Review of Biology Part B

True or False: Almost all cells in the body have exactly the same DNA.

• True

• False

What is the characteristic of life that refers to maintaining a stable internal environment in the body?

• Feedback mechanisms

• Growth and development

• Homeostasis

• Metabolism

In this type of feedback mechanism, the output/product increases/amplifies the response

• Negative feedback loop

• Positive feedback loop

• Osmosis

• Transduction

In this type of feedback mechanism, the output/product slows down the response or causes a counter response

• Negative feedback loop

• Positive feedback loop

• Osmosis

• Transduction

A laboring woman's body releasing hormones to amplify the process of labor and complete the birthing process is an example of

• Positive feedback loop

• Negative feedback loop

• Neutral feedback loop

Being hot triggers a sweat response which cools the body back down in the process of thermoregulation. This is an example of

• Positive feedback loop

• Negative feedback loop

• Neutral feedback loop

True or False: Passive transport requires energy because substances are moving against a concentration gradient.

• True

• False

In osmosis, _ is moving from an area with a low solute concentration to a an area with a high solute concentration.

• Water

• Solute

• Ion

• Protein

True or False: The difference between diffusion and osmosis is that the solute moves in diffusion, whereas water solvent moves in osmosis.

• True

• False

When a cell is in a _ solution, water moves into the cell to dilute the higher solute concentration within the cell.

• Hypotonic solution

• Hypertonic solution

• Isotonic solution