SEEDS AND GROWING PLANTS
PARTS OF A PLANT
Roots -> Take in water and food (mineral
salts) from soil. Anchors plants. The roots
of a plant are sprea...
FUNCTION OF PLANT PARTS
Root
The root is the part of the plant that takes in water and minerals for
the plant.
Roots have ...
PARTS OF A FLOWER
What are seeds?
Parts of a seed – seed coat
Why are seeds so different?
Shape Size Colour Texture
• Cactus seed under a powerful microscope
Seed coat texture
Parts of a seed – Inside the seed
Parts of a seed
First leaves
Epicotyle = stem
What do seeds need to
GERMINATE?
Oxygen - Growth
Sun - Energy for PHOTOSYNTHESIS
Temperature – Cold? Hot? Warm?
Water - Ph...
GERMINATION
What is germination?
Steps:
1. Seed coat breaks
2. Radicle becomes
ROOT
3. Hypocotyl and
epicotyl become the
S...
PARTS OF A SEED - INSIDE
Plants need NUTRIENTS
Carbon
Oxygen
Hydrogen
Soil nutrients
Nitrogen – Growth, photosynthesis
Phosphorus – photosynthesis, flowering
Potassium – build proteins, prevent disease
Calci...
MADE BY : C.ABHIROOP REDDY
CLASS : V-C
ROLL.NO : 23
SUB.TEACHER : MRS.NEERAJA RANI MADAM
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seeds

  1. 1. SEEDS AND GROWING PLANTS
  2. 2. PARTS OF A PLANT Roots -> Take in water and food (mineral salts) from soil. Anchors plants. The roots of a plant are spread out. Stem -> "Like a straw", transports water through plant. Raises the height of flowers and leaves. Brings closer to light. Structural. The stem is made up of little tubes. Leaves -> Different shapes. Almost always green but sometimes covered with another colour such as red. Green substance in leaves -> chlorophyll. Leaves make food for the plant. To do this they need the water and mineral salts obtained from the soil. They are carried inside little veins in the leaf. To make food leaves also need sunshine and CO2. Flowers - > Flowers produce seeds which form new plants. Space and warmth also needed for a plant to grow.
  3. 3. FUNCTION OF PLANT PARTS Root The root is the part of the plant that takes in water and minerals for the plant. Roots have root hairs that increase the surface area for more water absorption. Stem The stem has vessels that transport sap and water throughout the plant. Sap is a nutrient-rich fluid that contains a lot of sugar. Leaf Two Functions of the Leaf Photosynthesis is the process when leaf cells containing chlorophyll take in carbon dioxide and water and using sunlight, make sugar and oxygen. Transpiration is the loss of water from the leaf. This helps to draw water up through the plant from the roots. Leaf Cross-Section Upper and Lower Epidermis - protective layers on the upper and lower sides of the leaf Cuticle - waxy layer on the upper epidermis to reduce water loss Palisade Cell Layer - layer without chloroplasts beneath the upper epidermis Spongy Mesophyll Layer - layer beneath palisade layer containing chloroplasts which photosynthesise sugars; also contains veins carrying xylem and phloem, and many air spaces for exchange of carbon dioxide and oxygen Stoma (Plural: Stomata) - pores in the lower epidermis that are surrounded by bean-shaped guard cells that contain chloroplasts.
  4. 4. PARTS OF A FLOWER
  5. 5. What are seeds?
  6. 6. Parts of a seed – seed coat
  7. 7. Why are seeds so different? Shape Size Colour Texture
  8. 8. • Cactus seed under a powerful microscope Seed coat texture
  9. 9. Parts of a seed – Inside the seed
  10. 10. Parts of a seed First leaves Epicotyle = stem
  11. 11. What do seeds need to GERMINATE? Oxygen - Growth Sun - Energy for PHOTOSYNTHESIS Temperature – Cold? Hot? Warm? Water - Photosynthesis and growth
  12. 12. GERMINATION What is germination? Steps: 1. Seed coat breaks 2. Radicle becomes ROOT 3. Hypocotyl and epicotyl become the STEM 4. First leaves grow = PHOTOSYNTHESIS First leaves
  13. 13. PARTS OF A SEED - INSIDE
  14. 14. Plants need NUTRIENTS Carbon Oxygen Hydrogen Soil nutrients
  15. 15. Nitrogen – Growth, photosynthesis Phosphorus – photosynthesis, flowering Potassium – build proteins, prevent disease Calcium – Strong cells Magnesium – Photosynthesis Sulfur - build proteins and produce food Soil nutrients
  16. 16. MADE BY : C.ABHIROOP REDDY CLASS : V-C ROLL.NO : 23 SUB.TEACHER : MRS.NEERAJA RANI MADAM

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