Vitamin B7 (Biotin)

Question 1

Biotin is a coenzyme in __________ reactions.

Answer 1

carboxylation

Question 2

A large percentage of biotin required by humans is supplied by __________ (animal products/plant products/intestinal bacteria)

Answer 2

intestinal bacteria

Question 3

Adding ________ (raw egg/polished rice) to the diet can lead to biotin deficiency because there is a glycoprotein ________ (ceruloplasmin/avidin) in it which tightly binds to biotin and prevents the absorption of B7.

Answer 3

Raw eggs

Avidin

Question 4

Symptoms of _______ deficiency are alopecia (hair loss), dermatitis, loss of appetite, and nausea.

Answer 4

biotin