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Types of Blood Vessels Quiz

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Questions and Answers

Which process involves the conversion of light energy to chemical energy?

Reduction of carbon dioxide to carbohydrates
Conversion of light energy to chemical energy (correct)
Absorption of light energy by chlorophyll
Oxidation of carbon to carbon dioxide

What is the primary function of the mouth in digestion?

Absorb nutrients directly into the bloodstream
Initiate the mechanical and chemical breakdown of food (correct)
Release enzymes to digest proteins
Break down carbohydrates into simple sugars

Which enzyme is the first to mix with food in the digestive tract?

Amylase (correct)
Trypsin
Pepsin
Cellulase

What is the energy currency in living organisms?

ATP (A) Signup and view all the answers

Which type of blood vessels have thin walls with valves inside and carry blood away from the heart to various organs of the body?

Veins (B) Signup and view all the answers

What is the main function of gastric glands in the digestive system?

Produce enzymes and hydrochloric acid for food breakdown (A) Signup and view all the answers

Which of the following is a correct statement regarding the role of mouth in digestion?

Mouth breaks down food into smaller pieces through chewing and produces saliva (C) Signup and view all the answers

What is the main energy currency in living organisms for cellular activities?

ATP (D) Signup and view all the answers

Why do veins have thin walls compared to arteries?

Veins carry blood at a lower pressure than arteries. (B) Signup and view all the answers

What are the correct substrates for the enzyme Pepsin?

Proteins (A) Signup and view all the answers

What is the main function of gastric glands present in the wall of the stomach?

To secrete hydrochloric acid and pepsinogen for protein digestion (A) Signup and view all the answers

What is the energy currency in living organisms and where is it produced?

ATP, produced in mitochondria (C) Signup and view all the answers

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