Nutrition, Digestion, and Absorption

Essential minerals and many vitamins can be harmful if consumed in excess

• True

• False

Accessory structures of the vertebrate digestive system

• are largely structural supports for the alimentary canal.

• include salivary glands, liver, pancreas and gall bladder.

• include mouth, salivary glands, liver and pancreas.

• include salivary glands, esophagus, and liver.

Humans (and other animals) are capable of synthesizing all 20 amino acids.

• True

• False

An important aspect of an alimentary canal is that

• it has only one opening in which food and wastes enter and exit, respectively.

• it has regions specialized for different functions.

• it digests foods rapidly.

• all the above are true.

Tags

NGSS.MS-LS1-7

Which of the following is true regarding insulin?

• It is released by the liver.

• It is released by the pancreas.

• Stimulates cells to take up glucose.

• 1st and 3rd answers are correct.

• 2nd and 3rd answers are correct.

Tags

NGSS.HS-LS1-3

Cellulose

• is very difficult to digest.

• requires microorganisms to aid in its digestion.

• is hydrolyzed by cellulase.

• can be digested by ruminants.

• all the above are correct.

Which of the following is not correct regarding a calorie?

• Is a measurement of energy found in foods (carbs, fats, & proteins).

• Amount of heat needed to raise temperature of 1 ml of H2O by 1oC.

• 1000 calories are equal to 1 Calorie.

• All the above are correct.

• None of the above are correct.

Absorption begins in the stomach

• True

• False

The appendix is a digestively inactive portion of

• the duodenum that has microbiota.

• the large intestine.

• the duodenum.

• the large intestine and secretes hydrolytic enzymes.

Which of the following is not true regarding the stomach?

• It is a muscular sac that is expandable.

• Has three layers of smooth muscles.

• Contains gastric pits that secrete pepsinogen and HCl.

• Is the primary site of carbohydrate digestion.