Biochemistry Answers

Draw the structure of the tripeptide Ala-Met-Gln in the ionic form that predominates at pH 7. Show all atoms (including hydrogens) as well as any charges as necessary.

What structural characteristics are common to all the amino acids that are found in mammalian proteins?

what is cellular resperation?

7. Which amino acid is essential but, in some organisms, can be made from Glu?

a. Arg

b. Met

c. Thr

d. Lys

e. Asp

Differentiate between passive and active transport?

What is a type I beta turn?

A malnourished child presents with bruising and bleeding gums. The illness is characterised by abnormal collagen and absence of proline hydroxylation. Which vitamin is deficient in this child?

1. K 2. C 3. E 4. A

Gluconeogenesis involves the______.



1. synthesis of glycogen from glucose 2. breakdown of glycogen to form glucose 3. breakdown of glucose to produce pyruvate 4. synthesis of glucose from non-carbohydrate precursors

Which of the following conditions are not associated with abnormalities in nucleic acid metabolism?



1. Gout. 2. Parkinson’s disease. 3. Lesch-Nyhan syndrome. 4. Xanthinuria.

The bases of RNA are the same as those of DNA with the exception that RNA contains_______.

1. cysteine instead of cytosine 2. uracil instead of thymine 3. cytosine instead of guanine 4. uracil instead of adenine