flowers the reproductive structures of plants can you remember the seven processes of life?...
TRANSCRIPT
MovementStems and leaves curve
round to face the light.
Light is needed by the leaves to make food.
Plants - Seven Processes of Plants - Seven Processes of LifeLife
Plants - Seven Processes of Life
SensitivityStems curve to face the light.
Roots grow towards water.
Plants - Seven Processes of Life
NutritionPhotosynthesis - the process of turning the
sun’s energy, water and minerals into energy.
Plants - Seven Processes of Life
Excretion
Plant release oxygen. This is a waste product of photosynthesis.
Plants - Seven Processes of Life
Respiration
Plants take in Carbon dioxide (gas), They use this to make food.
Plant Characteristics
• They make their own food–Chloroplasts contain chlorophyll–Chlorophyll absorbs energy from
the sun–Plants use the energy to make
food - glucose (sugar)–Process is called Photosynthesis
Chloroplasts:
Plant Characteristics
• Plants Have a Cuticle
What is a Cuticle?
–A waxy layer that coats the surface of stems, leaves, and other plant parts exposed to the air.
–Keeps plants from drying out.
Plant Characteristics
• Plant Cells have Cell Walls
What is a Cell Wall
– a plant cell is surrounded by a rigid cell wall
– outside of the cell membrane
– helps support and protect the plant
Plant Characteristics
• Plants reproduce either asexually spores or sexually (pollen and egg)
How are Plants Classified?
• There are more than 260,000 species of plants.
• They can be divided into two groups:–Nonvascular Phylum
–Vascular Phylum
How are Plants Classified?
• Nonvascular Plants:– have no special tissue to transport
water and nutrients– depend on diffusion and osmosis to
move material from one part of the plant to another
– They have to be small: mosses, liverworts
Liverwort:
How are Plants Classified?
• Vascular Plants–Have tissues that deliver needed
materials throughout a plant - called vascular tissues.
–Can be almost any size.–Are divided into gymnosperms and
angiosperms
How are Plants Classified?
• Gymnosperms -- “naked seed” non-flowering plants
• Angiosperms -- flowering plants
Vascular Plants
• Have a xylem and phloem– Xylem
• Hard wall cells that transport water and minerals
• Flows Upward– From roots
• Die every year• Rings in a tree
trunk
Vascular Plants
• Phloem– Soft-walled cells that
transport organic nutrients
– Travels downward• Phloes downward!
– This tissue is living and permanent
– Primarily used for food transport
•We know that plants produce flowers which have male and female organs. •We know that seeds are formed when pollen from the male organ fertilises the female organ.
•We can label the parts of a plant and flower.