TCI Ch. 21 Lesson Game

Which of these is an example of how proteins function in the body?

• • A. Proteins are excreted to send signals between cells.

• • B. Proteins are excreted to hold cells together in a tissue.

• • C. Proteins build and repair organelles and other cell structures.

• D. all of the above

How is the function of a cell determined by different proteins?

• • A. Each type of cell can make whatever protein it needs for any function.

• • B. Each type of cell has all proteins in different amounts that determines how the cell functions.

• • C. Each type of cell has unique set of proteins that determine how the cell functions.

• D. Each type of cell must gather as many proteins as possible in order to properly function.

Which of these is NOT a protein found in the skin?

• A. albutin

• B. collagen

• C. elastin

• D. keratin

When people age, their skin cells make

• • A. more collagen and elastin over time, resulting in a weaker skin structure.

• • B. less collagen and elastin over time, resulting in a weaker skin structure.

• • C. more collagen and elastin over time, resulting in a stronger skin structure.

• D. more collagen over time, resulting in less elastin in the skin structure.

When the shape of a hemoglobin protein changes in people with sickle cell anemia, the red blood cell that houses it

• A. continues to expand until the cell divides

• 
  B. becomes an entirely different kind of cell.

• C. also changes shape and becomes less effective.

• 
  D. becomes thinner and better at transporting oxygen.

How can the shape of the proteins forming a person’s taste buds affect what they taste?

• • 
    A. It doesn’t affect what a person tastes.

• • B. It can change the types of food a person can digest.

• • C. It can cause a person to have no tastebuds.

• D. It can increase or decrease a person’s ability to taste a substance.

Melanin is a substance that determines the

• • A. structure of your skin.

• • B. the speed at which you age.

• • C. number of taste buds you have.

• D. color of your skin and eyes.

What happens to people when their P protein is nonfunctional?

• • A. They have blue eyes.

• • B. They develop albinism.

• • C. They create too much melanin.

• D. They have darker skin and eyes.

A gene is a segment of DNA that

• • A. contains the instructions for making a product.

• • B. determines how many proteins each cell will receive.

• • C. determines how quickly a cell will be created.

• D. contains information about your environment.

What causes a gene to become “expressed”?

• • A. A gene is expressed when its instructions have been followed by a cell.

• • B. A gene is expressed when none of its instructions have been followed by a cell.

• • C. A gene is expressed when a cell deletes that segment of information.

• D. A gene is expressed when it transfers information to another cell.