bacteria and viruses basics

Question 1

what is a part which may or may not be found on virus

Answer 1

phospholipid layer

Question 2

what is contained in the phospholipid layer of a virus?

Answer 2

1- lipids

2- protein molecules on viruses for attachment

Question 3

what type of cells are viruses classified as and why?

e.g.: multicellular because has many cells

Answer 3

acellular because they are non-living and they do not have internal organelles

Question 4

what is the name of the protein coat of viruses?

Answer 4

capsid

Question 5

what type of core do viruses have and what is found in its core?

Answer 5

nucleic acid core which consist of DNA or RNA

Question 6

what type of cell are bacteria’s and why?

Answer 6

unicellular as they consist of a single cell

Question 7

what is the name of bacteria’s cell wall?

Answer 7

peptidoglycan

Question 8

what organelles are found in bacteria?

Answer 8

1- cell wall
2- ribosome
3-cytoplasm
4- plasmid

Question 9

what specific type of ribosome is found in bacteria which are also found in chloroplast?

Answer 9

70S

Question 10

what is contained in the plasmid?

Answer 10

DNA

Question 11

what is the free floating chromosome called?

Answer 11

nucleoid

Question 12

what are 2 main functions of the plasmid?

Answer 12

1- able to make antibiotic resistant bacteria

2- use for growth

Question 13

what do bacteria’s not contain? and give 2 examples

Answer 13

double membrane organelles like
1- nuclease
2-golgi
3-endoplasmic reticulum
4- mitochondrion

Question 14

what is the relative size of a bacteria?

Answer 14

1-5 micrometer

Question 15

what is the inner folding’s of the cell membrane in bacteria called?

Answer 15

mesosomes

Question 16

what are the 2 function of the inner folding of the cell membrane in bacteria

Answer 16

1-increase surface area for enzyme activity

2- involved in cell replication

Question 17

name all the structure found in prokaryotes

Answer 17

cytoplasm, nucleoid,plasmid,ribosome70s,cell membrane, mesosomes, cell wall, capsule, periplasmic space, pili, flagella

Question 18

what is the periplasmic space?

Answer 18

space between the cell membrane and cell wall

Question 19

what are all the 6 features of prokaryotes?

Answer 19

1-unicellular
2-no double-membraned bound organelles
3-0.5-5 micrometers
4-naked DNA{ not associated with histone proteins}
5- have Pilli, flagella
6- may contain a capsule for protection