Monthly Student Online Competition

Digestive System and Nutrition MCQs with Answers

Digestive System and Nutrition MCQs

Welcome to the Digestive System and Nutrition MCQs with Answers. In this post, we are sharing Digestive System and Nutrition Multiple Choice Questions and Answers in Everyday Science section for various competitive exams in Pakistan. Each question offers a chance to enhance your knowledge regarding Digestive System and Nutrition online MCQs Test.

Which organ is primarily responsible for the absorption of nutrients?
a) Stomach
b) Small intestine
c) Large intestine
d) Liver

Answer
b) Small intestine

The process of breaking down food into smaller molecules is known as:
a) Digestion
b) Absorption
c) Excretion
d) Respiration

Answer
a) Digestion

What is the function of the stomach’s gastric acid?
a) To digest proteins
b) To neutralize food
c) To absorb nutrients
d) To kill bacteria

Answer
d) To kill bacteria

Which enzyme in the mouth begins the digestion of carbohydrates?
a) Pepsin
b) Amylase
c) Lipase
d) Trypsin

Answer
b) Amylase

Which structure prevents food from entering the trachea during swallowing?
a) Epiglottis
b) Uvula
c) Esophagus
d) Pharynx

Answer
a) Epiglottis

What is the primary role of the large intestine?
a) Digestion of proteins
b) Absorption of water and electrolytes
c) Absorption of nutrients
d) Digestion of carbohydrates

Answer
b) Absorption of water and electrolytes

Which part of the digestive system is responsible for bile production?
a) Gallbladder
b) Pancreas
c) Liver
d) Small intestine

Answer
c) Liver

What is the function of the pancreas in digestion?
a) Produce bile
b) Store food
c) Secrete digestive enzymes
d) Absorb nutrients

Answer
c) Secrete digestive enzymes

Which enzyme is responsible for protein digestion in the stomach?
a) Amylase
b) Lipase
c) Pepsin
d) Lactase

Answer
c) Pepsin

What is the function of the villi in the small intestine?
a) Produce digestive enzymes
b) Increase surface area for absorption
c) Store bile
d) Regulate pH levels

Answer
b) Increase surface area for absorption

The process by which nutrients are taken up by the bloodstream is called:
a) Digestion
b) Absorption
c) Excretion
d) Respiration

Answer
b) Absorption

Which digestive organ is involved in both digestion and absorption?
a) Stomach
b) Small intestine
c) Large intestine
d) Liver

Answer
b) Small intestine

Which of the following is a function of the liver?
a) Production of insulin
b) Storage of bile
c) Production of bile
d) Production of digestive enzymes

Answer
c) Production of bile

The breakdown of fats into fatty acids and glycerol is facilitated by:
a) Amylase
b) Pepsin
c) Lipase
d) Lactase

Answer
c) Lipase

Which part of the digestive system is commonly referred to as the “food pipe”?
a) Trachea
b) Esophagus
c) Stomach
d) Duodenum

Answer
b) Esophagus

What is the name of the enzyme that breaks down lactose in dairy products?
a) Amylase
b) Lactase
c) Pepsin
d) Lipase

Answer
b) Lactase

Which of the following is not a part of the digestive system?
a) Pancreas
b) Gallbladder
c) Kidney
d) Liver

Answer
c) Kidney

What is the function of the esophagus?
a) Absorb nutrients
b) Digest food
c) Transport food to the stomach
d) Produce digestive enzymes

Answer
c) Transport food to the stomach

Which section of the large intestine is closest to the small intestine?
a) Rectum
b) Cecum
c) Colon
d) Appendix

Answer
b) Cecum

The primary function of bile is to:
a) Digest proteins
b) Emulsify fats
c) Neutralize stomach acid
d) Absorb nutrients

Answer
b) Emulsify fats

Which hormone stimulates the release of bile from the gallbladder?
a) Insulin
b) Gastrin
c) Cholecystokinin
d) Secretin

Answer
c) Cholecystokinin

What is the primary function of the stomach?
a) Absorb nutrients
b) Digest proteins
c) Produce bile
d) Store food

