Plant tissue and organ systems

3 types of plant tissues

3 types of plant tissues

Dermal, vascular, ground

2 types of dermal tissue

Epidermal and periderm

Epidermal tissue

1. a thin layer of cells that cover the surface of leaves, stems and roots

2. Root hair are an extension that increase the roots for water and nutrient absorption

3. Creates a waxy cuticle that protects the plant from water loss

Periderm tissue

1. In woody plants, epidermal tissue is replaced by [eriderm tissue

2. Produces bark on stem and roots

Vascular tissue

Transports water, nutrient and other chemicals throughput the plant

2 types of vascular tissue

Xylem and phloem

Xylem

1. transport water from the roots to the leaves of the plant

2. Once matured are no longer a living tissue

3. A tube from the roots to the shoots

Phloem

1. Transports sugars created by photosynthesis, other chemicals and hormones throughout the plant

2. Living tissue

Ground tissue

Composed of all the tissue in between dermal and vascular tissue. It performs different functions in different parts of the plant.

Ground tissue in roots

Stores of carbohydrates

Ground tissue in stems

provides storage and support

Ground tissue in leaves

performs photosynthesis

Photosynthesis

Light energy + CO2 + H2O = Glucose + O2

Organs in the plant system

Roots, leaves, stem and flower

The 2 organ systems

Shoot and Root system

Shoot system

1. Conduscts food and water

2. Photosynthesize

3. Reproduce sexually

Shoot system - leaf

1. Main photosynthetic structure of plant

2. Organelle called chroplast performs photosynthesis

3. Some act as support, protection, reproductiion and attraction

Shoot system - flower

1. Developed for sexual reproduction

2. Each flower both has male and female parts

3. Male has pollen grains

4. Female produces eggs

Pollination

The act of eggs being fertilized by pollen (no hanky-panky)

Shoot system - stem

1. supports branches, leaves and flowers

2. Provides a way to transport materials

Root system

1. Anchors the plant

2. Absorbs water and minerals thropugh tiny root hairs

3. Conducts water and nutrients

4. Stores food and nutrients

What are plant stem cells called?

Meristematic cells