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Biochem Midterm Exam 2018 MD140 lect 1-5

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biochem Quiz on Biochem Midterm Exam 2018 MD140 lect 1-5, created by Alannah McDonnell on 08/02/2018.
Alannah McDonnell
Quiz by Alannah McDonnell, updated more than 1 year ago
Alannah McDonnell
Created by Alannah McDonnell over 6 years ago
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Resource summary

Question 1

Question
What increases the transcription of Glucokinase
Answer
  • Glucose
  • Iron
  • Glycogen
  • Cellulose

Question 2

Question
Iron increases transcription for the synthesis of ferritin
Answer
  • True
  • False

Question 3

Question
[blank_start]Vitamin K[blank_end] increases the post [blank_start]translational[blank_end] carboxylation of [blank_start]gluthamic acid residues[blank_end] for synthesis of [blank_start]prothrombin[blank_end]
Answer
  • Vitamin K
  • Iron
  • Glucokinase
  • Glucose
  • translational
  • transcriptional
  • thrombin
  • prothrombin
  • glutamine
  • gluthamic acid residues

Question 4

Question
Phenotypic variability is based on interindividual genetic variation
Answer
  • True
  • False

Question 5

Question
What can nutrients influence
Answer
  • gene expression
  • protein expression
  • metabolite production

Question 6

Question
What are the genomic tools
Answer
  • transcriptomics
  • proteomics
  • metabolomics
  • nutriomics
  • panomics

Question 7

Question
what is the precursor of creatine
Answer
  • aspartame
  • histidine
  • tryptophan
  • arginine

Question 8

Question
what is dangerous for PKU sufferers
Answer
  • Histidine
  • neotame
  • aspartame
  • glucose

Question 9

Question
Carrots have a higher glycemic index than ice cream
Answer
  • True
  • False

Question 10

Question
Carrots have a higher glycemic load than icecream
Answer
  • True
  • False

Question 11

Question
what is the precursor for nitric oxide
Answer
  • nitrogen
  • oxygen
  • aspartame
  • arginine
  • histidine

Question 12

Question
what amino acid is decarboxylated to histamine
Answer
  • histamine
  • tryptophan
  • glycine
  • histidine
  • arginine

Question 13

Question
precursor of serotonin?
Answer
  • Tryptophan
  • Glycine
  • arginine
  • histamine

Question 14

Question
what is δ-aminolaevulinic acid made from?
Answer
  • Glycine
  • tryptophan
  • histidine

Question 15

Question
which of these are functions of glycine
Answer
  • it is required for detox reactions in the liver
  • it occurs in every 2nd AA in collagen
  • it is a principle inhibitory transmitter in the brain stem
  • it is a principle inhibitory transmitter in the spinal cord
  • it is a principle inhibitory transmitter in the nerve endings
  • it occurs in every 3rd AA in collagen

Question 16

Question
what PDCAAs are >1.00
Answer
  • Egg
  • Gelatin
  • whole wheat bread
  • milk protein
  • soybean proteins
  • kidney beans

Question 17

Question
what PDCAAs are <1
Answer
  • egg
  • gelatin
  • milk protein
  • whole wheat bread
  • kidney beans
  • soybean proteins

Question 18

Question
PDCAA of beef/poultry/fish
Answer
  • 0.85
  • 3
  • 1.2
  • 0.55

Question 19

Question
what do polymorphisms of IRS explain?
Answer
  • much of the inherited susceptibility of osteoporosis
  • much of the inherited susceptibility of T2D
  • elevated blood homocysteine
  • high need for folic acid

Question 20

Question
what do polymorphisms of Vit D explain?
Answer
  • much of the inherited susceptibility of osteoporosis
  • much of the inherited susceptibility of T2D
  • elevated blood homocysteine, high need for folic acid

Question 21

Question
what do polymorphisms of methylene tetrahydrofolate reductase explain?
Answer
  • much of the inherited susceptibility to osteoporosis
  • much of the inherited susceptibility to T2D
  • elevated blood homocysteine, high need for folic acid

Question 22

Question
RDA = [blank_start]Recommended Dietary Allowance[blank_end]
Answer
  • Recommended Dietary Allowance

Question 23

Question
EAR = [blank_start]Estimated Average Requirement[blank_end]
Answer
  • Estimated Average Requirement

Question 24

Question
AI = [blank_start]Adequate intake[blank_end]
Answer
  • Adequate intake

Question 25

Question
UL = [blank_start]Tolerable Upper Intake Level[blank_end]
Answer
  • Tolerable Upper Intake Level

Question 26

Question
In an average 70kg man what % of body weight is Oxygen?
Answer
  • 61%
  • 23%
  • 10%
  • 5%

Question 27

Question
In an average 70kg man what % of body weight is Carbon?
Answer
  • 61
  • 23
  • 10
  • 2.6
  • 1.4
  • 0.8

