5A:Cells to Systems

Question 1

What are the four levels of cellular organisation in
living things?

Answer 1

specialised cells - have specific function and structural adaptations to carry out role

tissues - groups of similar cells working together to carry out particular function

organs - two or more tissues that work together to perform specialised task

systems - group of organs that work together to perform vital task

Question 2

give examples for each level of organisation for PLANTS.

Answer 2

specialised cells - root hairs, guard cells
tissues - root tissue
organs - leaf, roots
systems - shoot and root systems

Question 3

What is the difference between a vascular and
non-vascular plant? Give examples of each.

Answer 3

VASCULAR - contain vascular tissue that transport water, minerals and sugars throughout plant eg trees

NON-VASCULAR - do not contain vascular tissue and only requires simple tissues to function eg moss

Question 4

Name the two systems found in vascular plants. What is each system’s function?

Answer 4

ROOT -
- Underground
- Absorbs water and nutrients from soil
- Provides support & structure

SHOOT -
- Reproductive parts : flowers & fruit
- Non-reproductive parts: leaves & stems