virus and bacteria

Question 1

What are the 4 types of nucleotides that make up DNA?

Answer 1

Adenine, Guanine, Thymine, Cytosine,

Question 2

Describe the steps of the lyctic cycle.

Answer 2

Attatchement, Entry, Replication, Assembly, Release.

Question 3

What do viruses consist of?

Answer 3

Genetic information enclosed in a protein structure ( called capsid)

Question 4

What do nucleotides consist of?

Answer 4

Sugar, Phosphate, nitrogenous base

Question 5

What part of the cell makes proteins?

Answer 5

Ribosomes

Question 6

What is needed for DNA replication to occur?

Answer 6

Nucleus

Question 7

What are “Rungs” of the DNA ladder made of?

Answer 7

Adenine, Cytosine, Thymine, Guanine ( The nitrogenous bases)

Question 8

What is the name of the sugar in DNA?

Answer 8

Deoxyribose

Question 9

What is the name of the sugar in RNA?

Answer 9

Ribose

Question 10

What are the cells that make our organs and tissues?

Answer 10

Somatic cells

Question 11

What is the division of the cytoplasm?

Answer 11

Cytokinesis

Question 12

What are the four events of mitosis?

Answer 12

Prophase, Metaphase, Anaphase, Telophase

Question 13

What is the longest phase of mitosis?

Answer 13

Prophase

Question 14

What is the shortest phase of the cell cycle?

Answer 14

Cell division ( mitosis)

Question 15

Which part of the cell cycle does the chromatids move to opposite places?

Answer 15

Anaphase ( mitosis)

Question 16

The only cells that are not somatic-

Answer 16

sex cells (gametes)

Question 17

What kills or slow downs viruses?

Answer 17

Antibiotics

Question 18

What bacteria lives in extremeenviroments?

Answer 18

archaebacteria

Question 19

What bacteria lives in hospitable enviroments?

Answer 19

Eubacteria

Question 20

What is bacteriophage?

Answer 20

A virus that infects bacteria cells

Question 21

What does Thymine pair with?

Answer 21

Adenine

Question 22

What does Guanine pair with?

Answer 22

Cytosine

Question 23

What does Adenine pair with?

Answer 23

Thymine

Question 24

What does Cytosine pair with?

Answer 24

Guanine

Question 25

What is a virus?

Answer 25

Non-living substances that can reproduce in a living host cell ( genetic information in capsid)

Question 26

What are the steps of Lytic cycle?

Answer 26

1. Attachment- virus attatches itself to host cell 2. Entry- genetic material injects into host cell 3. Replication- Virus overtakes cells metabolism making protein and nucleic acid by host organelles 4. Assembly- Proteins and nucleic acid assemble new virus 5. Release- Virus enzymes burst cell so virus release and infects more

Question 27

What are the steps of Lysogenic cycle?

Answer 27

1. Attatchement- virus attatches itself to host cell 2- Entry- Genetic information injects into host cell. 3. Integration- Viral DNA integrates into the host cells genome 4. Lysogenic reproduction- Host cells replicate, virale DNA and host cells DNA copied ( daughter cells=new virus) 5. Induction- Infected cells exposed to certain enviromental conditions. DNA activates and enters lyctic cycle. 6. Replication- Virus overtakes cells metabolism creating protein and nucleic acids by cells organelles. 7. Assembly- Proteins and nucleic acids assemble a new virus 8. Release- Virus enzymes burt cell so virus release and infects more.