Biology

Animal Tissue and Anatomy

1,715 Questions

Test your knowledge of animal tissues and anatomical structures with these practice questions. The set covers human organs, reproductive systems, and sensory receptors. These fundamental biology topics frequently appear in medical and competitive examinations.

Sensory receptorsReproductive organsBody structure frameworkEar drum pressureExcretory system

Animal Tissue and Anatomy Questions

Multiple choice biology digestive system of human digestive glands liver pancreas

In human beings, sphincter of oddi is situated in 

  1. Common bile duct

  2. Ampulla of vater

  3. Main pancreatic duct

  4. Common hepatic duct
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sphincter of Oddi, abbreviated as SO, is a muscular valve that controls the flow of digestive juices through the ampulla of Vater into the second part of the duodenum. The sphincter of Oddi is relaxed by the hormone cholecystokinin via vasoactive intestinal peptide. 

So, the correct option is 'Ampulla of Vater'.

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

Where in the body is the pancreas located?

  1. It is located behind the stomach.

  2. It is located behind the liver.

  3. It is located in front of stomach.

  4. It is located in front of liver.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The pancreas is an organ found in the abdomen. It is located behind the stomach. The head of the pancreas is on the right side of the abdomen. It plays important role in converting the food into fuel. It helps in digestion. It also produces hormone insulin which regulates blood sugar.

Thus, the correct answer is 'It is located behind the stomach.'

Multiple choice botany plant tissues permanent tissues and their types simple permanent tissues tissues: plant tissues

Which of the following statements is true?

  1. The collenchyma occurs in layers below the epidermis in monocotyledonous plants.

  2. Sclerenchyma cells are usually dead and without protoplasts.

  3. Xylem parenchyama cells are living and thin walled and their cells walls are made up for lignin.

  4. The companion cells are specialised scierenchy matous cells.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Sclerenchyma consists of long, narrow cells with thick and lignified cell walls having few pits. It is dead and without protoplasts. On the basis of structure, origin and development, sclerenchyma may be either fibres or sclereids. The fibres are thick-walled, elongated and pointed cells. The sclereids are spherical, oval or cylindrical, highly thickened dead cells with very narrow lumen. These are found in the fruit walls of nuts; pulp of fruits like guava, pear and sapota; seed coats of legumes and leaves of tea. Sclerenchyma provides mechanical support to organs.
Thus, the correct answer is 'Sclerenchyma cells are usually dead and without protoplasts.'
Multiple choice bio-chemistry digestion digestion in small intestine digestive glands and their secretions alimentary canal

Lamina propria has nodules of lymphoid tissue which are aggregated to form Peyer's patches in.

  1. Submucosa of stomach

  2. Submucosa of intestine

  3. Submucosa of duodenum

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

Peyer's patches are aggregated lymphoid nodules found specifically in the submucosa of the ileum, which is part of the small intestine.

Multiple choice bio-chemistry digestion digestion in small intestine digestive glands and their secretions alimentary canal

Which of the following guards the opening of hepatopancreatic duct into the duodenum

  1. Sphincter of Oddi

  2. Semilunar valve

  3. Ileocaecal valve

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

The hepatopancreatic duct (ampulla of Vater) enters the duodenum and its opening is controlled by the sphincter of Oddi, which regulates the flow of bile and pancreatic juice.

Multiple choice biology digestion and absorption digestion in small intestine digestive glands and their secretions alimentary canal

In rabbit, the digestion of cellulose takes place in

  1. Colon

  2. Ileum

  3. Caecum

  4. Rectum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In herbivores like rabbit, the symbiotic bacteria and protozoans present in the caecum, help in digestion of cellulose into glucose. So, the digestion of cellulose takes place in caecum by the process of decomposition. This decomposition process is very slow. So, very less amount of cellulose is digested at a time in caecum.

Multiple choice biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

Which begins at the buccal cavity and ends at the anus. The canal can be divided into compartments

  1. Six

  2. Three

  3. Four

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

The digestive system consists of the alimentary canal or digestive tract and two accessory glands, the liver and the pancreas. The digestive tract can in turn be divided into oral cavity, pharynx, stomach, small intestine, large intestine and anus. 

Therefore, the correct answer is option A.

Multiple choice biology digestion and absorption minerals and vitamins nutrition and diet role of various nutrients

In which of the following organisms, extracellular as well as intracellular digestion occurs?

  1. Paramecium

  2. Planaria

  3. Earthworm

  4. All the given options
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In Planaria, digestion involves both the modes, ie, extracellular as well as intracellular. Fats are normally digested extracellularly, while other food components are digested intracellularly.
The intracellular digestion is done by amoeboid cells lining the intestine. Digested food diffuses to the surrounding mesenchyme. 

Thus the correct answer is option B.

Multiple choice biology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

Which part of thyroid cartilage in larynx is closed?

  1. Dorsal

  2. Ventral

  3. Anterior

  4. Posterior
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Larynx lies ventral to the thyroid cartilage. The thyroid cartilage is the largest of the laryngeal cartilages. The thyroid cartilage forms the bulk of the front wall of the larynx. It protects the vocal cords, which are located directly behind it.

Multiple choice zoology control and coordination in living organisms control of blood glucose endocrine system and hormone hormones in human reproduction testes and ovary parts of the brain kidney

Third ventricle is found in 

  1. Heart of rabbit

  2. Brain of rabbit

  3. Heart of frog

  4. Kidney of frog
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The third ventricle (ventriculus tertius) is one of four connected fluid-filled cavities comprising the ventricular system within the rabbit's brain. The third ventricle is a narrow vertical cleft between the 2 lateral ventricles.

Multiple choice botany adaptations to different ecosystems lichen lichens lichens ( the nature's pioneers )

In lichens, medulla has

  1. Endodermis

  2. Hadrome

  3. Hypodermis

  4. Piliferous layer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mosses are flowerless plants that grows as dense green tufts or mats in damp and shady locations. Lichens on the other hand though, they appear similar to mosses, are not related to these are are a composite organism of algae, cyanobacteria and living in a symbiotic relationship in a fungus. The medulla which is found below the cortex in lichens and is made up of loosely woven layer of fungal filaments. Hadrome refers  to collection of hydroids or vascular tissue that occur in some bryophytes or mosses and help in transporting water and minerals drawn from the soil.

Therefore, the correct answer is option B.