Science test lesson 2

Question 1

hypothalamus

Answer 1

brain region where sensations are regulated. e.g. hunger and thirst

Question 2

hormones

Answer 2

chemical messengers secreted in the bloodstream

Question 3

metabolism

Answer 3

chemical reactions that maintain life

Question 4

cells

Answer 4

exhibit properties of living things e.g. growth

Question 5

cell membrane

Answer 5

boundary of an animal cell that seperates its internal cytoplasm, nucleus, and other structures from external environment

Question 6

cytoplasm

Answer 6

fluid in an animal cell

Question 7

absorption

Answer 7

molecules of food are taken into body from GI tract

Question 8

sphincters

Answer 8

tight rings of muscle seperating organs of GI tract

Question 9

accessory organs

Answer 9

salivary glands, lover, gallbladder, pancreas

Question 10

enzymes

Answer 10

chemicals that act on other chemicals to speed up body processes

Question 11

esophagus

Answer 11

muscular tube that connects the back of the mouth to stomach

Question 12

peristalsis

Answer 12

waves of squeezing and pushing contractions that move food in one direction

Question 13

small intestine

Answer 13

largest portion of GI tract, most digestion and absorption takes place

Question 14

gallbladder

Answer 14

stores bile and secretes it into the small intestine

Question 15

bile

Answer 15

fluid produces by liver and stored in gallbladder that emulsifiers fats in the small intestine

Question 16

pancreas

Answer 16

secretes digestive enzymes into small intestine via pancreatic duct

Question 17

liver

Answer 17

produces bile and it processes nutrient- rich blood from small intestine

Question 18

large intestine

Answer 18

cecum, colon, rectum, and anal canal

most water is absorbed and feces are formed

Question 19

peptic ulcer

Answer 19

area of GI tract that has been eroded away by acidic gastric juice

Question 20

food allergy

Answer 20

inflammatory reaction caused by an immune system hypersensitivity to a protein component of a food

Question 21

food intolerance

Answer 21

GI symptoms that happens when u eat a particular food

Question 22

celiac disease

Answer 22

consumption of gluten triggers damage to lining of small intestine