Cells

Question 1

What is another word for a living thing?

Answer 1

An organism

Question 2

Organisms are made of tiny building blocks, called what?

Answer 2

Cells

Question 3

What do you use a microscope for?

Answer 3

To magnify tiny things that the eye can’t otherwise see (like cells)

Question 4

Name some key words relevant to using a microscope

Answer 4

Specimen (object you look at), slide (the specimen is placed on the the slide in a drop of water), coverslip (a second slide over the top to keep the specimen safe), stain (can help you see parts of the cell)

Question 5

What are the 7 life processes that organisms carry out?

Answer 5

Movement, reproduction, sensitivity, growth, respiration, excretion, nutrition

Question 6

What are the 6 parts of a cell?

Answer 6

Cell surface membrane, nucleus, cytoplasm, chloroplast, cell wall, vacuole

Question 7

What is the cell surface membrane?

Answer 7

It is a thin skin around the cell that keeps the cell together and controls what goes into and out of the cell

Question 8

What is the nucleus?

Answer 8

It controls the cell (a bit like a brain)

Question 9

What is cytoplasm?

Answer 9

It is a jelly like substance where most chemical reactions happen (including respiration)

Question 10

What is a chloroplast?

Answer 10

It contains chlorophyll to trap sunlight for photosynthesis

Question 11

What is a cell wall?

Answer 11

It is made of cellulose and provides support

Question 12

What is a vacuole?

Answer 12

It provides storage space and is filled with cell sap

Question 13

What are the similarities between animal and plant cells?

Answer 13

Both have nucleus, cytoplasm, cell membrane, mitochondria

Question 14

What do only plant cells have?

Answer 14

A cell wall, a vacuole and chloroplasts

Question 15

What is a unicellular organism?

Answer 15

An organism that is made up of one cell

Question 16

What do unicellular organisms have to help them survive?

Answer 16

Adaptations

Question 17

What do a group of similar cells group together to become?

Answer 17

Tissue

Question 18

What do a group of tissues work together to make?

Answer 18

An organ

Question 19

What do a group of organs work together to make?

Answer 19

An organ system

Question 20

What is a multicellular organism made up of?

Answer 20

Several organ systems

Question 21

What is diffusion?

Answer 21

The way stuff moves into and out of cells

Question 22

Respiration is a chemical reaction. Where does it happen?

Answer 22

In every cell of every living organism

Question 23

What is respiration?

Answer 23

The process of releasing energy from glucose

Question 24

Why is respiration important?

Answer 24

Because the energy released is used for all the other chemical reactions that keep you alive (like muscle contraction)

Question 25

What is the difference between aerobic and anaerobic respiration?

Answer 25

Aerobic uses oxygen

Question 26

What is the word equation for aerobic respiration?

Answer 26

glucose+ oxygen -> carbon dioxide + water + energy

Question 27

Anaerobic respiration is less efficient (ie produces less energy). When does it happen?

Answer 27

Usually only when cells can’t get enough oxygen (eg when you are exercising)

Question 28

What is the word equation for anaerobic respiration in humans?

Answer 28

Glucose -> lactic acid + energy

Question 29

What is the word equation for anaerobic respiration in microorganisms?

Answer 29

Glucose -> carbon dioxide + ethanol

Question 30

Give an example of how a unicellular organism has adapted to its environment.

Answer 30

An amoeba that lives in water has a contractile vacuole to squeeze out excess water.