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Cell division/ plant
Quiz on 4/11
| Term | Definition |
|---|---|
| How many types of asexual reproduction? | 5 types 1. Budding 2. Binary Fission 3. Regeneration 4. Spores 5. Vegetative propagation |
| Budding | It starts as a small bump (bud) and eventually breaks off to become a new, independent organism. |
| Binary Fission | a single organism splits into two identical organisms. |
| Regeneration | the process where an organism can grow back a missing part of its body |
| Spores | tiny cells that can grow into new plants or organisms. They are a way for some plants, fungi, and bacteria to reproduce without seeds. |
| Vegetative propagation | new plants grow from parts of the parent plant, like roots, stems, or leaves |
| Why do cells divide? | Reproduction (Asexually) Growth Repair |
| How many stages are in cell division? | 5 stages 1. Interphase 2. Prophase 3. Metaphase 4. Anaphase 5. Telophase |
| What stage occurs before cell division? | Interphase- Chromosomes make a copy of themselves (they double) |
| Prophase | Mitosis starts (the cell begins to divide). The centrioles (or poles) show up and move to opposite sides of the cell. |
| Metaphase | "Chromatids (or pairs of chromosomes) attach to the spindle fibers. The sister chromatids line up in the middle of the cell. |
| Anaphase | Chromatids (or pairs of chromosomes) split up and start moving to opposite sides of the cell |
| Telophase | Two new nuclei form. Chromosomes turn into chromatin (thin threads instead of rods). Mitosis ends |
| Cytokinesis (Not in plants) | The cell membrane moves in to make two daughter cells, each with its own nucleus and the same chromosomes. |
| Why did we use a onion root tip to show cell division? | cells at the tip are always dividing so the root can grow. Since each cell divides on its own, the root tip has cells at different stages of the cell cycle. This makes the root tip a great place to study cell division. |
| What are vascular plants? | Vascular plants have special tubes called vascular tissue to transport materials. These plants have roots, stems, and leaves. |
| Life cycle of a bean (lab) Stage#1/2 | 1.The bean is covered in a plastic bag with a moist paper towel. When water is added it begins germination 2.it swells and the seed bursts open (does not need sunlight yet) |
| Life cycle of a bean (lab) Stage#3/4 | 3.As the roots grow, a stem will also appear. The bean uses the food in the seed to grow. 4.Leaves will grow on the stem and stretch towards the light |
| Embryo (Parts of a bean) | the baby plant inside |
| Cotyledon (Parts of a bean) | holds the food the new plant needs to grow |
| Seed coat (Parts of a bean) | To protect the seed |
| Petals | Petals are the colorful parts of a flower that attract insects |
| Sepals | Their primary function is to protect the developing flower bud before it opens |
| The Stamen | The Male Reproductive Part |
| Anther | sac-like structure at the tip of the stamen that produces pollen |
| Filament | slender stalk that supports the anther |
| Pistil | Female reproductive part |
| Stigma | the sticky or feathery tip of the pistil where the pollen lands |
| Ovaries | The ovary contains ovules, which are like tiny eggs. After fertilization (when pollen reaches the flower), the ovules become seeds. |
Created by:
Longcp23
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