CFA #3 Review

Which cellular structure helps maintain homeostasis by controlling substances that enter and exit the cell.

• vacuole

• cell wall

• cell membrane

• mitochondria

What will happen to a cell that is placed in a hypotonic solution?

• water will exit the cell causing it to shrink

• water will enter the cell causing it to swell

• salt will exit the cell causing it to shrink

• salt will enter the cell causing it to swell

Which component of the cell membrane functions in active transport?

• carbohydrates

• protein

• cholesterol

• phospholipid

Which process moves an ion across a cell membrane against the concentration gradient requiring energy?

• diffusion

• osmosis

• facilitated diffusion

• active transport

How would cutting down a forest affect the level of carbon dioxide in the atmosphere?

• It will decrease because of increased respiration

• It will increase because of decreased photosynthesis

• It will decrease because of decreased photosynthesis

• It will remain constant as respiring animals remove the carbon dioxide

What products are produced during photosynthesis?

• chloride and sugar

• oxygen and sugar

• nitrogen and sugar

• carbon dioxide and sugar

Which action would increase the amount of oxygen in a fish tank?

• Adding more fish

• Adding more plants

• Placing food in the tank

• Placing a water heater in the tank

Which of these is a product of photosynthesis and a requirement for cellular respiration?

• carbon dioxide

• glucose

• water

• sunlight

What form of carbon do plants take on during photosynthesis?

• glucose molecule

• carbon dioxide

• single carbon atoms

• complex organic compounds

Living organisms require energy for biological processes. Chemical energy in a plant cell is:

• produced in vacuoles

• converted from solar energy

• developed by centrioles

• stored as kinetic energy