G11 New Bio Ch 4 (4.2)

In gas exchange, which direction does diffusion occur?

• From lower to higher
• From higher to lower
• In all directions
• None of the above

What is the primary gas used in cell respiration?

• Carbon Dioxide
• Oxygen
• Hydrogen
• Nitrogen

What is the primary waste gas produced in cell respiration?

• Oxygen
• Carbon Dioxide
• Hydrogen
• Nitrogen

What is the term for the process of obtaining oxygen and expelling carbon dioxide?

• Photosynthesis
• Gas exchange
• Osmosis
• Fermentation

How do plants primarily obtain the gases they need for respiration and photosynthesis?

• Through their roots
• Through their stems
• Through their flowers
• Through their leaves

During daylight hours, what gases are exchanged by plants through stomata and lenticels?

• Oxygen and Nitrogen
• Carbon Dioxide and Oxygen
• Oxygen and Carbon Dioxide
• Water Vapor and Oxygen

What is the function of stomata in plants?

• Regulate temperature
• Exchange gases
• Produce energy
• Store water

What specialized cells surround stomata and regulate their opening and closing?

• Epidermal cells
• Root cells
• Guard cells
• Photosynthetic cells

How do guard cells control the opening and closing of stomata?

• By photosynthesis
• By turgor pressure
• By releasing water vapor
• By osmosis

What is the primary gas exchanged through stomata during photosynthesis of plants?

• Oxygen
• Carbon Dioxide
• Nitrogen
• Hydrogen