4.2.3.1 Plant Tissues Flashcards
1
Q
What are plants made of?
A
- organs like:
- stems
- roots
- leaves
2
Q
How are plant organ systems made?
A
- plant organs working together
3
Q
What do plant organ systems do?
A
- perform various tasks that a plant needs to carry out to survive
- e.g. transporting substances around the plant
4
Q
What are examples of plant tissues?
A
- epidermal tissue
- palisade mesophyll tissue
- spongy mesophyll tissue
- xylem and phloem
- meristem tissue
5
Q
What is the epidermal tissue’s function?
A
- covers the whole plant
6
Q
What is the palisade mesophyll tissue’s function?
A
- part of the leaf
- most photosynthesis happens here
7
Q
What is the spongy mesophyll tissue’s function?
A
- part of the leaf
- contains big air spaces to allow gases to diffuse in and out of cells
8
Q
What is the xylem and phloem’s function?
A
- transport water, mineral ions and food around the plant
9
Q
What is the meristem tissue’s function?
A
- found at growing tips of shoots and roots
- able to differentiate into different types of plant cells
10
Q
What is the structure of the epidermal tissues?
A
- covered with waxy cuticle
- helps reduce water loss by evaporation
11
Q
What is the structure of the upper epidermis tissues?
A
- transparent
- so light can pass through to palisade layer
12
Q
What is the structure of the palisade mesophyll tissues?
A
- lots of chloroplasts
- near the top of leaf where they can get most light
13
Q
What is the structure of the xylem and phloem?
A
- form a network of vascular bundles
- deliver water and other nutrients to entire leaf and take away glucose produced
- support structure
14
Q
What are the tissues adapted for?
A
- gas exchange
- e.g. lower epidermis is full of stomata which are controlled by guard cells
- e.g. air spaces in spongy mesophyll tissue increase rate of diffusion of gases
