NUSCTX 10, Midterm 2 - UC Berkeley EXAM 2025
UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED
ANSWERS (complete solutions) ASSURED SUCCESS/GRADED
A+!!!
Dietary Reference Intakes - CORRECT ANSWER-Adequate Intake
Tolerable Upper-Intake Level
Estimated Average Requirement
Recommended Dietary Allowance
Properties of Water Soluble Vitamins - CORRECT ANSWER-Dissolve in water
No real stores
Readily excreted
Function: coenzymes and antioxidants
Absorbed by portal system
Not required daily
High doses can be toxic
Subject to cooking and food storage losses
Properties of Fat Soluble Vitamins - CORRECT ANSWER-Fat soluble
,Stored in tissues
Remain in adipose and liver
Function: hormones, blood clotting, antioxidants
Absorbed by lymphatic system with fats (chylomicrons)
Not required daily
High doses can be toxic
Digestion of fat soluble vitamins - CORRECT ANSWER-Require bile acids for
absorption
Require digestive enzymes for absorption
Absorbed in the similar manner of fats
Little vitamin K production by gut bacteria
Fat-Soluble Vitamins - CORRECT ANSWER-Vitamin A
Vitamin D
Vitamin E
Vitamin K
Water-Soluble Vitamins - CORRECT ANSWER-B complex plus vitamin C
Required in diet
,Act as enzyme cofactors
Deficiencies used to be common
People on poor diets often deficient in multiple vitamins
B Vitamins - CORRECT ANSWER-Thiamin (B1)
Riboflavin (B2)
Niacin (B3)
Biotin
Pantothenic Acid
Vitamin B6
Folate
Vitamin B12
Retinol - CORRECT ANSWER-Vitamin A
Retinal - CORRECT ANSWER-Visual Cycle
Retinoids - CORRECT ANSWER-Support development, growth, reproduction
Epithelia (skin, respiratory, and digestive systems)
, Immune System
Nervous System
Vitamin A in the Liver - CORRECT ANSWER-Liver breaks down some vitamin A
into retinoic acid and saves the rest for storage
Retinoic Acid - CORRECT ANSWER-Reproduction
Nervous System
Epithelia (skin)
Immune Function
Recommended Dietary Allowance of Vitamin A - CORRECT ANSWER-0.3 mg to
1.3 mg: age, sex, pregnancy, lactation
Toxic Intake - CORRECT ANSWER-100 fold > RDA in adults
20 fold > in children
Vitamin K - CORRECT ANSWER-Koagulation
Mechanism of Vitamin K Action - CORRECT ANSWER-i) Targeted Protein (e.g.
prothrombin)
UPDATE/PRACTICE QUESTIONS AND CORRECT VERIFIED
ANSWERS (complete solutions) ASSURED SUCCESS/GRADED
A+!!!
Dietary Reference Intakes - CORRECT ANSWER-Adequate Intake
Tolerable Upper-Intake Level
Estimated Average Requirement
Recommended Dietary Allowance
Properties of Water Soluble Vitamins - CORRECT ANSWER-Dissolve in water
No real stores
Readily excreted
Function: coenzymes and antioxidants
Absorbed by portal system
Not required daily
High doses can be toxic
Subject to cooking and food storage losses
Properties of Fat Soluble Vitamins - CORRECT ANSWER-Fat soluble
,Stored in tissues
Remain in adipose and liver
Function: hormones, blood clotting, antioxidants
Absorbed by lymphatic system with fats (chylomicrons)
Not required daily
High doses can be toxic
Digestion of fat soluble vitamins - CORRECT ANSWER-Require bile acids for
absorption
Require digestive enzymes for absorption
Absorbed in the similar manner of fats
Little vitamin K production by gut bacteria
Fat-Soluble Vitamins - CORRECT ANSWER-Vitamin A
Vitamin D
Vitamin E
Vitamin K
Water-Soluble Vitamins - CORRECT ANSWER-B complex plus vitamin C
Required in diet
,Act as enzyme cofactors
Deficiencies used to be common
People on poor diets often deficient in multiple vitamins
B Vitamins - CORRECT ANSWER-Thiamin (B1)
Riboflavin (B2)
Niacin (B3)
Biotin
Pantothenic Acid
Vitamin B6
Folate
Vitamin B12
Retinol - CORRECT ANSWER-Vitamin A
Retinal - CORRECT ANSWER-Visual Cycle
Retinoids - CORRECT ANSWER-Support development, growth, reproduction
Epithelia (skin, respiratory, and digestive systems)
, Immune System
Nervous System
Vitamin A in the Liver - CORRECT ANSWER-Liver breaks down some vitamin A
into retinoic acid and saves the rest for storage
Retinoic Acid - CORRECT ANSWER-Reproduction
Nervous System
Epithelia (skin)
Immune Function
Recommended Dietary Allowance of Vitamin A - CORRECT ANSWER-0.3 mg to
1.3 mg: age, sex, pregnancy, lactation
Toxic Intake - CORRECT ANSWER-100 fold > RDA in adults
20 fold > in children
Vitamin K - CORRECT ANSWER-Koagulation
Mechanism of Vitamin K Action - CORRECT ANSWER-i) Targeted Protein (e.g.
prothrombin)
