32b BMR

Question 1

how does age affect BMR? two points

Answer 1

BMR is low at birth and increases with growth.

decreases with aging

Question 2

how do endocrine factors impact BMR? three points

Answer 2

testosterone is higher in males which increases BMR

thyroid activity level increases BMR

seasonal changes in hormones

Question 3

how do the difference in species impact BMR? why?

Answer 3

its higher in carnivours becuase carnivours have more type 2 muscle fibres which require more energy

Question 4

how does reproduction affect BMR? two points

Answer 4

higher BMR during gestation

lactation increases BMR by 4-7 times

Question 5

how does growing impact the BMR?

Answer 5

young are usually on a protein based diet so its faster, older people slow with aging

Question 6

how has the metabolism for energy storage evovled? two points

Answer 6

1. to conserve energy
2. store fat for famine

Question 7

why is fat stored for energy? two points

Answer 7

its has twocie as much energy per gram compared to carbs and protein

fat contains less H2O so it weights less for better weight economy