Structures of Plants
This part of a plant helps keep the plant firmly in the ground.
What is the roots
What is the main function of a plant's roots in a hydroponic system?
To absorb water and nutrients directly from the nutrient solution
The ideal pH range for most plants in a hydroponic system.
What is 5.5 - 6.5?
What part of the seed contains the food supply for the developing plant?
What is the Cotyledon?
Give one example of how seeds are scattered.
Through animal ingestion, squirrel dispersal, seed attachment to people or animals, etc.
This part of the plant is where photosynthesis happens.
What are the leaves
The green pigment found in specialized organelles (leaves).
What is chlorophyll?
True or Fales: plants are producers
True
What structure protects the seed and helps prevent moisture loss?
What is the seed coat?
In a hydroponic tower, why do plants need a growing medium like the rock wool?
Water and food travel up and down this part to get to the leaves and flowers.
What is the stem
What is the first structure to emerge from a germinating seed?
What is the root?
What is the baby plant inside a seed called? We found one inside the lima bean when we disected.
What is an embryo?
What happens if the pH in the water is lower than 5.0?
Nutrients become toxic to the plant.
What 3 things do a plant need to produce its own food?
Water, carbon dioxide and sunlight
What part of the plant is responsible for converting sunlight into energy?
The leaves.
What structure transports water and nutrients in the plant?
Stem
What happens to most plants if the pH is too high?
Nutrients become less available
Seeds in an apple tree are protected by what?
The fruit (or the apple)
Which part of the plant structure is responsible for converting sunlight into energy.
What are the leaves?
Do plants have a vascular system?
Yes (we saw this with the red dye of the celery).
How do plants take in cardon dioxide?
Through the tiny holes in their leaves (caled stomata).
If you are growing a lima bean, do you need to keep the leaves moist or the roots moist for it to survive?
The roots.
When planting, will all seeds germinate?
Not always. This is why we add extra seeds to the rock wool.