2021 Food Science - Science Olympiad

Why is yeast used to bake bread? 

• The waste gas, CO_2, makes bread rise
• The alcohol produced makes bread dangerous
• The yeast consumes O₂, causing bread to rise

Cellular respiration is called an aerobic process because it requires_____

• exercise

• light

• glucose

• oxygen

The term "anaerobic" means :

• with oxygen.

• without oxygen.

• alive.

• nonliving.

Fermentation is cellular respiration without which molecule?

• CO₂
• O₂
• C₆H₁₂O₆

The waste gas given off by cellular respiration is?

• oxygen
• carbon dioxide
• nitrogen
• methane

Aerobic respiration occurs in which organelle?

• chloroplast

• mitochondria

• ribosome

• nucleus

Cellular Respiration's goal is to

• make water
• make ATP
• make glucose
• make  oxygen

Which of the following equation explains cellular respiration?

• sugar+water -> salt+sunlight

• sugar+oxygen -> water+carbon dioxide+energy

• water+carbon dioxide+sunlight -> sugar+oxygen

• Sugar+energy -> water+carbon dioxide+oxygen

Which statement best compares aerobic and anaerobic respiration? 

• Less ATP is generated during anaerobic respiration than during aerobic respiration. 
• More water is generated during anaerobic respiration than during aerobic respiration. 
• More oxygen is generated during anaerobic respiration than during aerobic respiration. 
• Less lactic acid is generated during anaerobic respiration than during aerobic respiration. 

The two type of fermentation are alcohol and _____________ acid fermentation. 

• lactic
• sulfuric
• hydrochloric
• acetic