Yr6 - S1 - Microorganisms

Question 1

What is Organism?

Answer 1

A living thing that need one or more cells to maintain life.

Question 2

What is Metabolism?

Answer 2

A living thing must consume energy and eat nutrients/food to sustain there life.

Question 3

What is Homeostasis?

Answer 3

It is the regulation of internal physical and chemical conditions to stabilise life.

Question 4

What is Growth?

Answer 4

Cells become larger in size or multiply themselves so that they grow.

Question 5

What is Reproduction?

Answer 5

Its when a living thing reproduces itself to populate in its environment.

Question 6

What is Response?

Answer 6

Its when a living thing reacts to stimulus in its environment.

Question 7

What is Evolution?

Answer 7

When a population changes over time to adapt to its environment.

Question 8

What are the characteristics every living thing has to have to be a living thing?

Answer 8

Organism/Growth/Response/Evolution/Homeostasis/Metabolism

Question 9

What are Viruses?

Answer 9

Viruses can only live and reproduce inside other living cells. They can cause infections such as measles, chickenpox and influenza.

Question 10

What is Bacteria?

Answer 10

Bacteria is a single-celled micro organism that can cause food poisoning and sour thoughts. Yet they can also be helpful. Bacteria helps digest our food and is found in yogurt. They where the first lifeforms ever to be seen on earth.

Question 11

What is Protozoa?

Answer 11

Protozoa are single-celled micro-organisms and often found in fresh water. They cause diseases such as malaria and sleeping sickness.

Question 12

What is Fungi?

Answer 12

Fungi is a very useful micro-organism. Yeast is a fungi and is used to create bread, beer and some alcohol.

Question 13

What is Algae?

Answer 13

Seaweed is a type of algae and provides food and shelter for marine animals.

Question 14

What micro organism is not specifically a living thing?

Answer 14

Viruses is not specifically a living thing because it is not made up of cells.

Question 15

What did Dr Alexander Fleming do?

Answer 15

He observed and discovered mould that produced a substance that prevented bacterial growth.

Question 16

What did Dr Howard Florey and Dr Ernest Chain do?

Answer 16

They isolated Penicillin (A mould that prevented bacterial growth). They treated/experimented with mice and then with people. They found out how to create a mass of Penicillin with the help of Oxford University in England.

Question 17

How does carbon dioxide help bread rise?

Answer 17

Carbon Dioxide is one of the major gasses responsible for livening in baking. In cakes, it comes from the reaction of sodium bicarbonate under acidic conditions. In bread making, the yeast organisms expel carbon dioxide as they feed off sugars.

Question 18

Witch micro organisms are entirely unicellular?

Answer 18

Protozoa and Bacteria are entirely unicellular.

Question 19

What does Salmonella bacteria cause?

Answer 19

This bacteria causes food poisoning.

Question 20

What do viruses need to survive?

Answer 20

Viruses need a living cell to survive and reproduce.

Question 21

Explain the role of yeast in the process of making bread.

Answer 21

Yeast eats the sugar in bread dough and whilst consuming the sugar the yeast organisms expel carbon dioxide that makes bread rise and has pockets of gas.

Question 22

What does yeast produce?

Answer 22

Carbon dioxide and alcohol.

Question 23

What are two ways bacteria can be helpful.

Answer 23

• Helps digest your food

- Used to make cheese and yogurt

Question 24

What bacteria causes throat infections?

Answer 24

This bacteria is called Streptococcus.

Question 25

What are the three illnesses viruses cause?

Answer 25

Measles, chicken pox and influenza.

Question 26

What is condensation?

Answer 26

The processes of when a gas turns into a liquid.

Question 27

What is sublimation?

Answer 27

The process of a solid turning straight into a gas.

Question 28

What is deposition?

Answer 28

When a gas turns straight into a solid.

Question 29

How are virus infections prevented?

Answer 29

They can be prevented using vaccines.

Question 30

How are bacterial infections prevented?

Answer 30

They are treated using antibiotics.

Question 31

What are two ways fungi can be helpful?

Answer 31

• They are used in the indigence to make bread and beer.

- Penicillin is a type of fungi that is used to treat bacterial infections.

Question 32

What is a substance that sublimates?

Answer 32

Carbon dioxide is known as dry ice when it is cold enough to be a solid.