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Tissues CBSE Class 9

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Question 1/20

Q 1. Smooth muscles are found in the walls of the

Solution

Walls of the urinary bladder, blood vessels and alimentary canal are composed of smooth muscles. 

Q 2. What will happen if red blood cells are placed in distilled water?

Solution

The red blood cells swell when placed in distilled water. Because of osmosis, they will swell and burst. 

Q 3. Which of the following types of tissues consist of cells which are arranged so closely together that there is little intercellular material?

Solution

Epithelial tissue consists of cells which are arranged closely with very less intercellular material.

Q 4. Identify the characteristic of meristematic tissues.

Solution

Small cells, thin cell walls made of cellulose, prominent nuclei and absence of vacuoles are characteristics of meristematic tissues. 

Q 5. Lymph differs from blood in possessing

Solution

Lymph only possesses white blood cells, but blood possesses only red blood cells and white blood cells. 

Q 6. Adipose tissue is helpful during a

Solution

Adipose tissue is helpful during a long starvation period. 

Q 7. Which of the following are the major categories of plant tissues?

Solution

Simple and compound tissues are the major categories of plant tissues. 

Q 8. Neurons communicate with each other through the

Solution

Neurons communicate with each other through the synapse. 

Q 9. Goblet cells of the intestinal epithelium are examples of

Solution

Goblet cells of the intestinal epithelium are example of the columnar epithelium. 

Q 10. Xylem and phloem belong to the group of

Solution

Xylem and phloem belong to the group complex tissues. 

Q 11. The cellular layer covering plant organs is

Solution

The outermost layer or layer of cells covering all plant organs is the epidermis. 

Q 12. The tissues which originate from meristematic tissues are called

Solution

These are the tissues which come from meristematic tissue and are matured. 

Q 13. The cells found in connective tissues are

Solution

Connective tissues consist of mast cells, fat cells and fibroblasts. 

Q 14. Which of the following is not cross-striated?

Solution

Smooth muscles are not cross-striated because myofibrils are not in register with each other. 

Q 15. Collenchyma is characterised by

Solution

Collenchyma is characterised with uneven thickening. 

Q 16. Heart muscles are shared with

Solution

Cardiac muscles share some features with striated muscles. 

Q 17. The protein constituent of muscle fibre is known as

Solution

Myosin is the protein constituent of muscle fibre. 

Q 18. What are the cells of cartilage called?

Solution

Cartilage is made of specialised cells called chondrocytes. 

Q 19. Vessels are absent in

Solution

Vessel elements are mainly found in the xylem and are typically found in flowering plants (angiosperms) and are absent in non-flowering plants (gymnosperms). 

Q 20. Name the tissue where cells are living, thin-walled, isodiametric with intercellular spaces.

Solution

In parenchyma tissue, cells are living, thin-walled and isodiametric with intercellular spaces. 

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