Histology MCQ For NEET Biology with Answers

Histology MCQ Introduction

Histology MCQ: The study of histology allows insight into the structure and function of tissues at the microscopic level. This discipline provides a unique perspective on how cells come together to form different organs throughout the body. The characteristics of different cell types, such as size, shape, and staining properties, can be determined by examining tissue samples under a microscope. They can even explore cellular processes in detail through advanced techniques like immunohistochemistry, histochemistry, and electron microscopy.

NEET Biology MCQ

Q 1. Where are collateral vascular bundles found?

1. Malvaceae
2. Gramineae
3. Cucurbitaceae
4. Leguminosae

Answer- b, Gramineae

Explanation: Bicollateral vascular bundles are found in the Gramineae family, also known as Poaceae. The Gramineae family includes grasses like wheat, rice, corn, and bamboo. Bicollateral vascular bundles have two separate and parallel phloem strands, one located on the inner side of the xylem and another on the outer side. This arrangement is characteristic of the vascular bundles in grasses.

Q 2. In monocotyledons, why is grafting not possible?

1. Because they have scattered vascular bundles
2. Because they lack cambium
3. Because they are herbaceous
4. Because they have parallel bundles

Answer- b, Because they lack cambium

Explanation: This layer is essential for grafting as it allows the two plants to fuse together and exchange nutrients and water through their vascular bundles. Monocotyledons instead have scattered vascular bundles, which make grafting unsuccessful.

Q 3. An example of vascular cambium is ________

1. Lateral meristem
2. Primary meristem
3. secondary meristem
4. Intercalary Meristem

Answer- a, Lateral Meristem

Explanation: The vascular cambium is a lateral meristem found in the stems and roots of woody dicotyledonous plants. Meristems are regions of actively dividing cells that contribute to the growth and development of plants.

Q 4. Which one of the following vitamins can be synthesized by bacteria inside the gut?

1. B
2. D
3. C
4. Both B and C

Answer- b. Vitamin D

Explanation: Bacteria inside the gut can synthesize vitamin D. The fat-soluble vitamin D regulates calcium and phosphate metabolism and bone health. As well as dietary sources such as fatty fish and fortified dairy products, sunlight can also synthesize it in the body.

Q 5. Muscularis layer of the wall of the alimentary canal is formed by:-

1. Smooth muscle arranged into an inner longitudinal and an outer circular layer
2. Smooth muscle is placed into an outer circular and an outer longitudinal layer
3. Skeletal muscle arranged into an inner longitudinal and an outer circular layer
4. Skeletal muscle arranged into an inner circular and an outer longitudinal layer

Answer- d, Smooth muscle arranged into an inner circular and an outer longitudinal layer

Explanation: The muscularis layer of the alimentary canal wall is composed of smooth muscle arranged into an inner circular layer and an outer longitudinal layer. The muscles contract to aid in the propulsion of food, liquid, or air along the digestive tract. This arrangement allows for more efficient movement of materials through the digestive system.

Q 6. Which of the following guards the opening of the hepatopancreatic duct into the duodenum?

1. ileocaecal valve
2. Pyloric sphincter
3. Sphincter of Oddi
4. Semilunar valve

Answer- c, Sphincter of Oddi.

Explanation: This sphincter guards the opening of the hepatopancreatic duct into the duodenum and helps to regulate the flow of bile and pancreatic juices from these organs into the small intestine.

Enroll now to the NEET Hindi Crash Course 2024

Q 7. Which of the following statements should be corrected?

1. Pepsinogen is secreted by Brunner's glands in the submucosa of the stomach.
2. Goblet cells are present in the intestinal lining and secrete mucus.
3. Oxidative cells are present in the gastric mucosa and secrete HCl. Acini are located in the pancreas and secrete carboxyl groups.
4. None of the above

Answer- a, Pepsinogen is secreted by Brunner's glands in the submucosa of the stomach.

