Plant 1
How many different kinds of plants are there?
About 400,000
What are the two groups plants are divided into when we classify them by structure?
Have roots, stems, and leaves
Do not have roots, stems, or leaves
How do plants with no seeds or fruit reproduce?
Give an example
They produce offsprings from spores
What is the process of a plant making food called?
Photosynthesis
What are the small tubes inside the root that carry water to the stems called?
Veins
Where do leaves get carbon dioxide gas for photosynthesis?
The tiny holes on the bottom of leaves called stomata
What are the 2 types of stems?
Which type of plant has which?
Woody (trees)
Nonwoody (flowers)
Plants with roots, stems, and leaves usually also have _________.
What was an exception provided by the book?
Seeds/fruits
Horsetail
What are the 2 types of roots? Explain
Give an example of each.
Taproot - one large root
Fibrous roots - roots that spread out
What did Van Helmont think was the key ingredient a plant needs to grow?
What did scientist find was the key ingredient 100 years later?
What do we know now?
Water
Carbon dioxide
Sunlight, water, carbon dioxide
What are 2 things a plant must do to use food for energy?
1. Photosynthesis
2. Respiration
What do spores need in order to grow?
Light, nutrients, and water
What are the steps of photosynthesis?
1. Sunlight hits the leaf
2. Chloroplast/chlorophyll collects the light energy
3. Chloroplast (full of energy) is combined with CO2 and H2O to make plant sugar
4. The cells let out oxygen out as a waste product
If a plant has enough water, its ________ stay open. Water escapes. This process is called ___________.
Would a water lily or a desert plant be more likely to do this?
Stomata
Transpiration
Water lily
What are the jobs of a plant's root? (3)
Take up water and nutrients from the ground
Keep plants firmly in the soil
(some) Store food