Science - Class 9

Tissues

Q63. What does a neuron look like?

 

Q64. Why is epidermis important for the plants?

 

Q65. Name the different components of xylem and draw a living component.

 

Q66. Draw and identify different elements of phloem.

 

Q67. Fill in the blanks.

(a) ______ are forms of complex tissue.

(b) ______ have guard cells.

(c) Cells of cork contain a chemical called ______.

(d) Husk of coconut is made of ______ tissue.

(e) ______ gives flexibility to plants.

(f) ______ and ______ are both conducting tissues.

(g) Xylem transports ______ and ______ from soil.

(h) Phloem transports ______ from ______ to other parts of the plant.

 

Q68. Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.

 

Q70. Differentiate between striated, unstriated and cardiac muscles on the basis of their structure and site/location in the body.

 

Q71. Differentiate between voluntary and involuntary muscles. Give one example of each type.