Biology Paper 1 GCSE Exam Flashcards Preview

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Flashcards in Biology Paper 1 GCSE Exam Deck (254)
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1

Which cells can you find a cell wall in?

Plant Cell
Bacterial Cell

2

Which cells can you find a cell membrane in?

Plant Cell
Animal Cell
Bacterial Cell

3

Which cells can you find a nucleus in?

Plant cell
Animal Cell

4

Which cells can you find a cytoplasm in?

Plant Cell
Animal Cell
Bacterial Cell

5

Which cells can you find a Ribosomes in?

Plant Cell
Animal Cell
Bacterial Cell

6

Which cells can you find a mitochondria in?

Plant Cell
Animal Cell

7

Which cells can you find a chloroplasts in?

Plant Cell

8

Which cells can you find a vacuole in?

Plant Cell

9

Which cells can you find a flagella?

Bacterial Cell

10

Which cells can you find a Plasmid?

Bacterial Cell

11

How do you calculate the magnification?

Image height / Object height

12

What is 1 micrometre in mm?

0.001

13

What is 1 nanometre in mm?

0.000000001

14

What is the advantage of a light microscope?

Easy to use and inexpensive

15

What are the advantages of a electron microscope?

Can see smaller thing and more detail. It also has a higher resolution and magnification

16

What is the resolution of an electron microscope?

1 nanometer

17

What does magnification mean?

The act or process of enlarging the physical appearance or image of something.

18

What is a specialised cell?

A cell which is adapted to carry out a particular function

19

What happens when a cell differentiates?

It acquires different sub-cellular structures to enable it to carry out a certain function.

20

What are some examples of a specialised cell?

ciliated cell
Xylem cell
nerve cell
sperm cell
root hair cell
phloem cell
red blood cell
muscle cell

21

What is the function of a sperm cell and how is it adapted?

Head contains genetic information and an enzyme to help pentrate the egg cell membrane and fertilise the egg.

22

What is the function of a root hair cell and how is it adapted?

Has long fingers which gives it a large surface area which helps absorb water and mineral irons from the soil

23

What is the function of a ciliated cell and how is it adapted?

Has a tiny thin layer of tiny moving hairs called cilia which push and move mucus from one place to another

24

What process do cells use oxygen?

Respiration

25

How does the mitochondria in a sperm help it to swim>

It releases energy so it can swim

26

Why does a bacterial cell not contain mitochondria?

There is not enough room in a bacterial cell

27

Why is a leaf cell specialised to carry out photosynthesis?

It has many chloroplasts

28

Put this in order of size from the smallest to the largest:
Chromosome
nucleus
gene
cell

Gene
Chromosome
Nucleus
Cell

29

What are chromosomes made out of?

Small sections called genes

30

What is a stem cells?

An undifferentiated cell