Presentation on theme: "Structure & Function of Plants 5.10A compare the structures and functions of different species that help them live and survive."— Presentation transcript:
Structure & Function of Plants 5.10A compare the structures and functions of different species that help them live and survive
Plants Plants come in a variety of sizes -- from tiny mosses to giant redwood trees that are over 100 feet tall. The giant Sequoias are the largest living organisms on Earth.
They’re Everywhere! With the exception of a few places on the planet, you will find plants everywhere. Plants are vital for the herbivores to have food and continue to survive. Plants are producers in the food chain. Plant species have adapted to every climate -- from under the surface of the ocean to the tops of mountains. Ocean plants
Roots We'll start at the bottom with the roots. These structures are designed to pull water and minerals from whatever material the plant sits on. For water plants, the roots may be in the water. For traditional trees, the roots go deep into the soil. There are even plants that live on trees and their root system clings to branches. Plants and roots are growing on this tree
ROOTS Roots grow down into the ground Functions of roots – Anchoring the plant – Collecting water & nutrients – Storing food – storage roots are beets, carrots, sweet potatoes, and turnips Roots can be different sizes – Tap roots – Fibrous roots
STEMS Functions of stems – To provide support to the plant – The transport of water and food – Most grow upward, some grow sideways Stems do not all look alike. They can be thin or large and thick like the trunk of a tree.
Stem Transport System Inside the stem is a transport system that moves water and nutrients to the flowers and leaves of the plant along the stem. It’s like a tiny highway system inside the stem. Phloem Xylem
Leaf Function: Photosynthesis The most important function of the leaves is to conduct a process known as photosynthesis. Photosynthesis is a process by which plants change light energy from the sun and use it to make sugar. All plants are alike in one way: they need water and nutrients, CO 2, and sunlight to grow.
LEAVES Leaves come in a variety of shapes and sizes. – Larger leaves catch more sunlight and lose more water through transpiration. – Cacti have small spines to lessen the loss of water. Leaves are arranged on the stem in different ways.