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BIOL 203 MIDTERM 2 REVISION EXAM QUESTIONS AND ANSWERS A+ GRADED 100% VERIFIED. £13.46
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BIOL 203 MIDTERM 2 REVISION EXAM QUESTIONS AND ANSWERS A+ GRADED 100% VERIFIED.

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  • BIOL 203
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  • BIOL 203

BIOL 203 MIDTERM 2 REVISION EXAM QUESTIONS AND ANSWERS A+ GRADED 100% VERIFIED.

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  • September 20, 2024
  • 38
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIOL 203
  • BIOL 203
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BIOL 203 MIDTERM 2 REVISION EXAM
QUESTIONS 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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