Human Nutrition
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Diet and balanced nutrition
SubtopicDiet and balanced nutrition under Human Nutrition for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
What is the primary role of dietary fiber (roughage) in the human alimentary canal?
A.To provide a concentrated source of energy for the brain.
B.To act as a catalyst for the digestion of proteins.
C.To provide bulk for the feces and help move food through the intestines via peristalsis.
D.To be absorbed into the blood to strengthen bone structure.
- 2.
A student lacks fresh fruit and vegetables in their diet for several months and begins to experience bleeding gums and slow wound healing. Which deficiency disease are they likely suffering from?
A.Anemia
B.Rickets
C.Marasmus
D.Scurvy
- 3.
Which nutrient is the primary structural component required for the growth and repair of body tissues?
A.Proteins
B.Carbohydrates
C.Vitamin C
D.Lipids
Download the worksheet for Human Nutrition - Diet and balanced nutrition to practice offline. It includes additional chapter-level practice questions.
Alimentary canal
SubtopicAlimentary canal under Human Nutrition for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Based on the simplified pathway of the alimentary canal below, in which labeled section does the chemical digestion of protein begin?
A.Label A
B.Label B
C.Label C
D.Label D
- 2.
What is the main function of the stomach in the human digestive system?
A.Absorption of glucose into the bloodstream
B.Mechanical and chemical digestion of proteins
C.Production of bile for fat emulsification
D.Neutralization of stomach acid using bicarbonate
- 3.
Which part of the alimentary canal is the primary site for the reabsorption of water from undigested food?
A.Large Intestine
B.Stomach
C.Esophagus
D.Duodenum
Download the worksheet for Human Nutrition - Alimentary canal to practice offline. It includes additional chapter-level practice questions.
Mechanical and chemical digestion
SubtopicMechanical and chemical digestion under Human Nutrition for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Which type of human tooth has a pointed shape and is primarily used for tearing and ripping food?
A.Incisors
B.Molars
C.Premolars
D.Canines
- 2.
In which organ is hydrochloric acid produced to provide the optimum pH for protein-digesting enzymes?
A.Pancreas
B.Stomach
C.Small Intestine
D.Liver
- 3.
Which enzyme is produced in the salivary glands and begins the chemical digestion of starch in the mouth?
A.Protease
B.Lipase
C.Amylase
D.Maltase
Download the worksheet for Human Nutrition - Mechanical and chemical digestion to practice offline. It includes additional chapter-level practice questions.
Absorption and assimilation
SubtopicAbsorption and assimilation under Human Nutrition for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Which products of digestion are primarily absorbed into the lacteals found within the villi?
A.Glucose and minerals
B.Amino acids and vitamins
C.Fatty acids and glycerol
D.Water and fiber
- 2.
Which of the following best describes the process of assimilation?
A.The breakdown of large insoluble food molecules into small soluble ones
B.The movement of digested food molecules into the cells of the body where they are used
C.The passing out of food that has not been digested or absorbed
D.The movement of small food molecules through the wall of the intestine into the blood
- 3.
Which structural feature of the small intestine is specifically designed to increase the surface area for efficient absorption?
A.Villi
B.Circular muscles
C.Mucus glands
D.Sphincters
Download the worksheet for Human Nutrition - Absorption and assimilation to practice offline. It includes additional chapter-level practice questions.