Topic 1 Flashcards Preview

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Flashcards in Topic 1 Deck (67)
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1

Eyepiece lens

Part of microscope you look down

2

Magnification lens

How much bigger something appears

3

Objective lens

Part of microscope closest to specimen

4

Resolution

Smallest change that can be measured by an instrument

5

Aerobic respiration

Respiration in which oxygen is used to release energy

6

Cell membrane

Controls what goes in and out of a cell

7

Cell sap

Liquid found in vacuole of a plant cell

8

Cell wall

Tough layer, used for protection and structure
Made of cellulose in plants
Bacteria = flexible

9

Chlorophyll

Green substance inside chloroplasts

10

Chloroplasts

Green disc containing chlorophyll
Inside plant cells
Where a plant makes glucose using photosynthesis

11

Cytoplasm

Watery jelly like substance where the cell’s activities take place

12

Eukaryotic

A cell with a nucleus

13

Field of view

Circle of light you can see down a microscope

14

Mitochondrion

Sub-cellular structure in cytoplasm of eukaryotic cells

15

Ribosome

Sub-cellular structure that makes proteins

16

Scale bar

Line drawn on magnified image that shows scale

17

Vacuole

Storage space in cells
Plants = large permanent vacuole to keep them rigid

18

Acrosome

Small vacuole at end of tip of a sperm cell head, containing enzymes

19

Adaption

Features that something has to enable it to do certain things

20

Ciliated Epithelial Cell

A cell that lines certain tubes in the body and has cilia on the surface

21

Cilia

Small hair-like structure on surface of cells

Sg. Cilium

22

Diploid

Cell that has 2 sets of chromosomes

23

Egg cell

Female gamete

24

Haploid

Cell with one set of chromosomes

25

Embryo

Life that grows from a zygote (fertilised egg cell)

26

Enzyme

Protein
Substance that speeds up some processes of breaking things down

27

Epithelial cell

Cell found on surface of parts of the body

28

Fertilisation

Fusing of male and female gamete

29

Microvillus

A fold on the surface of a villus cell - increase surface area so digested food is absorbed more quickly

30

Oviduct

Tube that carries egg cells from ovaries to uterus