PROTEINS Flashcards

1
Q

The average persons body contains __ kg of proteins

A

10-12 kg

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2
Q

What are the building blocks of proteins?

A

Amino Acids

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3
Q

What determines AA

A

Side chain

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4
Q

What is the process that makes a dipeptide

A

when OH AND H leave AA the molecule combines and forms a dipeptide.

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5
Q

dipeptide has _ AA and _ bonds

A

2 AA ans 1 bonds

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6
Q

Tripeptide has _AA and _ bonds

A

3 AA and 2 bonds

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7
Q

Polypeptide has _ AA

A

100 AA

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8
Q

Proteins have _ AA

A

more than 100

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9
Q

How many essential AA are there?

A

20

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10
Q

Linking AA creates an almost infinite number of possible ____

A

proteins

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11
Q

How many essential AA can not be synthesize and must be consumed from food

A

8

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12
Q

Non- essential AA are not made in the body T or F

A

F they are made in the body

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13
Q

Name 3 essential AA

A

Trp
valine
isoleucine

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14
Q

Essential AA Methionine makes _ a non essential AA

A

Cystine

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15
Q

Essential AA Phenylalanine makes _ a non essential AA

A

Tyrosine

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16
Q

How do you consume high quality proteins/ complete proteins? do they contain all essential AA?

A

come from food. contain all essential AA

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17
Q

What does an incomplete protein/ low quality protein lack?

A

one or more essential AA (malnutrition)

18
Q

Why are Grains and Legumes no considered to have essential AA?

A

do not have all essential AA

19
Q

What is an Lactovegetarian?

A

adding milk to the diet

20
Q

Which AA do grains lack

21
Q

Which AA do legumes lack

A

methionine

22
Q

What is an Ovolactovegetarian

A

adding egg to the diet

23
Q

Adding milk to your diet increase what in the body

A

Calcium, B12, and phosphorus

24
Q

Adding eggs to diet insures high _____

A

quality protein

25
When N detached from AA. What is this called?
deamination
26
Does increasing protein intake enhance performance?
No
27
When N leaves the AA group what happens to it
it is excreted via urination
28
how can excess nitrogen cause damage to the body
strain kidneys and liver
29
What is the recommend protein intake?
.8g/kg x body weight
30
when does protein catabolism accelerate?
during exs as carb reserves deplete.
31
Why do well trained athletes have to maintain optimal levels of liver and muscle glycogen?
to avoid loosing lean muscle mass
32
Why do the proteins in the nervous and connective tissue not participate in energy metabolism.
the hold on to protect nervous and connective tissue
33
where does alanine deaminate?
liver
34
Where does transamination occur
muscles
35
Briefly explain the Glucose/Alanine cycle.
glucose in the liver turn into pyruvate and lactate
36
where is protein located in the body
muscle, blood and visceral
37
RBC contain __ % of protein
20%
38
Brain contain __ % of protein
10%
39
Muscle contains __ % of protein
65%
40
What role does protein play in DNA, RNA, NAD+FAD, hem, myoglobin and catecholamine.
incorporates N
41
do protein activate vitamins
yes
42
what is a protein buffer
captures H and makes blood less acidic