B1.1.1 - Plant and Animal Cells Flashcards Preview

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Flashcards in B1.1.1 - Plant and Animal Cells Deck (26):
1

What are the structures inside a cell called?

Subcellular structures

2

What are the 2 main types of cells called?

Eukaryotic and prokaryotic

3

Which is bigger - eukaryotic or prokaryotic?

Eukaryotic

4

Where do eukaryotic cells keep their genetic material?

Nucleus

5

Where is the genetic material in a prokaryotic cell?

Cytoplasm

6

What is the size range for eukaryotic cells?

10 micro meters - 100 micro meters

7

What is the size range for prokaryotic cells?

1 micro meter - 10 micro meters

8

What are the functions of the nucleus?

-controls the activities of the cell
-contain the organism’s genetic material
-contain instructions to make new cells or organisms

9

What is a eukaryotic cell’s genetic material organised as?

Chromosomes

10

What determines a cell’s appearance and functions

Chromosomes

11

What is the cytoplasm?

A ‘jelly-like’ substance where chemical reactions occur to keep the cell alive

12

Name the features and functions of mitochondrion

-where respiration occurs
-where special protein molecules (enzymes) enable glucose and oxygen to react together
-this transfers vital energy to the organism

13

What allows oxygen and glucose to react together?

Special protein molecules (enzymes)

14

What 2 reactants create very important energy for its organism?

Glucose and oxygen

15

What is the cell membrane?

-A selective barrier that controls which substances pass into and out of the cell
-it contains receptor molecules

16

What are receptor molecules?

These send a signal to nerve cells when stimulated

17

What extra sub cellular structures do plant cells need?

-A cell wall
-chloroplasts
-vacuole

18

What do chloroplasts contain?

Chlorophyll

19

What does chlorophyll do?

Transfer energy from the Sun to the plant as light (used in photosynthesis)

20

What parts of the plant are chloroplasts in?

Only the green parts

21

What is a cell wall?

-surrounds the cell
-supports the cell
-makes the plant rigid and stable

22

What is a cell wall in plant cells made of?

A tough fibre called cellulose

23

What does the vacuole do?

-Helps the cell stay rigid
-supporting the plant
-keeping it upright

24

What is the vacuole filled with?

A watery solution of sugars and salts

25

Why do root cells not need chloroplasts?

They do not need access to the sun and can get nutrients from the soil surrounding it

26

Are algae eukaryotic or prokaryotic?

Eukaryotic