Quizizz Week #14

Energy in this ecosystem passes directly from the Sun to

• herbivores

• heterotrophs

• consumers

• autotrophs

Identify 2 raw materials of photosynthesis

• glucose & oxygen

• oxygen & carbon dioxide

• carbon dioxide & water

• water & glucose

State one reason why photosynthesis is necessary for animals to survive

• it recycles the oxygen and turns it into carbon

• it recycles the carbon and turns it into oxygen

• it recycles the carbon dioxide and turns it into oxygen

• It recycles the oxygen and turns it into carbon dioxide

In some single-celled protozoans living in fresh water, such as the paramecium, contractile vacuoles are organelles used to pump excess water out of the cell. Explain why a paramecium would require contractile vacuoles while a similar protozoan living in salt water would not.

• When an organism lives in salt water, the water will continually diffuse into the cell

• When an organism lives in salt water, the water will continually diffuse out of the cell

• When an organism lives in fresh water, the water will continually diffuse out of the cell

• The cell membrane will not allow the water to enter of leave the cell

Which describes what would be expected to occur in the potato cells, with regard to both the starch and water molecules?

• More water will move into the cell than will leave the cell. Starch will remain inside the potato cell.

• More water will leave the cell than will enter. Starch will move out of the cell.

• Water content of the cell will not change. Starch will move out of the cell.

• More water will leave the cell than will enter. Starch will remain inside the potato cell.

Which statement correctly describes a possible result if starch indicator is added to the water in the beaker one hour after the potato cube was added?

• The indicator solution would turn to an amber color in the water if starch molecules were present in the water in the beaker.

• The indicator would remain amber in color if starch molecules were not present in the water in the beaker.

• The indicator would change to a black color if starch molecules were not present in the water in the beaker.

• The indicator solution would remain black in color if starch molecules were present in the water in the beaker.

Before placing the potato in the beaker, the student used an electronic balance to determine the mass of the potato cube. The mass of the cube was determined again after it was in the beaker for an hour. Describe how this information could specifically be used to determine if water moved during the investigation.

• If the mass increased, then water moved out

• If the mass increased, then water moved in

• If the mass decreased, then water moved in

• If the mass did not change water moved out.

Based on the information given, state one way the bag or its contents will have changed by the next day.

• The artificial cell would get larger because the water would diffuse into the bag

• The artificial cell would get smaller because the water would diffuse into the bag

• The artificial cell would get larger because the water would diffuse out the bag

• The artificial cell would get smaller because the water would diffuse out the bag

A fruit fly is classified as a consumer rather than as a producer because it is unable to

• reproduce asexually

• synthesize its own food

• release energy stored in organic molecules

• remove wastes from its body

A child with cystic fi brosis has an altered protein in his cells that stops chloride ions from leaving the cells. This protein most likely affects the functioning of

• cell membranes

• nuclei

• mitochondria

• ribosomes