Tag: digestive glands

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Questions Related to digestive glands

Multiple choice biology digestive system of human digestive glands liver pancreas

Meat does not contain much glycogen because 

  1. It is stored only in liver

  2. Animals do not store much glycogen

  3. It is degraded by enzymes immediately after death

  4. Clinical death is not biological death
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Meat does not contains much of glycogen as all the excess glucose present in body is converted to glycogen and is stored in the liver.
Some of the glycogen is stored in muscle but is as less as $1-2\%$. Major portion, i.e., $100-120$gm of glycogen is stored in liver cells and are released and broken down when needed.
Multiple choice biology digestive system of human digestive glands liver pancreas

Bilirubin is the breakdown product of

  1. Haemoglobin

  2. RBC

  3. WBC

  4. Platelets
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The dead RBCs are metabolised in the spleen and liver and the heme is broken down into bilirubin which is a yellow coloured pigment.

So, the correct option is 'Haemoglobin'.

Multiple choice biology digestive system of human digestive glands liver pancreas

Removal of the pancreas impairs the breakdown of 

  1. lipids and carbohydrates only

  2. lipids and proteins only

  3. lipids, proteins and carbohydrates

  4. proteins and carbohydrates only
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pancreas secretes pancreatic juice containing enzymes for all three major classes of nutrients: amylase for carbohydrates, lipases for lipids, and proteases (like trypsin) for proteins.

Multiple choice biology digestive system of human digestive glands liver pancreas

The function of the liver is to

  1. Promote digestion of food

  2. Promote respiration

  3. Store glucose as glucogen

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The liver plays a central role in metabolism, including glycogenesis (storing glucose as glycogen), gluconeogenesis, and glycogenolysis to maintain blood glucose levels.

Multiple choice biology digestive system of human digestive glands liver pancreas

The cells which occupy only 5% of the islets are known as 

  1. Alpha cells

  2. Beta cells

  3. Gamma cells

  4. Both of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The islets of Langerhans are the cells in the pancreas. These cells are responsible for the endocrine functions of the pancreas. There are three type of cells, alpha cells, beta cells and gamma cells. The gamma cells are known delta cells. These cells comprise only 5% of the islets cells. These cells are responsible for the production of somatostatin hormone.

Thus, the correct answer is option C. 

Multiple choice biology digestive system of human digestive glands liver pancreas

Acini cells are

  1. Endocrine

  2. Exocrine

  3. Both endocrine and exocrine

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There are two types of cells in the pancreas, the acinar cells and the islet of Langerhans. The acinar cells are lobed cells. These cells are responsible for the exocrine function of the pancreas. They secrete the pancreatic enzymes and forms the pancreatic juice which is involved in the process of digestion.

Thus, the correct answer is option B. 

Multiple choice biology digestive system of human digestive glands liver pancreas

Pancreas are derived from 

  1. Ectoderm

  2. Endoderm

  3. Mesoderm

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In organogenesis, cells of the three germ layers lead to the formation of specific structures. The ectoderm eventually forms the outer layer of the skin and gives rise to the nervous system and sense organs. Tissues that eventually line the digestive tract and organs like liver, pancreas and lungs are all of endodermal origin. Skeletal tissue, muscle, and the circulatory, excretory, and reproductive systems are derived from mesoderm.

Thus, the correct answer is option B.

Multiple choice biology digestive system of human digestive glands liver pancreas

Which of the following data can be related to pancreas?

  1. It is 3 to 9 cm in breadth

  2. It is 10-23 cm in length

  3. It extends up to spleen in the abdominal cavity

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The pancreas is about 10-23 cm in length, 3-9 cm in breadth and 6 inches long and sits across the back of the abdomen, behind the stomach. It extends laterally and superiorly across the abdomen from the curve of the duodenum to the spleen. It is considered as heterocrine gland.
So, the correct answer is option D.
Multiple choice biology digestive system of human digestive glands liver pancreas

Pancreas has double role of

  1. Storage and digestion

  2. Digestion and absorption

  3. Digestion and endocrine activity

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The pancreas is a heterocrine gland; it functions as an exocrine gland by secreting digestive enzymes into the duodenum and as an endocrine gland by secreting hormones like insulin and glucagon into the blood.

Multiple choice biology digestive system of human digestive glands liver pancreas

$\beta$ cells in the islet of Langerhans of man comprise.

  1. $60\%$ to $90\%$
  2. $40\%$ to $50\%$
  3. Less than $40\%$

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In the human pancreas, beta cells are the most abundant cell type within the islets of Langerhans, typically comprising about 60 to 80 percent of the islet cells.