MODULE 3 (PROKARYOTES)

Question 1

is a phospholipid bilayer with embedded proteins which
regulates the entrance and exit of substances into and out of the cytoplasm.

Answer 1

Cell Membrane

Question 2

are the extension of cell membrane used for attachment of enzymes that carry on metabolic activities.

Answer 2

Mesosomes

Question 3

maintains the shape of the cell. The cell wall of bacteria contains peptidoglycan which is a complex molecule containing a unique amino disaccharide and peptide fragments.

Answer 3

Cell wall

Question 4

is a semifluid solution composed of water and inorganic and organic molecules encased by the plasma membrane.

Answer 4

Cytoplasm

Question 5

is a layer of polysaccharides lying outside the cell wall. It functions as a receptor and protection to the cell.

Answer 5

Glycocalyx

Question 5

is a region where DNA is located. The DNA is coiled up into a single chromosome. It also contains extra-chromosomal plasmids.

Answer 5

Nucleoid

Question 6

is a rigid tubular structure used by bacteria to pass DNA from cell to cell.

Answer 6

Sex Pilus

Question 7

helps in the movement of the cell. It has a filament, a hook, and a basal body.

Answer 7

Flagellum

Question 8

are small, bristle-like fibers that sprout from the cell surface. They help- in the attachment of bacteria to the surface.

Answer 8

Fimbriae

Question 9

serves as storage of various substances such as carbohydrates, glycogen, phosphate, and fats which can be used when needed.

Answer 9

Inclusion body

Question 10

is a tiny particle where protein synthesis takes place.

Answer 10

Ribosome

Question 11

helps the cell in survive under harsh conditions.

Answer 11

Endospore