Match the following column I and II for organismic respiration.

Column I	Column II
A. Respiration in bacteria	1. Mitochondria
B. Respiration in cyanobacteria	2. Cytoplasmic membrane
C. Respiration in eukaryotic cell	3. Mesosomes

•  A-2, B-3, C-1

• A-3, B-2, C-1

• A-1, B-3, C-2

• A-3, B-1, C-2

Ribosomes are particles about 200 Å units in diameter consisting of protein and RNA. The percentage of protein and RNA is respectively

• 80% and 20%

• 60% and 40%

• 50% and 50%

• 40% and 60%

Which of the following sequences represent a possible pathway in the production of a secretory protein?

• Rough ER → Secretory vesicle → Ribosome → Golgi apparatus

• Ribosome → Rough ER → Golgi apparatus → Secretory vesicle

• Secretory vesicle → Golgi apparatus → Ribosomes → Rough ER

• Rough ER → Ribosomes → Secretory vesicles → Golgi appratus

The phrase "Omnis cellula e cellula' was given by

• Virchow

• Pasteur

• Schleiden

• Brown

Membrane is absent in

• Nucleus

• Nucleolus

• Vacuole

• Lysosome

256.

In prokaryotes, chromatophores are

• Specialised granules responsible for the colouration of cells

• Structures responsible for organising the shape of the organism

• Inclusion bodies lying free inside the cells for carrying out various metabolic activities

• Internal membrane systems that may become extensive and complex in photosynthetic bacteria

Endoplasmic reticulum is in continuation with

• Golgi body

• nuclear wall

• mitochondria

• cell wall

The vacuole is lined by a membrane called

• tonoplast

• jacket

• cell membrane

• tonoplasm

Cell theory was proposed by 

• Virchow

• Schleiden and Schwann

• Robert Hooke

• B McClintock

Who for the first time developed electron microscope?

• Knoll and Ruska

• Rudolf and Kolliker

• Robert Hooke

• Swanson