Who first explained that new cells are formed from pre-existing cells

1.  Theodore Schwann

2.  Rudolf Virchow

3.  Matthias Schleiden

4.  Robert Hooke

Mark the correct statement about centriole.

1. Forms basal body

2. Found in higher plant cells

3. Has ‘9 + 2’ organisation of microtubules

4. Is surrounded by plasma membrane

Select the wrong statement about eukaryotic cells.

1. They have well defined nucleus

2. Possess 70S ribosomes

3. May have a cell wall

4. No organelles are single membrane bound

Choose the correct option with respect to function of the cell organelles

Disc-shaped proteinaceous structure associated with centromere is called

1. Kinetochore

2. Secondary constriction

3. Both Primary and Secondary constriction

4. Nucleolar organizer

Select the incorrect match

1. Palade particle – Ribosome

2. Flagella – Cell movement

3. Centriole – Found in higher plants

4. Lysosome – Acid hydrolase

The given diagram represents the four different structures which one of these is correct containing material and function:-

1. A

2. B

3. C

4. D

Eukaryotic cells considered as more efficient than prokaryotic cells, due to -

1. compartmentalisation of cytoplasm

2. Infolding of membrane

3. Presence of cell wall

4. Aerobic respiration 

Which of the following cell organelle is absent in prokaryotic cell?

1. Ribosome

2. Lysosome

3. Mitochondria

4. 2 and 3 both 

ER, Golgi complex, lysosomes and vacuoles are included in endomembrane system because :-

1. Their function are similar 
2. Their structure are same
3. Their function are co-ordinated
4. Golgi complex, lysosomes and vacuoles are originated from the ER