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

Which of the following is not a modification of endoplasmic reticulum

Ergastoplasm is a modification of

1. RER

2. SER

3. GB

4. None of these

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

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