4.3 Photosynthesis

Mason is observing a plant in his garden. He wonders, what is the role of light energy in photosynthesis?

• It is stored as mechanical energy

• It is converted into chemical energy

• It is used to produce heat

• It is converted into sound energy.

During a science experiment, Aria observed that plants convert sunlight into _______.

• Chemical energy

• Mechanical energy

• Thermal energy

• Electrical energy

Luna and Ava are discussing energy conservation. Which of the following statements is true about energy conservation?

• A) Energy can be created and destroyed

• B) Energy is never created or destroyed, but it can change form

• C) Energy is always increasing

• D) Energy is only found in living organisms.

What is potential energy?

• A) Energy of motion

• B) Stored energy in chemical bonds

• C) Energy from the sun

• D) Energy from food

Ava is conducting an experiment in her biology class to understand how plants store energy. She learns that the chemical energy produced in photosynthesis is stored in the form of ______.

• ATP

• Glucose

• Lipids

• Proteins

Ava is conducting an experiment in her school lab to understand how plants make their own food. What is the main purpose of photosynthesis?

• To produce heat

• To produce glucose

• To produce sound

• To produce light.

During a science experiment, Samuel is observing the process of photosynthesis in a plant. What role does water play in this process?

• It is a product

• It is an input

• It is a catalyst

• It is not involved.

During a science experiment in class, Anika observed bubbles forming on the leaves of an aquatic plant. Which gas is released as a byproduct of photosynthesis?

• Carbon Dioxide

• Oxygen

• Nitrogen

• Hydrogen

During a science experiment, William observed the process of photosynthesis in a plant. Which of the following is not a product of photosynthesis?

• Oxygen

• Glucose

• Water

• Carbon Dioxide

During a biology experiment, Oliver and Isla are studying photosynthesis. They want to know what are the products of the light-dependent reactions that carry energy to the next phase?

• Glucose and oxygen

• ATP and NADPH

• CO2 and H2O

• Electrons and protons