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Flashcards in phys6final13 Deck (20):
1

VLDL:

formed in liver. Transport triglycerides from liver to adipose cells for storage.

2

LDL:

Carry cholesterol in blood to cells throughout body for repair and synthesis of steroid hormones & bile
salts.
Negative feedback loop starts to stop cell from taking any more LDLs.
LDL also put cholesterol around smooth muscles and arteries. BAD

3

HDL

removes excess cholesterol from cells and blood and takes it to liver for elimination. GOOD

4

Active transport of amino acid into body cells is stimulated by:

Insulin like growth factor and insulin hormones

5

Daily protein catabolism is stimulated by:

cortisol hormone (adrenal cortex)

6

Deamination:

Removal of amino group from amino acid to allow AA to enter Krebs

7

Ketone:

Bi-product after breakdown of protein. Indication of using too much protein (muscle mass of body)

8

Protein anabolism:

formation of peptide bonds between amino acids to produce new proteins. Happens in ribosomes.

9

20 types of AA in body....

10 are essential

10

vitamins C & B....

must be taken externally (water soluble (hydrophilic)

11

vitamins A, E, D, K...

fat soluble lipophilic

12

Transamination:

formation of non-essential AA -- Transfer of an amino group from an amino to pyruvic acid or to an acid in Krebs

13

How many amino acids occur in nature?

100

14

Basal Metabolic state:

body quiet resting and fasting

15

Basal Metabolic Rate:

(rate of metabolic reactions) 1200 - 1800 calories/day

16

Total Metabolic Rate:

total energy used by body per day

17

core temperature:

deep structures & subcutaneous layers

18

shell temperature:

body surface (difference can be 1 - 6 lower than core temperature)

19

factors affecting metabolic rate & heat production:

exercise, hormones (thyroid, testosterone, insulin, human growth hormone), nervous system (neurotransmitters), body temp (higher = higher metabolic rate), ingestion of food (can raise 10 - 20%), age (younger have higher), others (pregnancy, climate)

20

Conduction:

direct contact eg: clothes & jewelry