Thursday
October 2, 2014

Homework Help: Biology

Posted by Tommy on Friday, September 10, 2010 at 12:41pm.

Which of the following is not a terminal electron acceptor in anaerobic respirations?

a)nitrite
b)carbon dioxide
c)hydrogen sulfide
d)sulfate
e)nitrate

Question 2

Which of the following is not an end product of fermentation?

a)pyruvate
b)none of the answers are correct
c)butanol
d)carbon dioxide
e)acetone

Question 3

Chorismate is used in a branched pathway to synthesize

a)polyketide antibiotics.
b)fatty acids.
c)purines and pyrimidines.
d)tetrapyrroles.
e)aromatic amino acids.

Question 4

Hydrolysis of ATP with the release of pyrophosphate is the driving force of which of the following reactions?

a)only RNA and DNA synthesis
b)all of the answers are true
c)RNA synthesis
d)DNA synthesis
e)aminoacylation of tRNA

Question 5

The acetyl-group of acetyl-CoA condenses with oxaloacetate to form citrate, a component in the TCA cycle that contains how many carbons?

a)2
b)5
c)4
d)6
e)3

I only think the first one is HS. I have no clue and can't find the answers to these in my book. Can I get some help. Thank You

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