Bellringer: Is It a Plant? (10 minutes)

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Presentation transcript:

Bellringer: Is It a Plant? (10 minutes) How do you DECIDE what makes a plant a plant? Examples: If it has a ________, I know it’s a plant. If it does__________, I know it’s a plant. STATE which are plants and which are NOT, then EXPLAIN HOW YOU KNOW. Give EVIDENCE for your statements.

What Defines a Plant? Topic 10: An Overview and Classification of Plants EDGENUITY HOMEWORK: 14.7 due next class!

All Plants Share What Characteristics? Eukaryotic Multicellular Autotrophic (photosynthetic) Stationary Cell walls made of cellulose

The Body Parts of a Plant (called ORGANS just like in us!) What do you think each of these 4 plant organs DOES for the plant?

Eventually, YOU WILL know ALL of these words and how they are related to the following functions: GROWTH, REPRODUCTION, WATER TRANSPORT, PHOTOSYNTHESIS, AND RESPIRATION Fruits Cones Seeds Cambium Guard Cells Phloem Xylem Root Hairs Root Cap Stomata Stamen Pistil Ovary Petals Sperm (pollen) Egg Sepal Filament Anther Style Stigma Meristematic Ground Dermal Vascular Flowers Leaves Stems Mosses Ferns Roots Angiosperms Gymnosperms Oxygen Respiration Transpiration Reproduction Growth Water Carbon Dioxide Photosynthesis Glucose Sunlight

Let’s Start With 3 Parts Today… Which are the MAJOR BODY PARTS, OR ORGANS, OF THE PLANT? Fruits Cones Seeds Cambium Guard Cells Phloem Xylem Root Hairs Root Cap Stomata Stamen Pistil Ovary Petals Sperm (pollen) Egg Sepal Filament Anther Style Stigma Meristematic Ground Dermal Vascular Flowers Leaves Stems Mosses Ferns Roots Angiosperms Gymnosperms Oxygen Respiration Transpiration Reproduction Growth Water Carbon Dioxide Photosynthesis Glucose Sunlight

Roots The three functions of roots are Magnified Root Hairs (increase surface area for absorption) A single tap root with hairs Fibrous Roots The three functions of roots are absorb dissolved nutrients and water from the soil anchor the plant store food The root cap is the place where the roots are GROWING!

Stems The 4 functions of stems are to support the plant connect the roots and the leaves transport water and minerals UP the stem transport glucose and other nutrients that the plant makes DOWN to the roots for storage.

Leaves The major functions of the leaf are: capture as much light energy as possible take in CO2 /release O2 to make food (glucose) in photosynthesis. Transpiration

4 Plant Tissues Tissue Type Description Major Feature(s) Dermal Why Does the Plant Need It? Major Feature(s) Similar to What in Humans? Dermal Meristematic Vascular Ground

4 Plant Tissues Dermal Meristematic Vascular Ground Dermal tissue – light blue Ground tissue – yellow Vascular tissue - purple Dermal Meristematic Vascular Ground

1. Dermal Tissue Thick, waxy, tough Protects the outside of the plant from damage and protects it from water loss Found on the surface of leaves and stems- called the epidermis; waxy covering is the cuticle.

What is this like in humans?

2. Meristematic Tissue A plant continues to GROW as long as it lives because plants have meristems, the only cells that continually divide, generating new cells. One example of a meristem is a Root meristem, located at the tips of the roots, and the apical meristem in the buds of shoots, provides elongation of the plant down into the soil and up into the air (growth). Growth in length of roots is concentrated near the root’s tip. The root tip is protected by a root cap, which secretes a substance that helps digest the earth as the root tip grows through the soil.

Three Types of Meristem Tissue

What is this like in humans? Stem cells! These are cells that are no particular body part that can become any body part that is needed. These cells may remain in a non-dividing phase for long periods of time until they are activated by a normal need for more cells to maintain tissues, or by disease, or tissue injury.

3. Vascular Tissue A system of hollow tubes, like a pipeline Purple A system of hollow tubes, like a pipeline Transports water and nutrients through roots, stems and leaves and glucose throughout the plant 2 types of vascular tubes: Xylem= water (transpiration) Phloem= food

Vascular Cambium is meristem (cells that divide) that makes the vascular tissue of the plant: Xylem (water transport) and Phloem (sugar transport)

What is this like in humans?

4. Ground Tissue Cells that lie between dermal and vascular tissues YELLOW Cells that lie between dermal and vascular tissues Storage of sugar in roots and fruits Supports the plant— thick, rigid, structural Site of photosynthesis in the leaves (parenchyma)

What is this like in humans? Adipose tissue stores fat

LAB STATIONS—35 minutes total The purpose of the Lab Activity is to: Look at REAL roots, stems, and leaves To learn and use new vocabulary about the plant Work with your classmates to apply what you have learned today about these parts, what kinds of tissue they are made of, and what their jobs are in the plant.

LAB STATIONS—35 minutes total There are 7 Lab Stations You have 3-4 minutes at each station to LOOK at the plant part and to answer the questions about that part. You have 1 minute to rotate and begin the next station. If you do not finish you will have to come in at lunch or after school to finish!

HOMEWORK Complete 14.7 in Edgenuity!! Due next class!!