Free Digestion MCQs with Answers

• A. Gastrin
• B. Secretin
• C. HCl
• D. Enterokinase

Explanation: When acidic chyme touches the lining of duodenum wall it stimulates the secretion of hormone secretin.

• A. Larynx
• B. Glottis
• C. Pharynx
• D. Bronchi

Explanation: In the glottis (upper end of larynx) the mucous membrane is stretched across into two than edged fibrous Bands called vocal cords, which…

• A. Contracts and relax
• B. Contracts and goes downward
• C. Relax and rises
• D. Relax and goes downward

Explanation: During inhalation, the diaphragm, which is a dome-shaped muscle that separates the chest cavity from the abdominal cavity, contracts and…

• A. The superior vena cava
• B. Aorta
• C. The inferior vena cava
• D. The four pulmonary veins

Explanation: Yes, the left atrium of the human heart receives four pulmonary veins. The four pulmonary veins are responsible for carrying oxygenated…

• A. Atria ventricular node
• B. Sino-atrial node
• C. Atria ventricular bundles of fibers
• D. Bundle of His

Explanation: The SA node is the heart's natural pacemaker. The SA node consists of a cluster of cells that are situated in the upper part of the walI…

• A. A metabolic disorder
• B. A degenerative disorder
• C. An infectious disorder
• D. A genetic disorder

Explanation: Arteriosclerosis is a degenerative disorder which is the result of continuous process based on degenerative cellular changes affecting…

• A. Liver
• B. Villi
• C. Pancrease
• D. Spleen

Explanation: Therefore, the correct answer is B) Villi, as lacteals are central lymph vessels that are found within the villi of the small intestine.

• A. Inspiration is an active process
• B. Expiration is an active process
• C. Inspiration is a passive process
• D. Both expiration and inspiration are passive processes

Explanation: Inspiration occurs via active contraction of muscles so, is an active process.

• A. Carry blood away from the heart to different organs.
• B. Break up into capillaries which reunite to form a vein.
• C. Carry blood from one visceral organ to another visceral organ.
• D. Supply oxygenated blood to different organs.

Explanation: Arteries are best defined as the vessels which carry blood away from the heart.

• A. Stomach and brain
• B. Ventricle and atrium
• C. Groin and neck
• D. Thyroid gland and adrenal gland

Explanation: Lymph nodes are small, bean-shaped organs that filter lymph fluid, which is a clear fluid that carries waste products and immune cells…

• A. Starch, Proteins, and Fats
• B. Vitamins, Carbohydrates, and Polypeptides
• C. Protein, Cellulose, and Fats
• D. Protein, Starch, and Cellulose

Explanation: Protein, starch, and cellulose enter the stomach undigested and start digestion there.

• A. Sublingual - below the tongue
• B. Sub Mandibular - behind jaws
• C. Parotid - in front of the ear
• D. Lacrimal - above the lateral end of the eye

Explanation: Humans have three paired major salivary glands (parotid, submandibular, and sublingual) While the lacrimal gland is located within the…

• A. Sublingual
• B. Submaxillary
• C. Parotid
• D. Pancreas

Explanation: The gland present at the front of the ear is Parotid gland.

• A. Protein into amino acid
• B. Starch into maltose
• C. Glycogen into glucose
• D. Fats into vitamins

Explanation: Saliva contains an enzyme called salivary amylase, also known as ptyalin, which helps initiate the breakdown of starch (a complex…

• A. Symbiotic Bacteria
• B. Obligate Bacteria
• C. Parasitic Bacteria
• D. Facultative Bacteria

Explanation: [A] Symbiotic bacteria are bacteria that live in a symbiotic relationship with other organisms.

• A. Some of the idiomatic or colloquial expressions found in the play is explained excellently.
• B. Some of the idiomatic or colloquial expressions found in the play are explained excellent.
• C. Some of the idiomatic or colloquial expressions found in the play are explained excellently.
• D. Some of the idiomatic or colloquial expression found in the play ahas explained excellently.

Explanation: Some of the idiomatic or colloquial expressions found in the play are explained excellently.This option is correct as it maintains…

• A. Outer anal sphincter
• B. Both outer and inner anal sphiniters
• C. Inner and sphiniter
• D. Connot be inhibited

Explanation: The majority of protein digestion occurs in the duodenum, the first segment of the small intestine.

• A. Gastrin
• B. Secretin
• C. Insulin
• D. Lipids

Explanation: Hepatic and Pancreatic secretions are also stimulated by a hormone called secretin, which is produced by the intestinal mucosa on the…

• A. 7.8
• B. 6
• C. 1.8
• D. 1.4
• E. 1.2

Explanation: Explanation for this question will be added soon.

• A. Dysentery
• B. Piles
• C. Food poisoning
• D. Peptic ulcer
• E. Dyspepsia

Explanation: Explanation for this question will be added soon.