Chemical Reactions and Photosynthesis

Which of the following best summarizes photosynthesis?

• A chemical reaction involving nitrogen and other atmospheric gases

• An adaptation of plants that allows them to add nutrients to the soil

• A chemical reaction in which plants produce sugar using the energy of sunlight

• An exchange of gases between animals and the air or water of their habitat.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

An incomplete diagram of the process of photosynthesis is provided. What is the missing component that correctly replaces the question mark to complete the diagram?

• soil nutrients

• water

• solar energy

• glucose

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

The concentration of carbon dioxide in parts per million (ppm) was measured for a closed container in several situations. Which of the following data collected would demonstrate the action of photosynthesis?

• When multiple plants were put into the container, carbon dioxide concentrations never got above 1,000 ppm.

• As the temperature in the container increased, the carbon dioxide concentrations went from 800 to 1,000 ppm.

• Plants in the container kept in darkness did not lower the concentration of carbon dioxide below 800 ppm.

• When the container included a plant exposed to light, carbon dioxide concentrations went from 800 to 600 ppm.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Students are provided with a choice of two solutions. Each one is used to test for the presence of a different chemical. How could the students use one of these solutions to gather evidence for the action of photosynthesis?

• Use Fehling's solution on plant leaves that have been exposed to light

• Pump the air from a closed container containing a plant through a sample of lime water

• Use Fehling's solution on plant roots of several different plants after boiling them for several minutes

• Grind up all of the parts of the plant, expose to heat, collect the gas, and use limewater to test it

Tags

NGSS.MS-LS1-6

What is the relationship between solar energy and plant growth?

• As solar energy increases, plant growth decreases

• As solar energy decreases, plant growth increases

• As solar energy increases, plant growth increases

• There is no relationship between solar energy and plant growth

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NGSS.MS-LS1-5

NGSS.MS-LS1-6

To survive in a closed space like Biosphere 2, plants would need _____________

• Sunlight, Oxygen, and Glucose

• Sunlight, Carbon dioxide, and Oxygen

• Carbon dioxide, Water, and Glucose

• Carbon dioxide, Sunlight, and Water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

What is the relationship between time of year and amount of carbon dioxide in the atmosphere?

• As the time of year gets warmer, the carbon dioxide concentrations increase

• As the time of year gets cooler, the carbon dioxide concentrations decrease

• As the time of year gets warmer, the carbon dioxide concentrations decrease

• There is no relationship between time of year and carbon dioxide concentrations.

Which organelle is responsible making food (glucose) for the plant using sunlight?

• Chlorophyll

• Nucleus

• Chloroplast

• Mitochondria

Tags

NGSS.MS-LS1-6

What is the green pigment that "traps" sunlight?

• Chlorophyll

• Chloroplasts

• Photosynthesis

• ATP

Tags

NGSS.MS-LS1-6

Which statement is the most likely reason photosynthesis does not occur in the deep aphotic zone?

• Not as much dissolved oxygen from the surface reaches the deepest aphotic zone.

• Not enough soil is present to support plant growth in the deepest aphotic zone.

• Water pressure limits the survival of animals in the deepest aphotic zone.

• Sunlight for photosynthesis does not reach the deepest aphotic zone.

Tags

NGSS.MS-LS1-6