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?

<p>ATP (A)</p> 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?

<p>Veins (B)</p> Signup and view all the answers

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

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

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

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

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

<p>ATP (D)</p> Signup and view all the answers

Why do veins have thin walls compared to arteries?

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

What are the correct substrates for the enzyme Pepsin?

<p>Proteins (A)</p> Signup and view all the answers

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

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

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

<p>ATP, produced in mitochondria (C)</p> Signup and view all the answers

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