In which one of the following would you expect to find glyoxysomes?

1. Endosperm of wheat

2. Endosperm of castor

3. Palisade cells in leaf

4. Root hairs

Genes present in the cytoplasm of eukaryotic cells are found in

What is common between chloroplasts, chromoplasts and leucoplasts ?

"Omnis-cellula-e-cellula" was given:

(1) Virchow

(2) Hooke

(3) Leeuwenhoek

(4) Brown.

Which of the following is responsible for the mechanical support, protein synthesis and enzyme transport ?

1. Cell membrane

2. Mitochondria

3. Dictyosome

4. Endoplasmic reticulum

Specific proteins responsible for the flow of materials and information into the cell are called

1. membrane receptors

2. carrier proteins

3. integral proteins

4. none of these

Who invented electron microscope ?

1. Jansen

2. Edison

3. Knoll and Ruska

4. Landsteiner

What is a plasmid ?

Cell theory was proposed by

1. a botanist

2. a zoologist

3. a botanist and a zoologist

4. a psychologist.

Which of the following organelles contain DNA?

1. (i) and (ii)
2. (ii) and (iii)
3. (i) only
4. (iv) only.