Plants Pt. 2 Flashcards
(23 cards)
What does the term ‘fertilization’ refer to?
Fertilization is the term used when materials are supplied to the environment around the plant.
How many elements do plants need for normal growth?
Plants need 16 elements for normal growth.
Where are carbon, hydrogen, and oxygen found?
Carbon, hydrogen, and oxygen are found in air and water.
Where are the remaining essential elements for plants found?
The rest are found in the soil.
What are macronutrients?
Macronutrients are used in large quantities.
What are micronutrients?
Micronutrients are used in small quantities.
How are most nutrients absorbed by plants?
Most nutrients are dissolved in water and absorbed by the roots.
What percentage of plant nutrients are absorbed from the soil solution?
98% of these plant nutrients are absorbed from the soil solution.
What must happen for ions to be absorbed by plants?
For ions to be absorbed they must first be dissolved in the soil solution.
What is soil pH?
pH is the measurement of acidity in the soil.
How does soil pH affect plants?
Soil pH greatly affects the chemical reactions and plants’ ability to absorb nutrients.
What is foliar absorption?
Foliar absorption is when some nutrients can be absorbed through the leaves.
What can happen if nutrient levels are too high during foliar absorption?
Too high of the nutrient can burn the leaf.
What must nutrients do to enter plant cells through foliar absorption?
They must be able to pass through the cuticle to enter plant cells.
What are fertilizers?
Fertilizers are supplements of minerals that plants may use to produce their food.
Give examples of popular fertilizers.
Popular examples of fertilizers are urea, potash, and ammonium sulfate.
What are the male and female parts of a plant?
Plants have both male and female parts.
What is the female part of a flower called?
The pistil is the female part and it consists of the style, stigma, and ovary.
What is the male part of a flower called?
The stamen is the male part and it consists of pollen, anther, and the filament.
What is pollination?
Pollination is when a pollen grain from a flower’s anther reaches a flower’s stigma.
What is fertilization in plants?
Fertilization is when a pollen grain travels down the style and combines with the ovary.
What happens during fertilization?
Fertilization happens when the pollen combines with the egg.
What happens during pollination?
Pollination happens when the pollen is moved from the anther to the stigma.
