Question

lesson 3 quiz
i. directions in the space provided, write the letter of the choice that best completes the statement or answers the question.

1. which is not one of the three main processes of the digestive system?

a. circulation c. elimination
b. absorption d. digestion

1. what does saliva contain that begins to break down starches and sugars in food into smaller particles?

a. gastric juices c. enzymes
b. bile d. villi

1. what are the secretions from the stomach lining that contain hydrochloric acid and pepsin?

a. bile c. roughage
b. chyme d. gastric juices

1. which structure of the digestive system is the main site of nutrient absorptio

a. esophagus c. small intestine
b. stomach d. large intestine

1. which is not a healthful behavior that will have a positive effect on the digestive system?

a. wash your hands before sitting down to eat.
b. follow a well - balanced diet.
c. eat quickly and avoid chewing your food thoroughly.
d. drink at least eight 8 - ounce glasses of water a day.
ii. directions match the term in the left column with the best definition in the right column. write the letter of your choice in the space provided.

1. mastication a. a yellow - green, bitter fluid important in the breakdown and absorption of fats
2. peristalsis b. the process of chewing
3. bile c. a sore in the lining of the digestive tract
4. peptic ulcer d. a series of involuntary muscle contractions that move food through the digestive tract
5. appendicitis e. the inflammation of the appendix

Explanation:

1. La circulación no es un proceso del sistema digestivo. Los procesos principales son la digestión, la absorción y la eliminación.
2. La saliva contiene enzimas (como la amilasa) que empiezan a descomponer los almidones y los azúcares.
3. Los jugos gástricos contienen ácido clorhídrico y pepsina.
4. El intestino delgado es el principal sitio de absorción de nutrientes.
5. Comer rápidamente y no masticar bien no es saludable para el sistema digestivo.
6. Mastication significa masticar (proceso de masticación).
7. Peristalsis son las contracciones musculares involuntarias que mueven la comida por el tracto digestivo.
8. La bilis es un líquido amarillo-verde, amargo importante en la descomposición y absorción de grasas.
9. Un úlcera péptica es una herida en el revestimiento del tracto digestivo.
10. La apendicitis es la inflamación del apéndice.

Answer:

1. a. Circulation
2. c. Enzymes
3. d. Gastric juices
4. c. Small intestine
5. c. Eat quickly and avoid chewing your food thoroughly.
6. b. the process of chewing
7. d. a series of involuntary muscle contractions that move food through the digestive tract
8. a. a yellow - green, bitter fluid important in the breakdown and absorption of fats
9. c. a sore in the lining of the digestive tract
10. e. the inflammation of the appendix