Keystone Review Quiz 1: Cell Structure and Function

Mammals have multiple levels of organization. Which of the following pairs lists two consecutive levels from lesser to greater complexity?

• Cell, tissue

• organism, cell

• tissue, organ system

• organ system, organ

Some prokaryotes have plasmids that contain genetic information. Where is such information found in eurkaryotic cells?

• stored in vacuoles

• suspended in cytoplasm

• bundled in chrmomsomes

• embedded in the endoplasmic reticulum

Which of these activities is carried out by the cells of only some organisms?

• getting rid of wastes

• maintaining homeostasis

• performing photosynthesis

• responding to external changes

The structure of certain cells in the human body enables them to change in length and shape. Which kind of tissue is made up of these cells?

• muscle

• nervous

• epithelial

• connective

A student examines a living cell through a microscope. Observing which of the following would indicate that the cell is eukaryotic?

• cell wall

• cytoplasm

• plasma membrane

• membrane-bound nucleus

Which describes an organism's use of thermoregulation to maintain homeostasis?

• A snake suns itself on a rock.

• A bird's heart beats faster when it flies.

• A tree releases water vapor through stomata in its leaves.

• Water passes through the plasma membrane of a bacterium.

Which shows the pathway of proteins from manufacture to distribution in a eukaryotic cell?

• ribosome --> endoplasmic reticulum --> Golgi apparatus

• endoplasmic reticulum -->ribosome --> Golgi apparatus

• ribosome --> Golgi apparatus --> endoplasmic reticulum

• endoplasmic reticulum --> Golgi apparatus --> ribosome

A person exercises vigorously in the sun and sweats profusely. How would the person's kidneys respond to regulate water?

• by contracting muscle cells in the skin

• by relaxing muscle cells in the skin

• by decreasing the amount of water to be excreted

• by increasing the amount of water to be excreted

Which statement describes a response of the human body to a need for increased energy?

• slower breathing to increase the concentration of carbon dioxide in the blood

• faster breathing to increase the concentration of oxygen in the blood

• slower breathing to decrease the concentration of oxygen in the blood

• faster breathing to decrease the concentration of carbon dioxide in the blood

Which response increases body temperature?

• dilation of blood vessels

• release of ADH

• sweating

• shivering