Energy from Plants Chapter 2. Lesson 1 What are the plants’ characteristics? Plants are made up of...
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![Page 1: Energy from Plants Chapter 2. Lesson 1 What are the plants’ characteristics? Plants are made up of many cells. These cells all do different jobs in the.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bf791a28abf838c8295a/html5/thumbnails/1.jpg)
Energy from Plants
Chapter 2
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Lesson 1
What are the plants’ characteristics?
• Plants are made up of many cells.• These cells all do different jobs in the plant• Plants have special cells they use to
absorb water and nutrients from the soil• Plants contain Chlorophyll, which makes
them green
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How Plants Make Food
• Photosynthesis – The process of making sugar
• Plants use sugar as food
• Carbon dioxide is absorbed from the air, water is absorbed from the soil, and chloroplasts trap the sunlight
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PHOTOSYNTHESIS
• The plant uses the sugars it makes
• The plant releases Oxygen that we breathe
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Chloroplasts
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Photosynthesis Song
Edublogs.tv Photosynthesis Song
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Parts of a Plant
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Stems
• Can be as thick as a tree trunk or as thin as a blade of grass
• Have 2 major functions– 1. carry water, minerals and food
between the roots and leaves– 2. Support the plant, holding up the
leaves so they can get sunlight
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Roots• Anchor or hold the plant to the ground
• Absorb or take in water and mineral nutrients from the soil
• Fibrous Roots– Grow away from the plant in search of water
• Taproots– Has a large main root, called the taproot.– It grows straight down– Stores food for the plant
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How Plants Reproduce
• Petals-colorful outer layer of flowers that help protect the insides that make new plants
• Sepals- the small, green leaves below the petals. They cover and protect the flower as it grows inside the bud
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How Plants Reproduce
• Pistil-small knoblike structures in the middle of the plant
• Stamens-smaller stalks surrounding the pistil. Pollen is made here.
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How Do Plants Reproduce?
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Pollen on the Move
• Pollen has to move from the stamen to a pistil in order for a seed to form.
• HOW CAN THIS HAPPEN???• Animals help this happen!• Animals are attracted by the
colors of the petals and to eat the nectar deep inside the flower.
• Pollen from the stamen is rubbed off onto the animals body
• The pollen is then rubbed off onto the pistil of the next flower the animal visits.
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Pollen in the Move
• Wind also can blow pollen from the stamen of one plant to the pistil of another
• After the fertilization, the flower begins to dry up and fall off
• A seed develops inside
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How a Plant Grows from a Seed
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Life Cycle of a Plant
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Seeds on the Move
• Seeds have to move away from each other to have room to grow.
• If they grew too close to one another they would compete for water, nutrients from the soil, and sunlight.
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Animal Helpers
• Animals eat fruit and when they do they eat the seeds also.
• The seed will pass through the digestive system onto the ground in the animal’s droppings.
• The animal will usually carry the seeds far from the adult plant so this helps scatter the seeds
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Wind as a Helper• Many seeds have wing-shaped seeds to
carry them far from the adult plant.
• When the seeds land, many are buried and new plants grow
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Water as a Helper
• Water can carry seeds from one location to another.
• Coconut seeds can float from one island to another and create new trees.
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New Plants from Plant Parts
• Some plants grow from stems, roots, or leaves
• Bulbs are underground stems that grow into new plants
• Potato plants sprout new plants right from the potato