Question

section 1

1. the mixture of food and gastric juice that passes from your stomach to your small intestine is called

a. peristalsis.
b. chyme.
c. bile.
d. absorption.

1. most mechanical digestion takes place in the

a. epiglottis.
b. gallbladder.
c. stomach.
d. large intestine.

1. what are enzymes? what is their role in digestion?
2. describe how nutrients move from your digestive system into your blood.
3. how is the pancreas involved in digestion?
4. critical thinking why is mechanical digestion important for chemical digestion?
5. critical thinking some antibiotics used to fight disease also kill harmless bacteria in your body. how might this affect vitamin levels in your body?

section 2

1. exercise and consuming plenty of fiber may help you avoid

a. constipation.
b. foodborne illness.
c. lactose intolerance.
d. inflammatory bowel disease.

1. cross - contamination is most likely to occur when foods are not properly

a. cooked.
b. separated.
c. chilled.
d. cleaned.

1. describe two ways in which exercise benefits your digestive system.
2. list three ways that microorganisms that cause foodborne illnesses can be spread.
3. critical thinking why do you think that weight loss is a symptom of several different digestive disorders?

section 3

1. in which organ is urea produced?

a. the kidney
b. the skin
c. the liver
d. the bladder

1. the filtering unit of the kidney is the

a. bladder.
b. nephron.
c. ureter.
d. urethra.

1. list the organs in the order through which urine travels from the kidney out of the body.
2. why is drinking plenty of water a benefit to your excretory system?
3. critical thinking how could a large kidney stone block urine flow?

building health skills

1. making decisions a food worker at a take - out restaurant does several things that make you question the safety of the food you ordered. in a paragraph, describe how you would handle this situation. writing
2. communicating for several weeks, a family member has had abdominal cramps and diarrhea. in an e - mail, explain to your family member why he or she should seek medical care. writing
3. setting goals track the amount of water you consume each day over a three - day period. also note when you drink water—with every meal or only when you are thirsty? then develop and follow a plan to consume more water for one week. at the end of the week, evaluate how you did.

health and community
organ donors in many states, when people apply for a driver’s license, they can sign a form indicating a desire to be an organ donor. contact your state’s department of motor vehicles to find out what a person needs to do to indicate a willingness to donate organs. write a fact sheet summarizing what you learned. writing

Explanation:

Question 1

The mixture of food and gastric juice moving from stomach to small intestine is chyme. Peristalsis is muscle movement, bile is from liver, absorption is nutrient uptake.

Most mechanical digestion occurs in the stomach (churning food). Epiglottis is for swallowing, gallbladder stores bile, large intestine absorbs water.

Exercise and fiber help avoid constipation (by promoting bowel movement). Foodborne illness is from pathogens, lactose intolerance is enzyme - related, inflammatory bowel disease has other causes.

Answer:

b. chyme

Question 2