Biology-Chapter 1 Flashcards Preview

Biology > Biology-Chapter 1 > Flashcards

Flashcards in Biology-Chapter 1 Deck (26):
1

Magnification

The amount that an image of something is scaled up when viewed through a microscope

2

Resolution

It is the shortest distance between two points of a specimen that can still be distinguished by the observer or camera system as separate entities.

3

Organism

An organism refers to any individual living things that can react to stimuli, reproduce, grow, and homeostasis

4

Nucleus

the part of the animal cell that controls the cell.

5

Cytoplasm

A 'jelly like' substance where the chemical reactions take place

6

Cell membrane

It is a wall around the cell that controls what goes in and what goes out

7

Mitrochondria

This is where respiration happens

8

MRS GREN

It stands for Movement, Respiration, Sensitivity, Growth, Respiration, Excretion and Nutrition

9

Cell Wall

This strengthens and provides support for the Plant Cell

10

Vacuole

This contains a water liquid called sap

11

Chloroplasts

This is where photosynthesis happens

12

Micrscope

An instrument used for viewing very small objects such as cells, samples etc.

13

Specimen

An individual animal,plant etc. used as an example of its species

14

Slide

It is a thin flat piece of glass, used to hold objects for examination under a microscope

15

Cell

A microscopic structure containing material enclosed by the basic structural unit of organisms

16

Unicellular Organisms

An unicellular organisms only have one cell

17

Specialised Cell

A cell that has a specialised job to do something

18

Nerve Cell Adaptations

The nerve cell has several adaptations which allows it to carry out its necessary functions.

19

Sperm Cell adaptations

One example: The head contains genetic information and an enzyme to help penetrate the egg cell membrane

20

Egg cell adaptation

A single egg cell is called an ovum. Collectively, eggs and sperm are called gametes or sex cells. When fertilisation occurs, an egg (ovum) and a sperm cell fuse to form a zygote. Eggs and sperm have several important adaptations linked to their structure.

21

Root hair adaptation

Plants absorb water from the soil by osmosis. Root hair cells are updated for this by having a large surface area to speed up osmois

22

Multicellular Organisms

Something which has more than one cell

23

Red blood cell adaptation

They have adaptations that make them suitable for this: they contain haemoglobin - a red protein that combines with oxygen.

24

Diffusion

The spreading of something more widely and quickly

25

The rate of diffusion

How quickly something spreads widely and quickly

26

Binary Fission

A sexual reproduction by a separation of the body into two new bodies