up right when you are in the middle of driving through the tree and continue looking up until you exit out the other side
What order of structures would you see as you were driving through the tree? A. pith, phloem, xylem, vascular cambium, cork B. pith, vascular cambium, phloem, xylem, cork C. pith, xylem, phloem, vascular cambium, cork D. pith, xylem, vascular cambium, phloem, cork E. pith, phloem, vascular cambium, xylem, cork
Pseudohypertrophic muscular dystrophy is a human disorder that causes gradual deterioration of the muscles. Only boys are affected, and they are always born to phenotypically normal parents
Due to the severity of the disease, the boys die in their teens. Is this disorder likely to be caused by a dominant or recessive allele? Is its inheritance sex-linked or autosomal? A) dominant, sex-linked B) recessive, autosomal C) recessive, sex-linked D) incomplete dominant, sex-linked
Which of the following processes likely depends on the activity of a proton pump? Pick the best answer!
(a) Sugar uptake (b) Osmosis (c) Uptake of nitrate (d) One of the above (e) Two of the above
In what way are the senses of taste and smell different?
A. Taste buds contain cilia while olfactory cells contain microvilli. B. Taste depends on a "weighted average" of all the taste messages, while smell depends on the signature of olfactory cells stimulated. C. The sensation of taste occurs in the spinal cord, while the sensation of smell occurs in the cerebral cortex. D. There are hundreds of different tastes but only five different smell families. E. Taste buds are modified neurons and olfactory cells contain a pore with supporting cells and elongated cells.