Organisms and Environments QUIZ 1

Which of the following is true about homeostasis?

• occurs only at the cellular level

• is a process unique to eukaryotes

• is the maintenance of internal conditions

• all of the above

Which of the following statements is true?

• To be classified as living, an organism must be made of two or more cells.

• During mitosis, a parent cells splits into two identical daughter cells.

• The growth of an organism is usually unpredictable and random.

The growth of a plant toward light is an example of

• response

• adaptation

According to cell theory

• all cells are similar in chemical composition and energy conversion

• all living organisms are composed of cells

• all cells reproduce to create new cells

True or False: During reproduction cells become specialized to perform certain functions.

• True

• False, this describes differentiation

• False, this describes mitosis

Which of the following are not eukaryotes?

• bacteria

• fungi

• plants

• animals

True or False: The structure of a cell membrane is made out of two layers of phospholipids.

• True

• False

True of False: The function of a cell membrane is to let materials in and out of cell.

• True

• False

Which of the following statements is true?

• Lysosomes and chloroplasts are unique to plant cells.

• A nerve cell contains more mitochondria than a muscle cell.

• Homeostasis on the cellular level is controlled by the cell membrane.

• Instead of a cell membrane, plant cells have cell walls.

What do all cells do?

• reproduce

• contain hereditary information

• break down food into energy

• have a cell membrane

• have a nucleus