26 Questions
What is the primary function of the mechanical digestion process in the mouth?
Cutting, tearing, and grinding of food
What is the result of chemical digestion of proteins in the digestive system?
Peptides and amino acids
What type of epithelial tissue lines the oesophagus?
Stratified squamous epithelial tissue
What is the primary function of the stomach in the digestive system?
Churning of food to mix with digestive enzymes
What is the role of bile in the digestive system?
Emulsification of fats into droplets
What is the function of the pancreas in the digestive system?
Production of digestive enzymes to break down nutrients
What is the main function of the salivary amylase in the saliva?
Breaks down starch into disaccharides
Which type of muscle is responsible for the movement of food through the oesophagus?
Smooth muscle
What is the primary function of the liver in the excretory system?
To prepare materials for excretion
What is the main role of the rugae in the stomach?
Folding of the stomach wall to increase surface area
What is the process of removing nitrogen from amino acids and nitrogen bases called?
Deamination
What is the name of the enzyme that breaks down proteins into peptides in the stomach?
Pepsin
What is the role of the skin in the excretory system?
To secrete oil and water, and excrete some drugs and waste
What is the purpose of the pyloric sphincter in the stomach?
To regulate the transfer of chyme into the duodenum
What is the functional unit of the kidneys?
Nephron
Which of the following is NOT a function of the oesophagus?
Absorption of nutrients into the bloodstream
What is the process of removing waste substances from the blood in the kidneys?
Filtration
What is the primary function of the stomach in the digestive process?
Storage and breakdown of food through mechanical and chemical digestion
What is the role of podocytes in the glomerular capsule?
To wrap around capillaries of the glomerulus
What is the term for the fluid that is formed during filtration in the kidneys?
Filtrate
What is the role of bile in the digestive process?
Physically breaks down fats into smaller units
What is the primary function of the mucosa in the stomach?
Protection of the stomach from acidic chyme and bacteria
What is the process of returning useful substances to the blood from the filtrate?
Reabsorption
Which of the following types of teeth is responsible for tearing food?
Canines
What is the hormone that regulates the permeability of the collecting duct?
ADH
What is the term for the movement of substances from the blood into the filtrate?
Secretion
This quiz covers the basics of the human digestive system, including its functions, mechanical digestion and the roles of organs like the pancreas, gallbladder, and liver.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
