Question

need help with these two question

You complain of being tired all the time even though you are eating adequate amounts of carbohydrates, protein and fat to nourish your body. Your friend suggests that you start taking B-vitamins. Which of the following answers explains why your friend would make this suggestion and would taking B-vitamins be a beneficial way to boost your energy level? Choose all that apply B vitamins have calories and therefore provide energy B-vitamins are coenzymes that help the body metabolize macronutrients through reactions in the energy metabolism pathway Taking B-vitamins does not boost your energy level unless you are deficient. The more B vitamins you take, the more energy you will produce. Question 13 2 pts Without vitamin B6, all amino acids be essential. Why is this a true statement? Choose all that apply. Vitamin B6 is converted to the coenzyme PLP which is active in amino acid metabolism The coenzyme PLP aids in the synthesis of non-essential amino acids by playing a role in transamination. Niacin is needed to make amino acids- Vitamin B6 assists in the breakdown of glycogen to glucose.

Answer 1

12. The correct option is b) B-vitamin are coenzymes that help the body metabolize macronutrients through reactions in the energy metabolism pathway . All types of vitamin B function as coenzymes and aids in metabolism .

13. The correct option is a) and b ) vitamin B6is converted to the coenzyme PLP which is active in amino acid metabolism . Transmission involve the transfer of amino group (-NH2) from one amino acid to an alpha-keto acid

- important for synthesis of nonessential AAs

- use AA carbon skeletons for energy or glucose production

# simplified: transfers AA to enzyme & eventually recycled:

- PLP (or PMP) is coenzyme fo amino transferase (AST) and alanine transferase (ALT)

1. corresponding a-keto acid of AA is produced along w/ PMP

2. transamination cycle is completed as new a-keto acid substrate receives amino group from PMP

3. corresponding AA is generated, along w/ regeneration of PLP