Photosynthesis
Parts of a Seed
Parts of a Flower
Plant Parts and Life Cycle
Plant Tropisms
100
What three things are needed for photosynthesis?
Carbon dioxide (CO₂), Water (H₂O), Sunlight
100
What are the three parts that make up the embryo?
Cotyledon, Hypocotyl, Radicle
100
Where is pollen made in a flower?
In the anther.
100
What is pollination?
The transfer of pollen from the anther to the stigma.
100
What is a tropism?
A growth response of a plant toward or away from a stimulus.
200
What are the two products of photosynthesis?
Sugars (C₆H₁₂O₆) and Oxygen (O₂)
200
What protective layer surrounds a seed?
Seed coat.
200
What protects the developing flower?
Sepals
200
Define the difference between self-pollination and cross-pollination.
Self-pollination occurs within the same flower, while cross-pollination occurs between two different flowers.
200
What is geotropism?
A plant's growth response to gravity.
300
How do plants get water?
Through the osmosis of water to their roots from the soil.
300
What is the food source in a seed called?
Cotyledon
300
Where are the egg cells found in a flower?
Ovary
300
What do all plants start as?
Seeds
300
Define thigmotropism.
A plant's growth response to touch.
400
What is the role of chlorophyll in photosynthesis?
Chlorophyll absorbs sunlight, which is necessary for photosynthesis.
400
Describe the process of dissection in relation to seeds.
Dissection is the process of opening a seed to view its internal structures.
400
Where does pollen land during pollination?
Stigma
400
What is germination?
The process by which a seed develops into a new plant.
400
What is hydrotropism?
A plant's growth response to water.
500
Explain why photosynthesis is important for both plants and animals.
It produces oxygen needed for respiration and sugars that serve as energy sources for plants and animals.
500
How does the structure of a seed aid in its dispersal?
The seed coat protects the seed; some seeds have adaptations like wings or fleshy fruits to help with dispersal by wind or animals.
500
Name the three parts of the pistil.
Stigma, style, ovary
500
What part of the flower holds egg cells?
Ovary
500
What type of tropism is this?
hydrotropism