Dna Coa
Multiple choice bio questions....best answer will be given...?
1. At which stage of photosynthesis is light involved most directly?
a. reduction of NADP+ to NADPH2
b. Chemiosmosis
c. the synthesis of chlorophyll
d. the photoactivation of chlorophyll
2. During which process are oxygen molecules directly involved during cellular respiration?
a. glycolysis
b. krebs cycle
c. oxidation of pyruvate to acetyl CoA
d. accepting electrons at the end of the electron transport chain
3. Where is an anti-codon located
a. tRNA
b. mRNA
c. DNA
d. Ribosomes
4. In the structure of DNA, what binds with cytosine?
a. deoxyribose
b. ribose
c. thymine
d. adenine
1) d
Look up Photosystem II for more info on this.
2) d
Cellular respiration involves the electron transport chain, and at the end of the chain oxygen is an electron receiver.
3) a
tRNA is the transfer RNA, it contains the anti-codons for amino acids.
4) a
I think a more appropriate answer here could have been guanine, but cytosine is attached to the deoxyribose strand of DNA.
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