Mod Unit 3 Biology Test - Cellular Energetics

What is the key difference between active and passive transport?

• Active transport does not require energy, while passive transport does
• Active transport requires energy, while passive transport does not
• Active transport does not use protein channels, but passive transport does

The image shows water (red liquid) moving across a semipermeable membrane. Solute particles are shown as purple circles. The process of water molecules diffusing from an area of high concentration to low concentration is called...

• Osmosis
• Active transport

What is the main function of phospholipids in a cell?

• form the cell membrane
• contain genetic information
• increase the rate of reactions

Which region of the phospholipid is hydrophobic?

• A
• B

Which region of the phospholipid is hydrophilic?

• A
• B

What step in cellular respiration is glucose broken down into pyruvate?

• Krebs Cycle
• Glycolysis
• The Electron Transport Chain

How many ATP molecules are produced in the electron transport chain?

• 2-4
• 4-6
• 10-12
• 32-34

Plants get the energy they need for photosynthesis by absorbing

• high-energy sugars.
• chlorophyll

• sunlight.

A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27C (81F). The gas being collected is probably:

• oxygen
• carbon dioxide
• glucose

What is a product of the Calvin cycle?

• oxygen gas
• Glucose

• carbon dioxide gas