QT3 Review

What do bacteria and sea otters have in common?

• Bacteria and sea otters live only in cold water.

• Bacteria and sea otters eat both plants and animals.

• Bacteria and sea otters are parasites.

• Bacteria and sea otters are made of cells.

Which of the following is ​NOT a part of homeostasis?

• having a nucleus

• extracting energy from food

• getting rid of waste

• cell respiration

What BEST explains a way in which cells maintain homeostasis?

• The cell extracts and consumes all energy from food molecules.

• The cell allows molecules in to extract energy and allows molecules out to eliminate waste.

• Individual cells do not maintain homeostasis for the organism.

• The cell does not allow molecules in but does allow molecules out to eliminate waste.

Maintaining homeostasis requires many cell processes happening at the same time. Not all cells perform all of the same processes. Which of the actions below is performed by all cells to maintain homeostasis?

• They divide rapidly into many specialized cells.

• They use light energy to produce food molecules.

• They obtain energy from nutrients and remove waste products.

• They combine with another cell to increase in size.

Why are the vacuoles in plant cells different from the vacuoles found in animal cells?

• Animals need to move materials in and out of cells, while plants do not.

• Animals need to store proteins, while plants do not.

• Plants need to store more water and nutrients than animals.

• Plants need more energy than animals do.

Sam is looking at a group of cells under a microscope. He notices that the cells have a nucleus and mitochondria. What other organelle should Sam look for to determine what type of cell he is looking at?

• cytoplasm

• ribosomes

• cell membrane

• cell wall

What organelle controls what enters and exits the cell?

• cell wall

• cell membrane

• nucleus

• mitochondria

The transfer of energy that takes place between gravitational potential energy and kinetic energy on a roller coaster demonstrates which law?

• The Law of Conservation of Energy

• The Law of Conservation of Matter

• The Law of Conservation of Living Things

• The Law of Conservation of Mechanical Energy

Alexander hooks a rubber band around his thumb and forefinger. He moves his fingers apart, stretching the rubber band. With a quick, sudden motion, he bends his thumb forward so that the rubber band slips off. What happens next?

• The elastic potential energy stored in the rubber band changes to heat energy.

• The elastic potential energy stored in the stretched rubber band changes to kinetic energy.

• The chemical potential energy stored in Joshua’s body changes to kinetic energy.

• The chemical potential energy stored in Joshua’s body changes to elastic potential energy in the rubber band.

Which statement BEST explains why a bouncing basketball will not remain in motion forever?

• The energy is transferred to heat and chemical energy.

• The energy is transferred to light and potential energy.

• The energy is used up and destroyed.

• The energy is transferred to sound and heat energy.