Energy in Ecosystem Review

All of the food energy that passes between organisms comes from the _________.

• Earth

• Moon

• Producers

• Sun

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The arrows in a food web and food chain show ....

• how food energy is passed from one organism to the other.

• how one organism eats another.

• how to get back to the beginning of a food web and food chain.

• how organisms are better than other organisms.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Plant cells are able to turn sunlight into food through a process called ______.

• photosynthesis

• photographing

• photorealism

• photogenics

A student is collecting a gas given off from a plant in bright sunlight at a temperature of 27 degrees Celsius. The gas being collected is likely:

• Oxygen

• Carbon Dioxide

• Water

What is the correct equation for cellular respiration?

• 6O₂ + C₆H₁₂O₆ -> 6CO₂ + 6H₂O + Energy
• 6O₂ + C₆H₁₂O₆ + Energy -> 6CO₂ + 6H₂O
• 6CO₂ + 6H₂O -> 6O₂ + C₆H₁₂O₆ + Energy
• 6CO₂ + 6H₂O + Energy -> 6O₂ + C₆H₁₂O₆

Tags

NGSS.MS-LS1-7

The purpose of cellular respiration is to:

• Make water (H₂0)

• Release energy (ATP) from glucose (sugar)

• Make Oxygen (0₂)

Plants and animals exchange materials through a process of photosynthesis and respiration.  Which of these statements is true?

• The products of photosynthesis are also the products of respiration.
• The products of photosynthesis are also the reactants of respiration.

Tags

NGSS.MS-LS1-7

What would happen to an organism if the mitochondria stopped working?

• The organism would die because of the lack of ATP production.

• The organism would become hyperactive because of the excessive ATP production.

• The organism would have to take in large amounts of water to prevent dehydration.

Students placed yeast cells into a test tube. They added sugar solution to the test tube and placed a rubber stopper on the end. They left the test tube at room temperature to examine the next day. Students researched yeast and discovered that yeast are single-celled fungi that contain many mitochondria, but chloroplasts are absent. The teacher asks students to form a hypothesis to address the experimental question, “What gas will the yeast produce in the test tube over the next 24 hours?”

Based on this information, what hypothesis is valid?

• Carbon dioxide will be produced due to cellular respiration.

• Carbon dioxide will be produced due to photosynthesis.

• Oxygen will be produced due to cellular respiration.

What type of respiration requires oxygen?

• Aerobic
• Anaerobic

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3