Explanation: Rather than being in the stomach, runners' glands are located in the submucosa of the duodenum. These glands produce alkaline mucus that neutralizes stomach acid and protects the duodenum's lining. Unlike the chief cells in the stomach's gastric glands, they do not secrete pepsinogen.

Q 8. The activity of _________heals wounds in plants.

1. Apical meristem
2. Intercalary meristem
3. Lateral meristem
4. secondary meristem

Answer- d, Secondary meristem.

Explanation: Secondary meristems are responsible for healing wounds in plants. They form a callus that eventually fills the damage and helps to recover it. The secondary meristem, or cork cambium, produces layers of protective cells known as the periderm. It provides protection and prevents further damage to the plant.

Q 9. Where do we find the Casparian strips?

1. Endodermis
2. Hypodermis
3. pericycle
4. collenchyma

Answer- a, Endodermis

Explanation: The Casparian strips are found in the endodermis, one of the layers of cells inside a plant's root. The Casparian strip helps to regulate the movement of water and minerals through the plant by preventing their diffusion through cell walls.

Q 10. Brunner's gland is the characteristic feature of:-

1. jejunum of the small intestine
2. ileum
3. duodenum
4. fundic region of the stomach

Answer- c, duodenum

Explanation: Brunner's glands are characteristic features of the duodenum, the first part of the small intestine. These glands are located in the submucosa layer of the duodenum and secrete alkaline mucus. The alkaline mucus helps neutralize the acidic chyme coming from the stomach, creating a more favorable environment for the activity of digestive enzymes in the small intestine.

Q 11. Mucosa- what does not hold?

1. Lines the lumen of the alimentary canal
2. Rugae in stomach
3. Villi in the small intestine
4. The intestine's villi give it a brush border appearance

Answer- d, The intestine's villi give it a brush border appearance

Explanation: Although rugae are found in the stomach, and villi give the intestine a brush border appearance, villi are not found in the small intestine. Villi are only present in the large intestine.

Q 12. Which is not associated with Mucosa?

1. Villi, microvilli, goblet cells
2. Gastric glands, intestinal crypts,
3. Lacteal, villi, and microvilli
4. Lacteal, duodenal glands

Answer- b, Lacteal, duodenal glands.

Explanation: Lacteals are associated with the mucosa of the small intestine, specifically with the villi. Small intestinal villi contain lymphatic vessels called lacteals. They are responsible for the absorption of dietary fats and fat-soluble vitamins.

Q 13. Identify the correct statement concerning the human digestive system

1. The serosa is the innermost layer of the alimentary canal.
2. the ileum is a highly coiled part
3. The vermiform appendix arises from the duodenum.
4. ileum opens into the small intestine.

Answer- b, The Ileum is a highly coiled part.

Explanation: The ileum is a highly coiled and most extended part of the small intestine. It follows the jejunum and is responsible for absorbing nutrients, such as bile salts, vitamin B12, and any remaining nutrients not absorbed in the jejunum.

• Serosa is not the innermost layer of the alimentary canal. The innermost layer is the mucosa, followed by the submucosa, muscularis externa, and the serosa, the outermost layer.
• The vermiform appendix arises from the cecum, the first part of the large intestine, not the duodenum.
• The ileum does not open into the small intestine. Instead, it connects to the large intestine at the cecum.

Q 14. Examples of phloem fibers include

1. Flax
2. Hemp
3. Jute
4. All of the above

Answer- d, All of the above

Q 15. The muscularis layer in the wall of the GIT has

1. Smooth muscle is divided into an inner circular layer and an outer longitudinal layer
2. Smooth muscle is divided into an outer circular layer and an inner longitudinal layer
3. Skeletal muscle is divided into an inner circular layer and an outer longitudinal layer
4. Skeletal muscle is divided into an outer circular layer and an inner longitudinal layer

Answer- a, smooth muscle organized into an inner circular and an outer longitudinal layer.

Explanation: The muscularis layer in the wall of the GIT typically has smooth muscles organized into an inner circular and an outer longitudinal layer. This arrangement allows for the contractions of the GIT wall that are necessary for material moving through it.

Check More Important NEET Biology MCQ