Nutrition Ch. 3 Quiz

Jasmine has gallstones and experiences severe pain when she eats. What substance should she avoid to try to reduce the pain she is experiencing?

French fries.

Which of the following is NOT an end result of chemical digestion?

Protein.

Factors that influence transit time include all of the following EXCEPT the

All of these influence transit time.

Proteins are broken down into _____ whereas fats are digested mostly into _____.

Amino Acids, Fatty Acids.

Which of the following is the correct order, from smallest unit to largest?

Atoms → molecules → cells → tissues.

The exchange of nutrients and gases occurs across the thin walls of the

Blood capillaries.

When the epiglottis doesn't move correctly, it can lead to

Choking.

Bicarbonate neutralizes the acid in chyme, which allows ___ from the pancreas and small intestine to function.

Enzymes.

Protein molecules that increase the rate of specific chemical reactions without themselves being changed are

Enzymes.

The majority of absorption occurs in the stomach.

False.

Which of the following is digested before being absorbed?

Protein.

Diffusion is the net movement of substances from an area of ___ concentration to an area of ___ concentration.

Higher, Lower.

The gastrointestinal tract is part of the endocrine system because it releases ___ that regulate digestion and the rate at which food moves through the digestive system.

Hormones.

_____ lubricates, moistens, and protects the cells within the mucosa.

Mucus.

When an antigen is present, ____ are the first type of white blood cell to come to the body's defense.

Phagocytes.

The ____ is responsible for swallowing and is also a part of the respiratory tract.

Pharynx.

Cellular respiration uses oxygen to convert glucose, fatty acids, and amino acids into carbon dioxide, water, and ATP.

True.

Chewing food begins mechanical digestion and breaks up fiber.

True.

Food still in the lumen is not available for use by the cells.

True.

The nutritional composition of a meal affects how long it stays in the stomach.

True.

Excess amino acids can be converted into fatty acids and stored as body fat.

True..

The _____ system eliminates the majority of nitrogencontaining metabolic waste products.

Urinary.

These yogurts are good sources of ____, which contain active cultures of beneficial bacteria.

Vitamin E.

The regulation of stomach motility and secretion does not vary based on

not yet reached the stomach.

As compared to when you are at rest between meals, when you are exercising, a ___________ proportion of your blood goes to your digestive system.

smaller.