Cell Structure and Functions

Name the scientist who introduced the term CELL. 

• Robert Hooke
• Leeuwenhoek
• Robert Brown
• Schwann

Omnis cellula e cellula means

• Life exists in cell only

• all living cells arise from pre-existing cells

• cell is the functional and structural unit of organisms

• all living cells are composed of cells

Cellular totipotency means

• to undergo mitotic divisions abd form a callus 
• capacity of living nucleated cells to regenerate any part or whole organism
• to survive in an artificial growth medium
• to cause natural death to an organism

Considering the shapes of bacteria find the incorrect matching

• Spherical shape - Cocci
• Rod shape - Bacillus
• Comma shape - Spirillum
• Helical - Spirochaete

Which of the following is not correct about cell wall of bacteria?

• in certain bacteria glycocalyx forms over cell wall
• cell wall varies in Gram + and Gram - bacteria
• it is contains peptidoglycan and hemicellulose
• it contains peptidoglycan and may also contain teichoic acid

Who discovered the nucleus in the cell?

• Leeuwenhoek

• Brown

• Purkinjee

• Schwann

Which of the following questions about Theodore Schwann is incorrect?

• He was a British Zoologist

• He reported that cells have a thin outer layer which is today known as plasma membrane

• He suggested that plant cells have cell walls which is its unique character

• He could explain how new cells were formed

Omnis cellula e cellula was explanation of

• Theodor Schwann

• Rudolf Virchow

• Robert Brown

• Matthias Schleiden

Which of the following is not a prokaryotic cell?

• Blue - green algae

• Mycoplasma

• PPLO

• Slime mould

When flagella are present on the entire surface of bacteria it is called

• Amphitrichous

• Peritrichous

• Lophotrichous

• Atrichous