Unit 2 LC1 Summative Review

Front

What is the main difference between aerobic and anaerobic respiration?

Back

Aerobic respiration requires oxygen, while anaerobic respiration occurs in the absence of oxygen.

Front

Which of the following is a product of aerobic respiration? Lactic acid, Ethanol, Carbon dioxide, Oxygen

Back

Carbon dioxide

Front

What is the primary role of ATP in cells?

Back

To store and transfer energy

Front

What is the function of chloroplasts in plant cells?

Back

To convert light energy into chemical energy

Front

Which of the following is an input of cellular respiration? Glucose, Oxygen, Carbon dioxide, Water

Back

Glucose

Front

What is the main purpose of photosynthesis?

Back

To convert carbon dioxide into glucose

Answer explanation

The main purpose of photosynthesis is to convert carbon dioxide into glucose, which plants use as energy. While oxygen is produced as a byproduct, the primary function is the synthesis of glucose.

Front

Byproduct of anaerobic respiration in muscle cells?

Back

Lactic acid

Answer explanation

During anaerobic respiration in muscle cells, glucose is partially broken down without oxygen, resulting in lactic acid as a byproduct. Ethanol is produced in yeast, while carbon dioxide and water are not specific byproducts of muscle anaerobic respiration.

Front

What is the chemical equation for cellular respiration?

Back

Answer explanation

The correct equation for cellular respiration is C6H12O6 + 6O2 → 6CO2 + 6H2O + energy. This process converts glucose and oxygen into carbon dioxide, water, and energy, highlighting the role of glucose as a fuel.

Front

Which molecule is the final electron acceptor in the electron transport chain of aerobic respiration? Options: NADH, FADH_2, Oxygen, Water

Back

Oxygen

Answer explanation

Oxygen is the final electron acceptor in the electron transport chain of aerobic respiration. It combines with electrons and protons to form water, enabling the process to continue and produce ATP efficiently.

Front

What is the main pigment involved in photosynthesis?

Back

Chlorophyll

Answer explanation

The main pigment involved in photosynthesis is chlorophyll, which captures light energy to convert carbon dioxide and water into glucose and oxygen. Other pigments like carotene and xanthophyll assist but are not primary.