Yeast Quiz

What gas is produced in the cookie bag by the yeast?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

What process is called when an organism uses nutrients for energy and produces waste products?

• Respiration

• Metabolism

• Photosynthesis

• Digestion

Tags

NGSS.MS-LS1-7

What evidence shows that the yeast is using energy?

• The color of the yeast

• The smell of the yeast

• The bubbles and gas in the bag

• The temperature of the bag

Tags

NGSS.MS-LS1-7

What does the yeast need to conduct its life functions?

• Plain water

• Oxygen

• Sunlight

• Nutrients from food

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Why is the yeast with plain water not active?

• It is too cold

• It has too much energy

• It is not using energy

• It is asleep

What is a source of energy for yeast?

• Water

• Light

• Cookie

• Air

What activates the yeast?

• Warmth, water, and food

• Water and minerals

• Cold, water, and food

• Warmth and light

How can you know if yeast needs all three additions to the environment to become active?

• By checking the color

• By testing each addition separately

• By asking a scientist

• By leaving it alone

Tags

NGSS.MS-LS1-5

What is the waste gas our cells produce when they are active?

• Methane

• Carbon monoxide

• Carbon dioxide

• Oxygen

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3