Curare is a drug that selectively blocks receptors for:
A) serotonin
B) GABA
C) acetylcholine
D) norepinephrine
Answer: C) acetylcholine
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Match the following items with the correct phrases.
_______1. The end product of ____________________ is a messenger RNA molecule. _______2. Combining two monosaccharides to form a disaccharide is an example of ____________________. _______3. James Watson and Francis Crick were the first to publish an article describing ____________________. _______4. The end product of ____________________ is a protein. _______5. Breaking the bond in a disaccharide to produce two monosaccharides is an example of ____________________. a. a dehydration synthesis reaction b. DNA replication c. a hydrolysis reaction d. transcription e. translation
Sequences that contain information about the stability of a transcript are found in the
A) 5' UTR. B) coding sequence. C) 3' UTR. D) leading strand. E) lagging strand.
Why is the dialysate continually replaced in hemodialysis?
A. because it is lost by urination B. because it biodegrades rapidly C. because it is easily infected D. because it enters the body and is absorbed E. to maintain a favorable concentration gradient with the blood
How do guard cells differ from other epidermal
cells?
a. guard cells do not have a waxy cuticle b. guard cells are more than one cell thick c. guard cells are photosynthetic d. guard cells are only found on the upper epidermal surface of a leaf e. all of these are differences between guard cells and other epidermal cells