Question 28

Question
In an average 70kg man what % of body weight is Hydrogen?
Answer
  • 61
  • 23
  • 10
  • 2.6

Question 29

Question
In an average 70kg man what % of body weight is Nitrogen?
Answer
  • 61
  • 23
  • 2.6
  • 1.4

Question 30

Question
In an average 70kg man what % of body weight is Calcium?
Answer
  • 61
  • 23
  • 10
  • 1.4
  • 0.8

Question 31

Question
In an average 70kg man what % of body weight is Phosphorus?
Answer
  • 61
  • 23
  • 2.6
  • 1.4
  • 0.8

Question 32

Question
In an average 70kg man what % of body weight is total water?
Answer
  • 60
  • 20
  • 14.4
  • 40

Question 33

Question
In an average 70kg man what % of body weight is total lipid?
Answer
  • 2.1
  • 60
  • 20
  • 40

Question 34

Question
In an average 70kg man what % of body weight is protein?
Answer
  • 2.6
  • 14.4
  • 40
  • 60.7

Question 35

Question
In an average 70kg man what % of body weight is muscle?
Answer
  • 40
  • 21
  • 60
  • 10

Question 36

Question
In an average 70kg man what % of body weight is Adipose Tissue?
Answer
  • 60
  • 40
  • 21
  • 10

Question 37

Question
which of these are indirect methods of determining body compositions
Answer
  • densitometry
  • weight/height indices
  • 40K Counting
  • CT / MRI
  • lean mass and fat mass

Question 38

Question
which are doubly indirect methods of determining body composition?
Answer
  • weight/height indices
  • bone mineral content and density
  • skinfolds/ ultasounds
  • creatinine excretion
  • CT / MRI

Question 39

Question
what is DXA for?
Answer
  • Densitometry
  • CT / MRI
  • bone mineral content and density
  • weight / height indices
  • fat mass and lean mass

Question 40

Question
which is the most important sugar alcohol
Answer
  • xylitol
  • glucose
  • sorbitol
  • erythritol

Question 41

Question
what is xylitol derived from
Answer
  • xylose
  • glucose
  • fructose
  • amalose

Question 42

Question
which takes into account the serving size
Answer
  • glycemic index
  • glycemic load

Question 43

Question
Examples of soluble fibres
Answer
  • pectin
  • cellulose
  • hemi cellulose
  • gums
  • semi celluloses

Question 44

Question
Examples of insoluble fibres
Answer
  • Cellulose
  • pectin
  • hemi cellulose
  • gums
  • lingin

Question 45

Question
what small chain fatty acids are produced in the large intestine?
Answer
  • acetate
  • propinate
  • butyrate

Question 46

Question
what is the major energy source for colonocytes
Answer
  • acetate
  • propinate
  • butyrate

Question 47

Question
which of the small chain fatty acids is metabolized by peripheral tissues
Answer
  • acetate
  • propionate
  • butyrate

Question 48

Question
which of these is 200 - 700 times sweeter than sugar?
Answer
  • aspartic acid
  • saccharin
  • sucralose
  • acesulfame K

Question 49

Question
which is 7000 - 13000 times sweeter than sugar?
Answer
  • aspartame
  • neotame
  • aspartic acid
  • saccharin

Question 50

Question
what is a safer alternative to Aspartame?
Answer
  • Neotame
  • sucralose
  • saccharine
  • acesulfame K

Question 51

Question
what is an identifier of Acesulfame K
Answer
  • pH stable
  • heat stable
  • 700 times sweeter than sugar
  • identical sweetness to sugar

Question 52

Question
what is omega 3 a precursor for?
Answer
  • EPA
  • DHA
  • Arachidonic acid

Question 53

Question
what is omega 6 a precursor for?
Answer
  • EPA
  • DHA
  • arachidonic acid

Question 54

Question
what is aspartame derived from
Answer
  • aspartic acid
  • phenylalanine
  • sucrose
  • fructose
  • ferric acid

Question 55

Question
which is an importance of omega 3
Answer
  • structure and function of cell membranes
  • skin integrity
  • fertility
  • eye & CNS
  • RBC structure

Question 56

Question
which is an importance of omega 6
Answer
  • structure and function of cell membranes
  • growth integrity
  • skin integrity
  • fertility
  • eye & CNS
  • RBC Structure

Question 57

Question
what is the other name for omega 3
Answer
  • alpha-linolenic acid
  • linoleic acid

Question 58

Question
what is the other name for omega 6?
Answer
  • alpha-linolenic acid
  • linoleic acid

Question 59

Question
Biological effects of omega 3
Answer
  • reduce risk of fatal heart attack
  • thin blood
  • decrease inflammation
  • break down fat
  • lower blood cholesterol
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