U1 Introduction: Overview

Question 1

metabolism

Answer 1

sum of all catabolic and anabolic reactions in body

Question 2

anabolism

Answer 2

small, simple molecules assembled into larger, more complicated ones, requires energy

Question 3

catabolism

Answer 3

larger, complex molecules broken into smaller, simpler ones, releases energy

Question 4

4 requirements for life

Answer 4

oxygen, nutrients, temperature and atmospheric pressure ranges

Question 5

oxygen

Answer 5

key in chemical reactions, esp. ATP; brain requires ample oxygen

Question 6

nutrients

Answer 6

water, energy-yielding and body-building, micronutrients

Question 7

narrow temperature range

Answer 7

chemical reactions and structures deteriorate out of certain conditions

Question 8

narrow atmospheric pressure range

Answer 8

keeps blood gases dissolved, allows for breathing

Question 9

set point, normal range

Answer 9

physiological value around which normal range fluctuates, healthy/stable values around set point

Question 10

negative feedback

Answer 10

reverses a deviation from set point

Question 11

positive feedback

Answer 11

intensifies a deviation from a set point

Question 12

sensor/receptor

Answer 12

monitors physiological value

Question 13

control center

Answer 13

compares value to normal range

Question 14

effector

Answer 14

causes change to reverse detected deviation