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BIOL 203 MIDTERM 2 REVISION EXAM QUESTIONS AND ANSWERS A+ GRADED 100% VERIFIED.
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BIOL 203 MIDTERM 2 REVISION EXAM QUESTIONS AND ANSWERS A+ GRADED 100% VERIFIED.
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BIOL 203 MIDTERM 2 REVISION EXAMQUESTIONS AND ANSWERS A+ GRADED
100% VERIFIED.
Niacin is also called vitamin B______
✔✔Niacin (B3)
Heme: The iron mineral in ________
✔✔Heme: The iron mineral in food (only found in animal blood)
Absence of _________ will lead to anemia (too little blood)
✔✔Absence of heme will lead to anemia (too little blood)
Vitamin B_______ is responsible for synthesizing heme
✔✔Vitamin B6 (toxic in large amounts) is responsible for synthesizing heme
Nonheme iron: the iron in __________
✔✔Nonheme iron: the iron in plants
,Metabolizing energy,
metabolizing amino acid
and metabolizing DNA (most important) are 3 roles of what water soluble vitamin?
✔✔Folate's 2 roles:
metabolizing energy,
metabolizing amino acid
and metabolizing DNA (most important)
Folate deficiency may cause spina bifida: infants are born with their _________ outside of the body
✔✔Folate deficiency may cause spina bifida: infants are born with their spinal cord outside of
the body
Folate deficiency may cause anencephaly: infants are born with a malformed/missing parts of
the _____
✔✔Folate deficiency may cause anencephaly: infants are born with a malformed/missing parts
of the brain
,Folate deficiency may cause megaloblastic anemia: Prevention of normal division of __________
✔✔Folate deficiency may cause megaloblastic anemia: Prevention of normal division of RBCs
(these large, immature RBCs are called megaloblasts).
Vitamin B_______ deficiency may cause: Myelin sheath destruction in neurons
✔✔Vitamin B12 deficiency may cause: Myelin sheath destruction in neurons
B______ in food: bound to proteins that prevent its absorption
The synthetic form has a better bioavailability
✔✔B12 in food: bound to proteins that prevent its absorption
The synthetic form has a better bioavailability
Intrinsic factor (IF): Protein produced by the stomach cells needed for B__________ absorption
✔✔Intrinsic factor (IF): Protein produced by the stomach cells needed for B12 absorption
(Pernicious anemia: result of miss-shaped and/or lack of IF, which commonly effects the elderly)
Biotin is synthesized by _____ microbes
✔✔Biotin is synthesized by gut microbes
, Vitamin ____ deficiencies may cause Scurvy (cure is eating oranges/lemons)
✔✔Vitamin C deficiencies may cause Scurvy (cure is eating oranges/lemons)
Vitamin C is essential for synthesis of ______ (muscle fiber insulators)
✔✔Vitamin C is essential for synthesis of collagen (muscle fiber insulators)
_________ are unable to be created by any living organisms other than the earth
✔✔Minerals are unable to be created by any living organisms other than the earth
The human _______ requires 7 major minerals and 8 trace minerals
✔✔The human diet requires 7 major minerals and 8 trace minerals
Major minerals are required in _________ amounts per day: ______ than 100mg/day
✔✔Major minerals are required in larger amounts per day: greater than 100mg/day
Trace minerals are required in _________ abondance than major ones: ______ than 100mg/day
✔✔Trace minerals are required in less abondance than major ones: Less than 100mg/day
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