The Science of Photosynthesis and Plant Survival

Ryan learns about photosynthesis, the process by which plants make their own food using sunlight, water, and carbon dioxide. The video explains how plants use chlorophyll to absorb sunlight and convert it into glucose, releasing oxygen as a byproduct. A quiz at the end reinforces the learning objectives.

Why did Ryan stop watering the plants?

• It started raining.

• He got tired.

• He ran out of water.

• The plants were already wet.

What is the process called by which plants make their own food?

• Respiration

• Fermentation

• Photosynthesis

• Digestion

Which of the following is NOT needed for photosynthesis?

• Carbon dioxide

• Oxygen

• Water

• Sunlight

What do plants produce as a result of photosynthesis?

• Carbon dioxide and water

• Protein and oxygen

• Starch and nitrogen

• Glucose and oxygen

Through which part of the plant does carbon dioxide enter?

• Roots

• Stomata

• Flowers

• Stem

What is the role of chlorophyll in photosynthesis?

• Absorbs water

• Absorbs sunlight

• Releases oxygen

• Stores glucose

What gas do plants release during photosynthesis?

• Hydrogen

• Carbon dioxide

• Nitrogen

• Oxygen

What is the sugar produced by plants during photosynthesis called?

• Glucose

• Lactose

• Fructose

• Sucrose

Which of the following is a byproduct of photosynthesis?

• Nitrogen

• Oxygen

• Methane

• Carbon dioxide

What should we do to ensure we have enough oxygen on Earth?

• Reduce water usage

• Increase carbon emissions

• Protect plants

• Cut down trees