Cell Organelles and Structures

Question 1

What is a cell wall and what it is made of?

Answer 1

an organelle that provides a structure for the cell and organism. It is made of cellulose

Question 2

What do cell walls provide to a plant cell?

Answer 2

structure for the cell and organism and support as a result (no skeleton)

Question 3

Where are cell walls found?

Answer 3

plants, algae, fungi and most bacteria

Question 4

What does the nucleus contain?

Answer 4

DNA, nucleolus, and ribosomes.

Question 5

What does DNA do?

Answer 5

Gives information about the production of proteins.

Question 6

What does the nucleolus do and where is this found in the nucleus?

Answer 6

found in the nucleus. Makes ribosomes

Question 7

What is the nucleus responsible for?

Answer 7

Heredity

Question 8

In proportion to the other organelles, how large is it?

Answer 8

The largest, (if there are no vacuoles).

Question 9

What are chloroplasts?

Answer 9

the site where photosynthesis occurs. The are green because they contain chloropyll. Chloroplasts store energy.

Question 10

What is photosynthesis?

Answer 10

A chemical reaction where water and CO2 using light, produce glucose and oxygen. oxygen is a waste product

Question 11

What are vacuoles?

Answer 11

Storage sites for food, water and wastes. They are usually found in plant cells.

Question 12

What is the size of a vacuole compared to the other organelles

Answer 12

It is the largest

Question 13

what is the nucleolus?

Answer 13

It is found in the nucleus and makes ribosomes.

Question 14

What are the mitochondria?

Answer 14

organelles that release energy from food (respiration reaction). Some muscle cells have 20 000 mitochondria.

Question 15

What is the endoplasmic reticulum?

Answer 15

A series of folded membranes that allow movement and the synthesis of proteins.

Question 16

What are smooth ER?

Answer 16

ribosomes not attached to ER

Question 17

What are rough ER

Answer 17

ribosomes attached to ER

Question 18

What do ribosomes do?

Answer 18

Synthesise (make) proteins (by sticking ‘bits’ together)

Question 19

How do ribosomes behave?

Answer 19

They perform freely or are attached to the endoplasmic reticulum.

Question 20

Where are ribosomes made?

Answer 20

In the nucleus.

Question 21

What role do lysosomes play?

Answer 21

Lysosomes digest things, including food, they can break down worn out organelles or destroy viruses and bacteria.

Question 22

What sorts and packages proteins for transport within or outside the cell?

Answer 22

Golgi bodies.

Question 23

What do Golgi bodies look like?

Answer 23

stacked flattened membranes (pancakes maybe)

Question 24

What can protein be?

Answer 24

structures, enzymes / hormones

Question 25

What can proteins do?

Answer 25

Build and control things.

Question 26

What is cell division called?

Answer 26

mitosis

Question 27

Where does it divide from?

Answer 27

the nucleus

Question 28

Who created the cell theory?

Answer 28

Robert Hooke and Robert Browne

Question 29

What is the cell theory?

Answer 29

1. All living organisms are composed of at least one cell.
2. The cell is basic unit of structure / organisation.
3. Cells come from pre-existing cells.

Question 30

What is some evidence to support cell theory?

Answer 30

Light microscopes allowed first cells to be observed. When technology (better resolution and magnification)improved, nuclei were observed and eventually cell division could be seen.

Question 31

Why do plants( lettuce) wilt?

Answer 31

water lost in cells causing the cell membrane to detract from the cell wall.