Cell

Who is the father of Botany

• Robert hooke

• Theophrastus

• Robert brown

• Vircow

Who discovered the first free living cells

• Robert Hooke

• Purkinje

• Anton van Leeuwenhoek

• Robert brown

The dictum "Ominis- cellula-e- cellula"(cell arises from pre existing cells) was given by the following

• L . Pasteur

• R. Virchow

• M. Fleming

• H.A. Krebs

Following are a few definitions of Osmosis. Read carefully and select the correct definition.

• Movement of water molecules from a region of higher concentration to lower concentration through semi permeable membrane

• Movement of solvent molecules from a region of higher concentration to lower concentration

• Movement of solvent molecules from a region of higher concentration to lower concentration through permeable membrane

• none of these

The founder of cell theory was

• Wolf

• R. Virchow

• Leeuwenhoek

• Schleiden and Schwann

Which one of the following is not a feature of Prokaryotic cell ?

• Absence of nuclear membrane and the nucleus

• Absence of cell organelles

• Absence of genetic material

• Absence of Histone protein in the chromosome

The process of plasmolysis in plant cell is defined as:

• Breakdown of plasma membrane in hypotonic solution.

• Shrinkage of cytoplasm in hypertonic medium.

• Shrinkage of Nucleoplasm.

• None of these.

What do prokaryotic cells lack?

• Cell membrane

• Cytoplasm

• Cell wall

• Membrane bound nucleus

Cristae are associated with which of the following ?

• Cytoplasm

• Protoplasm

• Mitochondria

• Ribosomes

Given :

1. 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase

2. Which one (s) of the above are involved in karyokinesis :

• 1,2,3,4

• 1, 2, and 3 only

• 2 and 3 only

• 1 and 3 only