SC8 #1 Cells Flashcards Preview

Biology > SC8 #1 Cells > Flashcards

Flashcards in SC8 #1 Cells Deck (19):
0

What are the characteristics of living thing

Responds to environment, reproduce, grows, gets rid of waste, needs energy

1

What is an example that responds to environment

Respond to hunger by eating

2

Examples of needing energy?

Plants need sunlight, water and carbon dioxide to make food

3

Example of growing?

Children grow taller, replace cells

4

Examples of reproducing?

Salmon lay eggs

5

Examples of getting rid of waste

Exhaling carbon dioxide, dead skin cells

6

What is the cell theory?

1)Cells are the basic unit of all life
2) all living things have one or more cells
3) all cells come from other living cells

7

What are prokaryotic cells and give an example

Cells that do not have organells with membrane around them, bacteria

8

What are eukaryotic cells and give an example

Cells that have organells with membrane around term (plant animal cells)

9

What's the difference between bacteria and viruses?

Bacteria can reproduce and viruses can't

10

What is cell membrane

Selectively permeable

11

What does selectively permeable mean

Let's some substances pass through but not others

12

What is contentration

The amount of substance in a certain place

13

When does diffusion happen

When particles move from a place of HIGH contentration to LOW contentration

14

What is osmosis

Diffusion of water

15

What do water particles move from

HIGH contentration to LOW concentration

16

Body system

Cells tissue organ organ system organism

17

What is tissue

Cells that have same structure and play the same role in the body

18

What is an organ

Tissues of different kinds that work together