Energy Flow

Susan has just moved into a new house. For some reason, she cannot get the grass to grow in her yard. She decides to grow small amounts of grass inside her house as part of an experiment. The first group of grass is exposed to a light intensity of 400. The second group is exposed to a light intensity of 1200.

• The plants at a light intensity of 400 will grow more quickly than the plants at 1200.

• The

  plants at a light intensity of 400 will produce more glucose than the plants

  at 1200.

• The plants at a light intensity of 1200 will perform only stage 1 of photosynthesis.

• The plants at a light intensity of 1200 will produce more oxygen than the plants at 400.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS1-5

Which statement best expresses the relationship between photosynthesis and cellular respiration?

• The products of cellular respiration are the products of photosynthesis.

• The products of photosynthesis are the products of cellular respiration

• The products of cellular respiration are the reactants of photosynthesis

• The products of photosynthesis are not part of cellular respiration.

Tags

NGSS.MS-LS1-6

Which of the following do plant cells need for photosynthesis to take place?

• glucose

• light energy

• oxygen

• chemical energy

Tags

NGSS.MS-LS1-6

A chemical reaction is shown in the expression above.

Which statement correctly explains this reaction?

• Water is used to produce glucose during photosynthesis

• Oxygen is used to release energy during photosynthesis

• Glucose is broken down to release energy during cellular respiration

• Carbon dioxide is broken down to release energy during cellular respiration?

Tags

NGSS.MS-LS1-7

What are the products of photosynthesis?

• carbon dioxide and water

• oxygen and glucose

• carbon dioxide and glucose

• oxygen and water

Tags

NGSS.MS-LS1-6

which statement about plants is the most accurate?

• Plants undergo neither photosynthesis nor cellular respiration

• Plants undergo both photosynthesis and cellular respiration

• Plants undergo photosynthesis but not cellular respiration

• Plants undergo cellular respiration but not photosynthesis

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following best describes what occurs at the arrow labeled 1?

• Organisms inhale oxygen and exhale carbon dioxide.

• Decaying organisms give off carbon dioxide as they decay

• Organisms and waste products become fossil fuels and store Carbon

• Dead organisms release oxygen that is used by plants in photosynthesis.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Danielle lives with her family on a farm. In school, she has been learning about the nitrogen cycle in science class. She knows that her father spread a nitrogen-based fertilizer on a patch of grass recently where the cows graze in the field. Why was it necessary to add a nitrogen-based fertilizer to the soil where there was a patch of grass?

• because nitrogen can only be "fixed" by lightening

• because plants cannot use "free" nitrogen

• because bacteria released all of the nitrogen into the air

• because there are no decomposers on the farm

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which part of the carbon cycle is the most likely cause for the change in atmospheric carbon dioxide?

• industry

• waste products

• animals

• dead plants

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

Johanna learns that the Law of Conservation of Energy states that energy is conserved, never lost. Which of the following best describes the process by which energy transfers from plants to animals?

• carbonation

• decomposition

• cellular respiration

• photosynthesis

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS1-7