Unit 2 Module 2

Select all of the following organs that are a part of the digestive system. -Uterus -Esophagus -Large intestine -Pancreas -Kidneys -Liver

Esophagus Large intestine Pancreas Liver

True or False: Enzymes will work efficiently, regardless of environmental conditions.

False

Which of the following enzymes work to break down carbohydrates within the digestive system? Select all that apply. -Maltase -Amylase -Peptidase -Trypsin -Lipase

Maltase Amylase

Which of the following enzymes work to break down proteins in the digestive system? Select all that apply. -Peptidase -Trypsin -Amylase -Lipase -Maltase

Peptidase Trypsin

Select all of the following organs that are a part of the digestive system. -Pineal gland -Stomach -Heart -Mouth -Thyroid gland -Small intestine

Stomach Mouth Small intestine

describe chemical digestion

The collection of processes that break down nutrients into smaller units through enzymatic reactions

True or False: Nutrient molecules, including proteins, can be broken apart into individual amino acids, which can then go on to form other proteins again.

True

A substrate binds to the __ site of an enzyme.

active

The enzyme _____ is responsible for breaking down complex carbohydrates like starch and glycogen during digestion, while the enzyme _____ is responsible for breaking down the resulting disaccharide maltose.

amylase; maltase

After digestion, small monosaccharides are absorbed into _____ and transported throughout the body for use.

blood capillaries

The overall goal of the (BLANK) system is to break down nutrients to be used elsewhere in the body.

digestive

The goal of the digestive system is to break down polymers into monomers that can be reused elsewhere in the body. The molecules responsible for chemically breaking down these polymers are called

enzymes

The activity of most enzymes and metabolic pathways within the digestive system is regulated by

feedback inhibition.

The enzyme that is active within the small intestine and is most closely associated with the digestion of fat molecules is called

lipase

Lipids are digested within the small intestine and nutrients are absorbed into the _____ for transport to the lymphatic system.

lymphatic capillaries

The collective processes that break down and increase the surface area of food so that nutrients can be better digested are collectively referred to as

mechanical digestion.

A group of organs that works together to accomplish a common task is called a(n)

organ system

Most digestive enzymes are considered to be __ nutrient molecules and have complex three-dimensional shapes that allow them to interact with molecules to catalyze chemical reactions.

protein

Most digestive enzymes are

proteins

During protein digestion, _____ are broken down into _____, which are then absorbed into the bloodstream and transported for use elsewhere in the body.

proteins; amino acids

During a chemical reaction catalyzed by an enzyme, the enzyme specifically acts on the _____ to form _____.

substrate; products

During feedback inhibition,

the product at the end of the pathway has the ability to turn off the enzyme.

defines an organ

A collection of tissues that work together to accomplish a common task