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Bio-Chem Pre-mid - Grade 9

Total questions: 14

Worksheet time: 1hrs 20mins

Name
Class
Date
1.
PLANT CELL WALL IS MAINLY COMPOSED OF
a)
CELLULOSE
b)
HEMI-CELLULOSE
c)
PROTEIN
d)
LIPIDS
2.

Protein Factory of cell

a)

Nucleus

b)

Ribosome

c)

Mitochondria

d)

ER

3.

Powerhouse of cell

a)

Golgi Bodies

b)

Ribosome

c)

Vacoule

d)

Mitochondria

4.
Which of the following is not one of the four basic types of tissue?
a)
epithelial
b)
connective
c)
muscle
d)
avascular
5.
Identify:
a)
Smooth Muscle
b)
Columnar
c)
Transitional
d)
Pseudostratified
6.

Group of dividing tissues are called

a)

Permanent tissues

b)

meristematic tissues

c)

Vascular tissues

7.

A sample contains two substances and has uniform properties. The sample is ________?

a)

A compound.

b)

A heterogeneous mixture.

c)

An element.

d)

A homogeneous mixture.

8.

Brass is an example of?

a)

Homogeneous compound.

b)

Homogeneous mixture.

c)

Heterogeneous mixture.

d)

Heterogeneous compound.

9.

A mixture of sulphur and carbon disulphide is

a)

(a) heterogeneous and shows Tyndall effect

b)

(b) homogeneous and shows Tyndall effect

c)

(c) heterogeneous and does not show Tyndall effect

d)

(d) homogeneous and does not show Tyndall effect

10.

What is the name of the metal which exists in liquid state at room temperature?

a)

(a) Sodium

b)

(b) Potassium

c)

(c) Mercury

d)

(d) Bromine

11.

Write a note on Golgi apparatus and the functions it performs. (Draw diagram and label the parts separately in a paper & take a photo and send by whatsapp)

4 lines
12.

Name the technique to separate

(i) butter from curd,

(ii) salt from sea-water,

(iii) camphor from salt.

4 lines
13.

What is Lysosome? Mention its functions

4 lines
14.

Explain the following giving examples.

(a) Saturated solution

(b) Pure substance

(c) Colloid

(d) suspension

4 lines