Which of the following is true about mitochondria except

1.	easily visualised under microscope without staining
2.	It’s number in the cell depends on the physiological activity of the cell
3.	It is highly variable in their shape and size
4.	Double membranous structure

Endoplasmic reticulumn bearing ribosomes on their surface is called

Which of the following is true about SER (smooth endoplasmic reticulum), except

(1) Ribosomes are absent

(2)Actively involved in protein synthesis

(3)Steroidal hormone synthesis site

(4)Both A and C

Plastids are present in

1. Plants

2. Euglenoides

3. Both A and B

4. all protists

Based on the type of pigments plastids can be classified into how many classes

1. 3

2. 4

3. 2

4. 1

All the three types of plastids have evolved from

(1)Pro-plastid

(2)chloroplast

(3)chromoplast

(4)leucoplast

The type of leucoplast which stores oils and fats is

1. amyloplast

2. aleuroplast

3. elaioplast

4. chromoplast

The incorrect match is

1. Elaioplast- lipids

2. amyloplast-starch

3. aleuroplast-carbohydrates

4. chromoplast-carotenoids

Carotene and xanthophylls are present in

1. Chloroplast

2. Chromoplast

3. leucoplast

4. Both A and B

Which of the following is true about chloroplast

1. one in chlamydomonas

2. 20-40 in leaf mesophyll cell

3. present in different shapes

4. All of these