SB1d - Inside Bacteria

Question 1

Name the 4 structural components of bacterial cells.

Answer 1

Structure Chromosomal
DNA
Plasmid DNA
Flagella
Cell wall

Question 2

What is Chromosomal DNA?

Answer 2

chromosomal DNA is the DNA of bacterial cells is found loose in the cytoplasm and is not contained within a nucleus.

Question 3

What is Plasmid DNA?

Answer 3

Plasmids are small, closed-circles of DNA present in the bacteria’s cytoplasm. Unlike the chromosomal DNA, plasmid DNA can move from one bacterium to another giving variation.

Question 4

What is the Flagella?

Answer 4

Bacteria can have one or more flagella (singular: flagellum). These can rotate or move in a whip-like motion to move the bacterium.

Question 5

What is a cell wall

Answer 5

cell walls provide structure and protection. Only plant cell walls are made from cellulose.

Question 6

Are bacteria multicellular or unicellular?

Answer 6

unicellular