Energy and Chemical Processes Quiz

What is the primary function of metabolism in cells?

• To store genetic information

• To facilitate chemical reactions and provide energy

• To regulate body temperature

• To provide structural support

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-7

NGSS.HS-LS2-5

What is the average body temperature of a human in Celsius?

• 37.0°C

• 38.6°C

• 43.5°C

• 39.2°C

Which unit is larger, a calorie or a joule?

• It depends on the context

• Joule

• Calorie

• They are equal

What is the specific heat of water in cal/g·°C?

• 0.492

• 1.00

• 0.578

• 0.215

What is the heat of fusion of water in cal/g?

• 123.5

• 540

• 45.2

• 79.9

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is an exothermic process?

• Boiling water

• Condensing steam

• Sublimation of dry ice

• Melting ice

What is the energy content per gram of fats?

• 4 kcal/g

• 5 kcal/g

• 9 kcal/g

• 7 kcal/g

What is the relationship between energy and heat?

• Energy and heat are unrelated

• Heat is the transfer of energy due to temperature differences

• Energy is the transfer of heat

• Heat is the ability to do work

Tags

NGSS.HS-PS3-4

What is the specific heat of copper in cal/g·°C?

• 0.578

• 0.394

• 0.215

• 0.092

Which of the following exercises expends the most energy per hour for a 180-pound person?

• Aerobics, low-level

• Yoga

• Walking upstairs

• Golfing, with cart