PRACTICE TEST A TERMS

Question 1

somatic reflex

Answer 1

a fast, automatic response your body makes to protect itself. (involves skeletal muscles)

Question 2

myosin

Answer 2

protein found in muscle fibers that helps muscles contract

Question 3

tropomyosin

Answer 3

protein in muscles that blocks actin from binding with myosin when muscle is at rest (prevents contraction of muscles)

Question 4

anabolism

Answer 4

building part of metabolism; takes small molecules to build them into bigger, more complex molecules

Question 5

catabolism

Answer 5

breaking down of metabolism; takes big molecules and breaks them into smaller molecules to release energy

Question 6

active immunity

Answer 6

body makes its own antibodies to fight off infections (naturally/artificially)

Question 7

passive immunity

Answer 7

receiving antibodies from another source
(like breast milk)

Question 8

innate immunity

Answer 8

defense you are born with

Question 9

adaptive immunity

Answer 9

body remembers past infections and fight them off

Question 10

coagulation

Answer 10

process of blood clotting to stop bleeding when receiving a cut; platelets form the clot
protein fibers hold it together

Question 11

gastrulation

Answer 11

when cells organize into 3 layers during embryo development
ectoderm- skin, nervous system
mesoderm - muscles, bones, heart
endoderm- lungs intestines liver