plants. characteristics of plants multi-cellular non-mobile cell walls are composed of cellulose...
TRANSCRIPT
Characteristics of Plants
• Multi-cellular
• Non-mobile
• Cell walls are composed of cellulose
• Contain chloroplast with chlorophyll
• Photosynthetic
• Autotroph
Phloem Xylem• transport the sugars
and other molecules created by the plant.
• Phloem is always alive.
• the system of tubes and transport cells that circulates water
• Xylem dies each year – producing tree rings
This is the name for the FEMALE part of the flower.
This is the name for the MALE part of the flower.
With a partner, draw and label a flower.
One person labels male parts and the other person labels the female.
Pollination
• Flowering plants use the wind, insects, bats, birds and mammals to transfer pollen from the male (stamen) part of the flower to the female (stigma) part of the flower.
Fertilization
• Pollen grains germinate on the stigma, growing down the style to reach an ovule.
• Fertilized ovules develop into seeds.
• The carpel enlarges to form the flesh of the fruit and to protect the ovary.
Fruit or Veggies?
With a partner, classify the following:
Cucumbers PotatoTomatoes StrawberryCarrots RadishOrange SquashPumpkin Green peppers
Hormones • Auxin – causes cell growth towards the sun
• Cytokinins – cause plants to branch and seeds to sprout
• Gibberellins – cause plants to increase in size
• Ethylene – causes fruits to ripen
Tropisms• Gravitropism – roots
grow down, stems grow up
• Phototropism – growth towards light
• Thigmotropism – response to touch
Others…• Photoperiodism –
plants response to periods of light (day and night)
• Winter Dormancy – plants get ready for the winter (stop photosynthesis)
Plant Adaptations…
In spite of being rooted in the ground, plants need to have strategies that allow them the necessary “skills” to survive.
TRUE or FALSE
After each statement, move to the right side on the room for true or the left side for false.
Ready…