IX: TEST 5 CELL,TISSUE,POLYNOMIAL, HERON’S

1.       [1] Which tissue makes up the husk of coconut?

2.       [1] Name the meristematic tissue, which increases the thickness of plants.

3.       [1] Name types of simple tissues.

4.       [1] Who presented the cell theory for the first time? What was it?

5.       [4] How many types of elements together makeup the xylem &  phloem tissue? Name them.

6.       [3] Differentiate between parenchyma, collenchyma and sclerenchyma, on the basis of their cell wall.

7.       [3] What is the utility of tissues in multi-cellular organisms?

8.       [3] What are the types of plastids? Write their names and fuctions.

9.       [3] Write any four differences between the plasma membrane and cell wall.

10.    [3] If  (x³ + ax² + bx + 6 )     has x – 2 as a factor BUT it leaves a remainder 3 when  divided by  ( x – 3 ), find the values of  a and b                       

11.    [3] Find the product:   (x – 2y + 3) (x²+ 4y² + 2xy – 3x + 6y + 9)                      

12.    [3] If x = 2y +  6 , find the value of (x³ – 8y³ -36xy -216)  

13.    [3]A floral design on a floor is made up of 16 tiles which are triangular, the sides of the triangle being 9 cm, 28 cm and 35 cm (see figure). Find the cost of polishing the tiles at the rate of Rs 5 per cm2.

14.    [3] A field is in the shape of a trapezium whose parallel sides are 25 m and 10 m. The non-parallel sides are 14 m and 13 m. Find the area of the field.

15.    [3] Sanya has a piece of land which is in the shape of a rhombus . She wants her one daughter and one son to work on the land and produce different crops. She divided the land in two equal parts. If the perimeter of the land is 400 m and one of the diagonals is 160 m, how much area each of them will get for their crops?

16.    [2] A park, in the shape of a quadrilateral ABCD, has  C = 90º, AB = 9 m, BC = 12 m, CD = 5 m and AD = 8 m. How much area does it occupy?