The purpose of the Calvin cycle is to
a. produce sugars using CO2 as a carbon source.
b. recover electrons lost when water was split.
c. capture photons of light.
d. counteract increasing atmospheric CO2 concentrations (global warming).
e. generate O2 gas for cellular respiration.
A
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What is the monomer of the DNA molecule?
A. Polynucleotide B. Nucleotide C. Peptide D. Monosaccharide
Most species produce large numbers of offspring by sexual reproduction. This is important to the theory of natural selection because
A. each individual is unique and this diversity allows selecting agents to operate. B. selecting agents often lead to the death of large numbers of offspring. C. the diversity shown in the offspring makes it highly likely that some of them will be able to reproduce successfully. D. All of the choices are correct.
The event that leads from the haploid stage to the diploid stage in alternation of generations is ________.
a) meiosis b) mitosis c) fertilization d) germination
Fibrous proteins have extensive ________ structure, which allows them to be highly ordered and repetitive.
A) primary B) secondary C) tertiary D) quaternary E) multiprotein complex