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Respiration, Digestion, and Excretion Questions - All Grades

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Grade 7 Respiration, Digestion, and Excretion
The wave-like movement that moves food through the digestive system is called
  1. chyme.
  2. mechanical digestion.
  3. peristalsis.
  4. chemical digestion.
Grade 9 Respiration, Digestion, and Excretion
The intestines are the organs primarily responsible for
  1. absorption.
  2. digestion.
  3. elimination.
  4. ingestion.
Grade 8 Respiration, Digestion, and Excretion
The process by which an organism gets rid of waste materials is
  1. ingestion.
  2. digestion.
  3. respiration.
  4. excretion.
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Which process occurs in structure M in the diagram?
Digestive System
  1. absorption
  2. digestion
  3. elimination
  4. reproduction
Grade 9 Respiration, Digestion, and Excretion
What does the respiratory system help to do?
  1. digest food
  2. stop bleeding
  3. fight off lung cancer
  4. move oxygen into the body and blood
Grade 9 Respiration, Digestion, and Excretion
Which best describes the function of the body system in the diagram?
Digestive System
  1. pathogen and disease defense
  2. hormone secretion and body regulation
  3. nutrient absorption and waste excretion
  4. oxygen delivery and carbon dioxide removal
Grade 6 Respiration, Digestion, and Excretion
What organs are not a part of the digestive system?
  1. lungs
  2. stomach
  3. small intestine
  4. large intestine
Grade 9 Respiration, Digestion, and Excretion
The pharynx is a structure shared by which two body systems?
  1. integumentary and respiratory
  2. respiratory and circulatory
  3. respiratory and digestive
  4. digestive and excretory
Grade 9 Respiration, Digestion, and Excretion
What does the pancreas do?
  1. It cleans the blood as blood flows through the pancreatic tissues.
  2. It absorbs nutrients needed for growth, maintenance, and repair of cells.
  3. It releases the hormones insulin and glucagon into the bloodstream.
  4. It releases enzymes into the small intestine to aid in the digestion of food.
Grade 9 Respiration, Digestion, and Excretion
Which process occurs in structure D in the diagram?
Digestive System
  1. chemical digestion
  2. nutrient absorption
  3. peristaltic movement
  4. mechanical digestion
Grade 9 Respiration, Digestion, and Excretion
Which bests describes the function of the body system in the diagram?
Respiratory System
  1. pathogen and disease defense
  2. hormone secretion and body regulation
  3. nutrient absorption and waste excretion
  4. oxygen delivery and carbon dioxide removal
Grade 9 Respiration, Digestion, and Excretion
The starch-digesting enzyme found in saliva is
  1. amylase.
  2. lactase.
  3. maltase.
  4. sucrase.
Grade 9 Respiration, Digestion, and Excretion
What is the trachea?
  1. a large tube through which air is transported to the lungs
  2. a main organ in the respiratory system that a human needs to survive
  3. a network of small tubes that feeds into ventricles
  4. the throat
Grade 9 Respiration, Digestion, and Excretion
The stomach
  1. is a large, muscular sac.
  2. is opened and closed by a muscular ring.
  3. is located at the bottom of the esophagus.
  4. digests and absorbs food in the body.
  5. Both a and c are correct.
  6. All of the above are correct.
Grade 9 Respiration, Digestion, and Excretion
What is a function of the small intestines?
  1. They allow you to walk.
  2. They control the muscles.
  3. They serve as veins in the lung. When swallowed, food or drink travels down through the stomach into the intestines.
  4. They take and absorb the nutrients that the body needs from the food and put it in the bloodstream so the body can use it.
Grade 9 Respiration, Digestion, and Excretion
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