Parts of a plant.
What is the flower?
The reproductive part of a plant
First stage of life for seeded or flowering plants.
Seed
Spermatophytes are also known as....
Flowering or seeded plants
A seed needs this to germinate. air, water and ________ ___________ ________________. (hint the answer is three words)
the right temperature
Asexual reproduction in plants can be carried out through bud formation, _______________ or spores
fragmentation
This is where the plants produce organic matter
The leaves and green stems
It protects the seed and the developing plant inside the seed.
Seed Coat
Name 3 features that appear in Gymnosperms
No fruits, mostly evergreen, unisexual flowers, woody stems (trees or bushes), anemophilous pollination, incomplete flowers
A plant needs minerals and ______ from the soil, __________ from the air and ___________ to survive.
water/ CO2/ sunlight
A typical complete flower has the following parts:
the calyx with sepals,
the corolla with petals,
the androecium with stamens
the pistil, carpel or gynoecium with the stigma, style and ovary
Roots functions
To hold the plant tightly in the ground and take in water and minerals from the soil.
The parts inside each angiosperm seed that contains stored food.
The endosperm and cotyledons
Name 3 characteristics of Angiosperms
Fruits, striking coloured flowers, unisexual and hermaphrodite flowers, herbs/bushes/trees, very common the entomophilous pollination...
Seedless plants are ___________ and __________.
They have ______________ that produce and contain the __________________
sporangia/ spores
Describe how water and nutrients travel from the soil to the parts of the plant
The roots absorb the water and nutrients from the soil and sends it to the stem. The stem absorbs them through little tubes and sends it to the leaves of the plant.
Stem functions
To hold up the leaves and the flowers. Also to carry nutrients and water from the roots and sugar (glucose) from the leaves to the rest of the plan
4 types of pollination
self-pollination
cross-pollination
anemophilous pollination
entomophilus pollination
Name 4 Gymnosperms
Cedar, juniper, pine tree, thuja
Main function of the spines on a prickly cactus is to ________ __________ ___________.
protect the plant
Once the water and minerals reach the leaves what do the leaves do?
The leaves perform photosynthesis: using the energy from the sun to produce organic matter: the sugar for the plant
Difference between xylem sap and phloem sap
Xylem sap: water and mineral salts
Phloem sap: water and organic matter (glucose) produced thanks to the photosynthesis
How seeds are dispersed.
By propulsion, by animals, by wind and by water
Name 5 Angiosperms: 2 monocots and 3 dicots
monocots: posidonia, wheat, rye, barley, iris...
dicots: daisy, almond tree, cauliflower...
When a plant like the cactus grows spines to protect itself, the plant is __________ to its environment.
adapting
Differentiate tropisms and nastic movements in plants
Tropisms can be positive or negative growth responses, to different stimuli: light, gravity, water or contact
Nastic movements are temporary, quick and reversible responses to light or to contact