A single atom of carbon may form up to
__________ covalent bonds with other atoms.
a. 2
b. 3
c. 4
d. 5
e. 6
Answer: c
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The first evidence that the vasodilatory signal molecule was produced by ____ was reported in 1980
a. nitric oxide b. endothelial cells c. CO2 d. cardiac muscle cells e. platelets
The term "critical thinking" is best summarized by which of the following statements? a. Critical thinking describes a pattern of negative and pessimistic thought often observed in depressed people
b. Critical thinking describes the skill of discerning which aspect of a problem should be solved first. c. Critical thinking means looking for flaws in a person or argument. d. A person who thinks critically judges information before accepting it.
A plant is treated with a chemical that blocks the flow of electrons between photosystem II and photosystem I, such that protons are not transported from the stroma into the thylakoid compartment. What is the effect of this chemical on photosynthesis?
A. a decreased proton gradient will cause less ATP to be produced from the light reactions. B. the increased number of protons will be directly used in the thylakoid to produce glucose. C. an increased proton gradient will provide the energy needed to produce ATP from the light reactions. D. the increased proton gradient will be used to make NADPH for the Calvin cycle.
molecule
What will be an ideal response?