B8- 1.4 and 1.5

• Biologie
• Middelbare school
• vwo
• Leerjaar 4

B8

Levels of organisation 1.4

Characteristics living organisms 1.5

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Biology is the study of life

Something is alive when it can show all seven characteristics of life:

Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition

1. Alive
2. Dead
3. Lifeless

1. Alive
2. Dead
3. Lifeless

1. Alive
2. Dead
3. Lifeless

Organisation levels

You can study life on different organisation levels

ORGAN

ORGANISM

ORGAN SYSTEM

TISSUE

On which level of organisation are you investigating if you study the following picture?

1. molecule
2. organelle
3. tissue
4. cell

Which part is the smallest?

1. Cell
2. Organ system
3. Cell organelle
4. DNA

Which example describes a population?

1. All rabbits on Schiermonnikoog
2. The plants in a forest
3. All organisms in a pond
4. A lioness with her 2 cups in the savannah

Cells

This chapter we will mainly look at the organisation level of cells.

You have seen some cell parts in year one, but we will look at some more this year.

WHAT IS NUMBER 1?

1. VACUOLE
2. CHLOROPLASTS
3. RIBOSOME
4. CYTOPLASM

WHAT IS NUMBER 6?

1. NUCLEUS
2. CELL MEMBRANE
3. CELL WALL
4. VACUOLE

WHAT IS NUMBER 2?

1. NUCLEUS
2. CELL MEMBRANE
3. CELL WALL
4. VACUOLE

What does a plant cell have that an animal cell has not?

1. nucleus
2. cytoplasm
3. celmembrane
4. chloroplasts

which one is a plant cell?

1. 1
2. 2
3. 3
4. 4

An animal cell has

1. a nucleus - a cell wall - chloroplasts
2. a nucleus - NO cell wall - NO chloroplasts
3. NO nucleus - a cell wall - NO chloroplasts
4. NO nucleus - a cell wall - chloroplasts

The firm layer around the cell made of cellulose is called

1. Cell Wall
2. Cell membrane
3. Vacuole
4. Nucleus membrane