Exploring Photosynthesis and the Scientific Method

Which of the following best describes the role of chlorophyll in photosynthesis?

• It absorbs sunlight to provide energy for the process.

• It transports water from the roots to the leaves.

• It converts glucose into oxygen.

• It stores energy in the form of ATP.

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NGSS.MS-LS1-6

In an experiment to test the effect of light intensity on the rate of photosynthesis, which of the following would be the independent variable?

• The amount of water given to the plant.

• The type of plant used.

• The light intensity.

• The rate of photosynthesis.

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NGSS.MS-LS1-6

Explain how the structure of a leaf is adapted to its function in photosynthesis.

• The thick cuticle prevents water loss, aiding in photosynthesis.

• The large surface area maximizes light absorption.

• The stomata are always closed to prevent gas exchange.

• The veins are only used for structural support.

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NGSS.MS-LS1-6

Which of the following is a logical hypothesis for an experiment on the effect of carbon dioxide concentration on photosynthesis?

• If the carbon dioxide concentration increases, then the rate of photosynthesis will decrease.

• If the carbon dioxide concentration increases, then the rate of photosynthesis will increase.

• If the carbon dioxide concentration decreases, then the rate of photosynthesis will remain the same.

• If the carbon dioxide concentration decreases, then the rate of photosynthesis will increase.

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NGSS.MS-LS1-6

Which part of the plant is primarily responsible for absorbing water and nutrients from the soil?

• Leaves

• Stems

• Roots

• Flowers

During photosynthesis, what is the primary function of the stomata?

• To absorb sunlight.

• To exchange gases with the environment.

• To transport nutrients throughout the plant.

• To store glucose.

Tags

NGSS.MS-LS1-6

Design an experiment to test how different colors of light affect the rate of photosynthesis in plants. What would be a key component of your experimental setup?

• Use a single plant and change the light color every hour.

• Use multiple plants, each exposed to a different color of light.

• Use one color of light and measure the plant's growth over a month.

• Use natural sunlight and measure the rate of photosynthesis.

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NGSS.MS-LS1-6

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What is the main purpose of the scientific method in conducting experiments?

• To prove a hypothesis correct.

• To systematically investigate and understand phenomena.

• To ensure all experiments have the same outcome.

• To make experiments more complicated.

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NGSS.MS-PS2-2

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How does the process of photosynthesis demonstrate the concept of energy transformation?

• It transforms chemical energy into light energy.

• It transforms light energy into chemical energy.

• It transforms thermal energy into mechanical energy.

• It transforms kinetic energy into potential energy.

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NGSS.MS-LS1-6

Which of the following statements best explains why plants are considered producers in an ecosystem?

• They consume other organisms for energy.

• They produce oxygen as a waste product.

• They convert sunlight into chemical energy through photosynthesis.

• They decompose organic material.

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NGSS.MS-LS1-6