HSA Review: Lessons 1

Starch from food is a source of energy for organisms. Starch is a type of

In circulatory systems, a large part of the fluid is water. For example, human blood plasma is approximately 90% water. Which of these properties of water makes it an ideal material for dissolving necessary chemical substances?

The cell wall of a plant helps the plant cell maintain its shape. What is the main structural component of the cell wall of a plant?

Meat tenderizer is made with pepsin, an enzyme. A cook usually puts tenderizer on meat and then cooks the meat. If meat coated with tenderizer is placed in a refrigerator for a short time prior to cooking, how will the enzyme pepsin be affected?

The major role of carbohydrates in the human diet is to

A dog gets many nutrients from its food including amino acids. Which of these can be built directly using the amino acids?

Vitamins have important functions in the human body and are necessary for maintaining good health. Which of these is necessary for proper bone formation?

Plants such as the Venus flytrap and the sundew attract and consume insects. These plants are able to produce substances which break down the insect into compounds that are usable by the plant. One element obtained from these compounds is nitrogen.

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