Cell and Movement

Question 1

What is a cell?

Answer 1

A cell is a small self contained unit within a whole organisms

Question 2

What are some jobs common to all cell?

Answer 2

Jobs common to most cells are making protein and producing energy

Question 3

Why do cells work together?

Answer 3

Cells works together to form more complex multicellular organisms. E.g Animals, Plants and insects

Question 4

What is an example of cells working together?

Answer 4

An example of cells working together to carry out an overall job is the cardiac muscle cells and red blood cells working together to pump blood

Question 5

What do all cell contains?

Answer 5

All cells contain DNA, Ribosomes, Cell Membrane and Cytoplasm.

Question 6

What is protein synthesis ?

Answer 6

Protein synthesis is the process of creating protein molecules

Question 7

What do animal’s cells and plant’s cells have in common?

Answer 7

They're both Eukaryotic, as they contain a nucleus and membrane bound organelles.
Rough and smooth ER
Golgi Body
Mitochondria
Ribosomes
Cytoskeleton
Cytoplasm
Cell Membrane

Question 8

What are the differences in both cells?

Answer 8

Plant cell has a cell wall
It is a rigid outer covering that provides structure and protection
A plant cell has a chloroplast, and they’re the location of photosynthesis which allows the plant to convent sunlight into sugar
Plant cells have a large central vacuole and animal cells have small vacuoles
Animals cells has a lysosomes
Plant cells have plastids
Animal cells contains centersomes

Question 9

Diffusion

Answer 9

Diffusion is the movement of particles from an area of high concentration to an area of low concentration until there is an equal spread of particles

Question 10

In which states are molecules able to diffuse?

Answer 10

Molecules can be diffused liquid and gas

Question 11

Does diffusion require any energy?

Answer 11

Diffusion doesn’t require any energy from respiration

Question 12

What is a difference between concentration called ?

Answer 12

A difference in between the concentration is called the concentration gradient

Question 13

What is Urea?

Answer 13

Urea is a waste product inside cells. It diffuses out of the cells into the blood plasma and is excreted by the kidneys.

Question 14

What are the factors that affects diffusion?

Answer 14

The concentration gradient
The temperature(The higher the faster the rate of diffusion)
Distance the particles must travel(Faster, when the distance is shorter)
Surface area(Larger surface area)

Question 15

What do the dissolved substances have to travel through to go in or out of a cell?

Answer 15

The dissolved substances has to travel through a permeable cell membrane to get in or out of the a cell?

Question 16

Why do all living things rely on diffusion?

Answer 16

All living things rely on diffusion cause;
Getting raw material (Dissolved substances and gases)
Removing waste products (E.g from respiration)
For plant they use it for photosynthesis( Raw material in and waste product out)

Question 17

How does diffusion work in the lungs?

Answer 17

Oxygen in inhaled air diffuses through the lungs into the bloodstream. The oxygen is then transported throughout the body.

Question 18

How is Carbon dioxide related to diffusion?

Answer 18

Carbon dioxide is the waste gas produced by respiration. Carbon dioxide diffuses from body tissues into the bloodstream is exhaled via the lungs.

Question 19

What is osmosis?

Answer 19

Osmosis is the diffusion of water molecules, from a region where the water molecules are in higher concentration, to a region where they are in lower concentration, through a partially permeable membrane. Osmosis refers to the movement of water molecules only.

Question 20

What contains a high concentrated of water?

Answer 20

Dilute solutions

Question 21

What contains a low concentration of water

Answer 21

Concentrated solutions

Question 22

Cytoplasm

Answer 22

Cytoplasm is a gel like substance where most of the chemical reaction occurs.
Cytoplasm of cells is a relatively concentrated solution .It contains a relatively low concentration of water.

Question 23

What happens when osmosis happens to a plant cells?

Answer 23

When osmosis happens to plant cells the plant cells will expand, however the cell wall, will prevent it from bursting, the cell will instead become swollen, and this is called turgid.

Question 24

Do osmosis and diffusion requires energy?

Answer 24

No they don’t require any energy, as they’re moving down the concentration gradient.