lab 8

Question 1

metabolism

Answer 1

the sum of all chemical reactions in an organism

Question 2

catabolic

Answer 2

(destructive) large organic molecules broken down into smaller molecules(releases energy)

Question 3

anabolic(constructive)

Answer 3

smaller precursor molecules assembled into larger organic molecules(requires energy)

Question 4

metabolic rate

Answer 4

the amount of energy used by an animal within a specific period of time

Question 5

cellular respiration

Answer 5

energy produced by the controlled oxidation of cellular fuels(to maintain metabolic rate)

Question 6

calculating the metabolic rate of an animal

Answer 6

amount of oxygen consumed per unit time

Question 7

closed system spirometry

Answer 7

animal confined to closed chamber in which amount of oxygen consumed is measured over a designated period of time

Question 8

main factors influencing metabolic rate

Answer 8

body temperature and body size

Question 9

other factors influencing metabolic rate

Answer 9

physical activity
diet
general state of health
hormones

Question 10

endothermic

Answer 10

warm-blooded

Question 11

ectothermic

Answer 11

cold blooded

Question 12

endothermic rate of metabolism __ ectothermic rate of metabolism

Answer 12

>

Question 13

metabolic rate increases

Answer 13

directly as a function of weight

Question 14

smaller animals consume

Answer 14

more oxygen per gram of weight