C.elegans is a model organism and was the first eukaryotic organism to have its genome sequenced. The free-living nematode is often used in laboratories investigating reproduction, particularly egg-laying
There are 16 muscles, 2 types of neurons, and multiple receptors involved in the process of laying eggs in C.elegans, and there are mutations in all of those structures for the study of the process. One particular mutation that prevents the laying of eggs by the worm is rescued by the neurotransmitter, serotonin. That rescue suggests that this mutation is most likely in which of the following? A) a post-synaptic neuron involved in egg-laying
B) a pre-synaptic neuron involved in egg-laying
C) a receptor for serotonin on cells needed for egg-laying
D) one of the muscles needed for egg-laying
A
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________ anaphylaxis is referred to as an atopic reaction.
Fill in the blank(s) with the appropriate word(s).
The two photosystems of light reactions are
designated a. type 1 and type 2. b. type I and type II. c. photosystem A and photosystem B. d. photosystem 680 and photosystem 700. e. photosystem I and photosystem II
Matching. Choose the one most appropriate
statement. 1. ___ cyclic pathway of ATP formation 2. ___ noncyclic pathway of ATP formation 3. ___ carbon dioxide fixation 4. ___ the PGA to PGAL conversion 5. ___ the formation of glucose A. uses ribulose bisphosphate; produces PGA B. uses ATP and NADPH C. uses two PGAL D. produces ATP and NADPH E. uses an electron transfer chain to produce ATP
Neurotransmitters always cause depolarization of the postsynaptic membrane
Indicate whether the statement is true or false