Development structure Flashcards
(31 cards)
What is Aginosperm
Plants that produces flowers and bears seeds in fruits.
What is Gymnosperm
Seed-producing plants
What is the difference between aginosperm and gymnosperm?
How their seeds are developed. The aginosperm develop in the ovaries of flowers and are surrounded by a protective fruit, while gymnosperm seed are usuallyformed in unisexual cones(strobili) and plants lack fruits and flowers.
Flowers can be unisexual means
Female flowers and Male flower
Flowers can be bisexual means
the flowers have male and female parts
What is a monocot
Have one cotyledon
What is a dicot
Have two cotyledon
What is the difference between monocot and dicot
The plants’s life cycle leads each plant to develop vast differences.
What is the first stem in breaking dormancy
Germination
What do you call the embryo that emits hormone?
Gibberllin
What happens after gibberllin
it is diffuses through seeed to trigger the peoduction od digestive enzymes abd strat the development process
What do seeds need to germinate?
Water, Oxygen and Warm Temp.
Maristems
Regions of actively dividing cells
what are the divisions of maristems
Apical maristems, lateral maristems, Intercalary maristems
location of Apical maristems
found in the tips of roots ans shoots
location od lateral maristems
situated in the vascular and cork cambia
location of Intercalary maristems
located at the internodes and leaf bases.
What is an autotrophs
organisms that obtain energy
from sunlight and chemicals to produce their
own food.
What is an heterotrophs
organism that cannot make their own food and obtain their energy from other organism
Classification of organism based on the mode of nutrition
Heterotrops and Autotrophs
Nutrients needed by plants in large amounts
Macronutrients
What are Nitrogen
Can be provided in a form or amonia, it is usually absorbed in the form of nitrate
What is the significance of nitrogen
Needed forproper leaf growth and development
What is potassium
early known plant nutrien, is traditionally added to the soil in the form of wood ash
