SC.8.L.18.4 - Living Systems

Photosynthesis is the process by which a plant transforms solar energy into chemical energy. Which of the following correctly describes the roles of each of the materials involved in photosynthesis?

• Sunlight is captured by chlorophyll, combines with glucose and oxygen molecules, and creates carbon dioxide molecules. Any remaining atoms form oxygen and water molecules that are released as waste products.

• Sunlight is captured by chlorophyll, combines with carbon dioxide and water molecules, and creates glucose molecules. Any remaining atoms form oxygen and water molecules that are released as waste products.

• Sunlight is captured by chlorophyll, combines with oxygen and water molecules, and creates glucose molecules. Any remaining atoms form carbon dioxide and water molecules that are released as waste products.

• Sunlight is captured by chlorophyll, combines with water and carbon dioxide molecules, and creates glucose molecules. Any remaining atoms form carbon dioxide and water molecules that are released at waste products.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Sarah believes that only animals undergo cellular respiration. Drew believes that both plants and animals undergo cellular respiration. Only one student is correct. Which answer choice best explains why?

• Drew is correct because both plants and animal cells need chemical energy to carry out cellular processes.

• Sarah is correct because plant cells do not need chemical energy for cellular processes and animal cells do.

• Drew is correct because plants need to store more chemical energy for consumers and animals need chemical energy for cellular processes.

• Sarah is correct because plant cells already have chemical energy stored in them and animal cells need chemical energy for cellular processes.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Jeremy was asked to describe the impact of humans on the carbon cycle. He answered: “When people drive cars they add more carbon dioxide to the atmosphere.” Jeremy only received partial credit for his answer. Which of the following answers could have received full credit?

• Humans add carbon dioxide to the atmosphere when they burn fuel in cars and factories, and through respiration. Humans take in carbon from the food they eat and when they breathe in carbon dioxide. They return carbon to the soil through garbage decomposition.

• Humans add carbon dioxide to the atmosphere when they undergo cellular respiration, burn fuel in cars and factories and burn biomass. Humans take in carbon from the food they eat. They return carbon to the soil through waste products and decomposition

• Humans add carbon dioxide to the atmosphere when they burn fuel in factories and other biomass sources. Humans take in carbon dioxide through respiration. They return carbon to the soil through biomass decomposition.

• Humans add carbon dioxide to the atmosphere when they burn fuel and other biomass sources. Humans take in carbon from the food they eat and from the soil and return it back to the soil through waste products and decomposition.

Tags

NGSS.MS-ESS3-4

What are the reactants of photosynthesis?

• Glucose and oxygen

• Sunlight, oxygen and water

• Sunlight, carbon dioxide, and water

• Glucose and carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following best explains the relationship between photosynthesis and cellular respiration?

• Photosynthesis produces the energy necessary for performing cellular respiration.

• Photosynthesis produces the light energy necessary for performing cellular respiration.

• Cellular respiration uses the glucose produced by photosynthesis to make energy.

• Cellular respiration uses the glucose produced by photosynthesis to make glucose as a source of food.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3