Unit 4 Vocabulary Nat.Sci.

1. Photosynthesis: The process by which green plants use sunlight to convert water and carbon dioxide into glucose and oxygen.

2. Chlorophyll: The green pigment in plants that absorbs sunlight for photosynthesis.

3. Pollination: The transfer of pollen from the male part of a flower to the female part, leading to fertilization and seed formation.

4. Fertilization: The union of a male and female reproductive cell, resulting in the formation of a zygote and eventually a new plant.

5. Germination: The process in which a seed sprouts and starts to grow into a new plant.

6. Stamen: The male reproductive part of a flower that produces pollen.

7. Pistil: The female reproductive part of a flower that contains the ovary, style, and stigma.

8. Ovary: The part of the pistil that contains the ovules, which develop into seeds after fertilization.

9. Stigma: The sticky tip of the pistil that captures pollen during pollination.

10. Sepal: The outermost part of a flower that protects the developing bud.

11. Transpiration: The process by which plants release water vapor through their leaves.

12. Xylem: The tissue in plants that transports water and nutrients from the roots to the rest of the plant.

13. Phloem: The tissue in plants that transports sugars and other organic compounds from the leaves to the rest of the plant.

14. Angiosperm: A flowering plant that produces seeds enclosed within a fruit.

15. Gymnosperm: A plant that produces seeds that are not enclosed within a fruit.