Unit 3 quiz c - Plant Transport and Photosynthesis

What is the equation for photosynthesis?

• Carbon dioxide + water → glucose + oxygen

• Oxygen + glucose → carbon dioxide + water

• Glucose + oxygen → carbon dioxide + water

• Water + oxygen → glucose + carbon dioxide

What is the role of spongy mesophyll in leaves?

• To allow gases to diffuse in and out of cells

• To absorb sunlight

• To transport water

• To store nutrients

What shape are guard cells?

• Kidney-shaped

• Round

• Square

• Triangular

What happens at the stomata during the day?

• Gas exchange and loss of water by evaporation

• Photosynthesis

• Nutrient absorption

• Water absorption

What is the control in the practical experiment with seeds?

• Dead or boiled seeds

• Living germinating seeds

• Cotton wool

• Thermometer

What do guard cells do when there is a lot of water available?

• Fill and open stomata

• Close stomata

• Shrink and close

• Absorb nutrients

What is the initial step in the practical experiment with seeds?

• Measure initial temperature

• Leave seeds for a few days

• Put a thermometer in cotton wool

• Use two vacuum flasks

What is the main gas released during respiration in plants?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

What is the role of the thermometer in the seed experiment?

• To measure temperature

• To provide heat

• To absorb moisture

• To support the seeds

What is the main purpose of the practical experiment with seeds?

• To investigate the evolution of heat from respiring seeds

• To measure seed growth

• To test seed viability

• To observe seed germination