Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Liver presentation > Amino acids and nitrogen balance > Flashcards

Amino acids and nitrogen balance Flashcards

1
Q

What is structure of AA? Draw?

A

Amino group
Carboxyl group
R-side chain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What group is responsible properties of aa?

A

R chain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are essential aa?
How many?

A

Body can’t produce, need in diet
9

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are non essential aa?
How many?

A

Body able produce
11

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How many total amino acids?

A

20

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are two diff types of amino acid?

A

Glucogenic
Ketogenic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are glucogenic aa?

A

Carbon backbone used- gluconeogenesis or TCA cycle intermediates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are ketogonic aa?

A

Carbon backbone produces acetyl CoA and acetoacetyl CoA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Name 3 essential aa?

A

Valine
Leucine
Tryptophan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Name 3 non-essential aa?

A

Alanine
Glutamate
Aspartate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are conditionally essential aa?

A

Depend consumption other aa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What aa are solely ketogenic? (2)

A

Leucine
Lysine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are aa function?

A

Protein production
Production non-protein molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are amino acids joined by?

A

Peptide bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How many amino acids in:
Dipeptide
Polypeptide
Protein

A

Dipeptide = 2
Polypeptide < 50
Protein > 50

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Does anabolism occur in fed or fasting state?

A

Fed

17
Q

Does catabolism occur in fed or fasting state?

A

Fasting

18
Q

What are sources nitrogen?

A

Diet- aa from protein

19
Q

Where is nitrogen lost?

A

Gut and kidneys- urea

20
Q

What state should nitrogen balance be?

A

Equlibrium

21
Q

In fasting state how is nitrogen accessed? (2)

A

1) Skeletal muscle
2) Free pool aa in blood

22
Q

What is main contributor of nitrogen in fed state?

A

Diet

23
Q

How is body protein in turnover?

A

Degradation- Lysosomal and Ubiquitin-dependent pathways
Protein re-synthesis

24
Q

What should nitrogen balance be?

A

± 4 g/day
Positive/negative balance depend gain/loss

25
Q

Where are amino acids located? (3)

A

Blood
Proteins in body
Metabolic precursors

26
Q

How many kg of protein in body?

A

10 kg

27
Q

Are amino acids stored?

A

No- always have function

28
Q

How do lose protein?

A

Renal excretion- 70g
Faecal loss- 10g
Skin/hair/sweat

29
Q

What is recommended intake protein?

A

0.75g/kg/day
55g- men
45g- women

30
Q

What condition expect positive nitrogen balance?

A

Pregnancy
Lactation
Bodybuilder and steroids

31
Q

What condition expect negative nitrogen balance?

A

Protein malnutrition
Spesis
Corticosteroids

32
Q

What do amino acids break down into?

A

a keto acids- citric acid cycle
Nitrogen- biosynthesis
- excretion

32
Q

What do amino acids break down into?

A

a keto acids- citric acid cycle
Nitrogen- biosynthesis
- excretion

33
Q

Draw how amino acids broken down?

A

Liver presentation (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions