9.Grade Bacteria and Archaea

Which of the following are correct about Archaea?

• They live in very extreme conditions

• They have the same cell wall structure like bacteria

• Some have histone proteins

• The ones that are living in extremely high temperature are called Thermophiles

Which of the following are correct?

• Bacteria that are performing aerobic respiration have mitochondria

• the circular DNA found in bacteria are called plasmid

• cell wall of bacteria is made up of cellulose

• Some bacteria have capsule

The Asexual Reproduction of Bacteria is called

• Mitosis

• Binary fission

Which test tube is representing Obligate aerob bacteria

• Test tube number 1

• Test tube number 2

• Test tube number 3

There are beneficial bacteria living in our large intestine. They produce vitamins:

• Vitamin B and C

• Vitamin A and K

• Vitamin B and K

• Vitamin D and K

The picture is showing 2 bacteria.What is not correct about this picture?

• The process is called conjugation

• gene transfer is seen during this process

• this process increases genetic variation among bacteria

• there will be an increase in the number of bacteria