Understanding Digestion and Photosynthesis

What is the primary function of enzymes in the human digestive system?

• To provide energy for muscle contractions during digestion.

• To catalyze the breakdown of food into smaller molecules for nutrient absorption.

• To transport nutrients through the bloodstream after digestion.

• To protect the stomach lining from acid damage.

Name two enzymes involved in the digestion of proteins.

• Cellulase

• Amylase

• Lipase

• Pepsin, Trypsin

What are the main products of the light reactions in photosynthesis?

• ATP, glucose, and carbon dioxide

• Glucose, water, and carbon dioxide

• ATP, NADPH, and oxygen

• NADH, glucose, and water

Describe the role of chlorophyll in photosynthesis.

• Chlorophyll releases oxygen during photosynthesis.

• Chlorophyll is responsible for water absorption.

• Chlorophyll converts carbon dioxide into glucose.

• Chlorophyll absorbs light energy for photosynthesis.

What is the overall equation for photosynthesis?

• C6H12O6 + 6O2 + light energy -> 6CO2 + 6H2O

• 6CO2 + 6H2O -> C6H12O6 + 6O2

• 6O2 + light energy -> 6CO2 + C6H12O6

• 6CO2 + 6H2O + light energy -> C6H12O6 + 6O2

Which part of the human digestive system is responsible for nutrient absorption?

• Small intestine

• Large intestine

• Stomach

• Esophagus

What is marasmus and how does it differ from kwashiorkor?

• Marasmus primarily affects adults, while kwashiorkor affects infants.

• Marasmus is energy deficiency malnutrition, while kwashiorkor is protein deficiency malnutrition.

• Marasmus is a vitamin deficiency malnutrition.

• Kwashiorkor is caused by excessive calorie intake.

Explain the function of the stomach in the human digestive process.

• The stomach absorbs nutrients directly into the bloodstream.

• The stomach stores and digests food, mixing it with gastric juices to form chyme.

• The stomach is primarily responsible for breaking down carbohydrates.

• The stomach produces bile to aid in fat digestion.

What occurs during the dark reactions of photosynthesis?

• Light energy is captured and stored as glucose.

• Oxygen is produced from glucose during the dark reactions.

• Carbon dioxide is released as a byproduct of the dark reactions.

• The Calvin cycle converts carbon dioxide into glucose using ATP and NADPH.

Identify the organ where bile is produced and its role in digestion.

• Gallbladder

• Stomach

• Liver

• Pancreas