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 =
90ยบ, AB = 9 m, BC = 12 m, CD = 5 m and AD = 8 m. How much area does it occupy?
