Unit 4 Cell Work Test Review

What is the original source of energy in the food you eat?

• sugar

• plants

• sun

• photosynthesis

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Why are leaves red in the fall?

• chlorophyll absorbs red in the fall, rather than green

• chlorophyll breaks down because there is less sunlight

• mitochondria breaks down because there is less sunlight

• chlorophyll reflects green light in the fall

​ ​ The Calvin cycle is the ​ (a)   (does not need light) step of photosynthesis and happens in the ​ (b)   .

• light-dependent
• thylakoid membrane
• light-independent
• stroma

The original energy for photosynthesis to begin comes from:

• water

• carbon dioxide

• light

• ATP

Tags

NGSS.HS-LS1-5

This equation represents which process?

• photosynthesis

• cellular respiration

• Calvin cycle

• Krebs cycle

Tags

NGSS.HS-LS1-7

Lactic acid fermentation can be modeled by which equation?

• Lactic acid + NADH -> Pyruvic acid NADH

• Lactic acid + NADH -> Pyruvic acid + NAD+

• Pyruvic acid + NAD+ -> Lactic acid + NADH

• Pyruvic acid + NADH -> Lactic acid + NAD+

Tags

NGSS.HS-LS2-3

In the Krebs cycle, ​ (a)   joins with a large molecule called ​ (b)   to form ​ (c)   .

• Acetyl-CoA
• oxaloacetic acid
• citric acid
• pyruvic acid
• carbon dioxide

Tags

NGSS.HS-LS2-3

The following are steps of cellular respiration except...

• glycolysis

• electron transport chain

• the Krebs cycle

• electrolysis

Tags

NGSS.HS-LS1-7

Which molecule provides the activation energy that starts glycolysis?

• sugar

• water

• carbon dioxide

• ATP

During which phase of cellular respiration is carbon dioxide released?

• electron transport chain

• Krebs cycle

• glycolysis

• digestion

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5