Energy Transformation in Organisms

What do the arrows represent in the diagram of a food chain?

• The order of size of organisms in the ecosystem

• The importance of organisms in the chain

• The direction of energy flow through organisms

• The energy increases as you move from left to right

Tags

NGSS.MS-LS2-3

Animals are consumers, meaning they need to eat food for energy because they cannot make their own. Which energy transformation is taking place when an animal eats food so it can keep warm?

• Mechanical to thermal

• Mechanical to radiant

• Chemical to thermal

• Radiant to chemical

Tags

NGSS.MS-LS1-7

Which of the following energy transformations occur when humans use energy from food to exercise?

• Mechanical to thermal to chemical

• Thermal to electrical to mechanical

• Radiant to mechanical to thermal

• Chemical to mechanical to thermal

What kind of energy is necessary to initiate the process of photosynthesis?

• Radiant

• Heat

• Electrical

• Wind

During photosynthesis, energy is stored in the form of —

• Oxygen

• Carbon Dioxide

• Glucose

• Water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What happens to the solar energy absorbed by plants during photosynthesis?

• It is recycled by plants and returned to the atmosphere.

• It is converted into oxygen and glucose.

• It is stored as heat within the plant for cellular functions.

• It is transformed into chemical energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which type of energy is formed during the process of photosynthesis?

• Chemical

• Radiant

• Thermal

• Kinetic

Tags

NGSS.MS-LS1-6

A student prepares for a five-mile run so she eats a nutritious meal three hours before the run. Which correctly illustrates the transformation of energy from eating the meal to the five mile run?

• Chemical to Thermal

• Thermal to Mechanic

• Thermal to Mechanic to Chemical

• Chemical to Mechanical to Thermal

Tags

NGSS.HS-LS1-7

A group of students are investigating the transformation of energy during digestion. The initial temperature of hydrogen peroxide in a beaker is measured and recorded. Small pieces of liver are placed into a beaker of hydrogen peroxide and the temperature is measured and recorded every 30 seconds over a two minute time period. What energy transformation is under investigation in the scenario above?

• Thermal energy transformed into chemical energy

• Chemical energy transformed into thermal energy

• Chemical energy transformed into mechanical energy

• Mechanical energy transformed into thermal energy

Tags

NGSS.MS-PS3-4

What do the arrows indicate in a food web?

• What eats what

• Where the energy is being transferred

• How the animals are related

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3