bio lab 3

Question 1

endotherm

Answer 1

endo = inside
an animal that gains most of the body heat from internal metabolic processes

Question 2

ectotherm

Answer 2

ecto = outside
an animal that gains most of the heat from external sources (environment + behavior)

Question 3

homeotherm

Answer 3

animal that has constant body temp
(humans, dog, mouse)

Question 4

heterotherm

Answer 4

animal whose body temp varies w/ environmental temp
(frog, snake, salmon)

Question 5

metabolic rate

Answer 5

rate of energy use by all cells of an individual

Question 6

describe thermogulation

Answer 6

endotherm + ectotherm

Question 7

describe body temp

Answer 7

homeotherm + heterotherm

Question 8

why body temp matters?

Answer 8

reactions occur at higher temps but enzymes have optimal temps @ which they work best

Question 9

temps too high or low?

Answer 9

enzymes lose their ability to bind and substrate + eventually denature

Question 10

cell respiration equation

Answer 10

C6H12O6 + 6O2 –> 6CO2 + 6H20 + ATP energy

Question 11

cell respiration

Answer 11

how an organism can turn food into energy can use ATP

Question 12

respiration rate

Answer 12

the rate of oxygen consumption of an organism; used as a proxy for a measure metabolic rate of organisms

Question 13

measured what in mice/fish experiment

Answer 13

respiration rates

Question 14

finding what in experiment

Answer 14

metabolic rate + body temperature will/will not change based on room temperature or colder environment for each organisms

Question 15

metabolic rate of mice

Answer 15

higher metabolic rate @ colder temperature + respiration rate is faster @ colder temp = working harder to breath in cold environment

Question 16

metabolic rate of fish

Answer 16

higher metabolic rate @ room temperature + respiration rate is faster @ room temperature = working hard to take gulps in room temperature