Answer
b) Digest proteins

Which type of digestion occurs in the mouth?
a) Mechanical digestion only
b) Chemical digestion only
c) Both mechanical and chemical digestion
d) Absorption

Answer
c) Both mechanical and chemical digestion

The digestive enzyme amylase is found in which digestive fluid?
a) Gastric juice
b) Saliva
c) Bile
d) Pancreatic juice

Answer
b) Saliva

Which part of the digestive system absorbs most of the water from undigested food?
a) Small intestine
b) Large intestine
c) Stomach
d) Pancreas

Answer
b) Large intestine

What is the role of the gallbladder?
a) Produce digestive enzymes
b) Store and concentrate bile
c) Absorb nutrients
d) Digest carbohydrates

Answer
b) Store and concentrate bile

What are the finger-like projections in the small intestine called?
a) Cilia
b) Villi
c) Microvilli
d) Papillae

Answer
b) Villi

Which substance neutralizes stomach acid in the small intestine?
a) Bile
b) Pepsin
c) Gastrin
d) Sodium bicarbonate

Answer
d) Sodium bicarbonate

What is the primary function of hydrochloric acid in the stomach?
a) Neutralize stomach acid
b) Break down carbohydrates
c) Kill pathogens
d) Emulsify fats

Answer
c) Kill pathogens

Which part of the digestive system is responsible for the production of insulin?
a) Liver
b) Pancreas
c) Gallbladder
d) Small intestine

Answer
b) Pancreas

What is the term for the rhythmic contraction of the digestive tract that moves food along?
a) Peristalsis
b) Segmentation
c) Digestion
d) Absorption

Answer
a) Peristalsis

Which enzyme is responsible for the digestion of proteins in the stomach?
a) Amylase
b) Pepsin
c) Lipase
d) Lactase

Answer
b) Pepsin

What is the primary function of the duodenum?
a) Absorb nutrients
b) Digest proteins
c) Neutralize stomach acid
d) Produce bile

Answer
c) Neutralize stomach acid

The process of breaking down food into simpler molecules is called:
a) Digestion
b) Metabolism
c) Absorption
d) Excretion

Answer
a) Digestion

Which type of nutrient is primarily absorbed in the small intestine?
a) Carbohydrates
b) Proteins
c) Fats
d) All of the above

Answer
d) All of the above

What is the name of the flap of tissue that covers the trachea during swallowing?
a) Uvula
b) Epiglottis
c) Esophagus
d) Larynx

Answer
b) Epiglottis

Which organ stores bile produced by the liver?
a) Pancreas
b) Gallbladder
c) Small intestine
d) Large intestine

Answer
b) Gallbladder

The enzyme pepsin is most active in which part of the digestive system?
a) Mouth
b) Small intestine
c) Stomach
d) Large intestine

Answer
c) Stomach

What is the primary function of the rectum?
a) Absorb nutrients
b) Store and expel feces
c) Produce digestive enzymes
d) Neutralize stomach acid

Answer
b) Store and expel feces

Which digestive enzyme is secreted by the pancreas to aid in carbohydrate digestion?
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin

Answer
a) Amylase

The primary role of dietary fiber is to:
a) Provide energy
b) Facilitate digestion and promote regular bowel movements
c) Build muscle
d) Absorb nutrients

Answer
b) Facilitate digestion and promote regular bowel movements

Which organ is primarily involved in the production of digestive enzymes and hormones?
a) Liver
b) Gallbladder
c) Pancreas
d) Stomach

Answer
c) Pancreas

Which substance in the digestive system helps to break down proteins into peptides?
a) Amylase
b) Pepsin
c) Lipase
d) Lactase

Answer
b) Pepsin

If you are interested to enhance your knowledge regarding PhysicsChemistryComputer, and Biology please click on the link of each category, you will be redirected to dedicated website for each category.

Was this article helpful?
YesNo
See Also  First Aid and Emergency Procedures MCQs with Answers
Facebook
Twitter
LinkedIn
WhatsApp
Pinterest
Telegram
Picture of YFP

YFP

YFP empower the youth with the ability to nurture their communication and leadership skills at a common national platform resulting in greater self-confidence and personal growth.

Leave a Reply

Your email address will not be published. Required fields are marked *