Asexual and Sexual Reproduction in Plants - Jennifer C
Curriculum Expectations:
F2.1 Use appropriate terminology related to plants, including, but not limited to: mesophyll, palisade, aerenchyma, epidermal tissue, stomata, root hair, pistil, stamen, venation, auxin, and gibberellin
F2.4 Investigate various techniques of plant propagation
F3.3 Explain the reproductive mechanisms of plants in natural reproduction and artificial propagation
Learning Goals:
Students will:
1. Use appropriate terminology related to asexual and sexual reproduction in plants
2. Name the parts of the plants that are involved in the reproduction of plants
3. Compare and contrast different seed adapataions
4. Sequence the process of reproduction in plants
5. Identify the different structures and parts in a flower and describe the functions of each part
6. Identify the different structures and functions of the parts in a seed
F2.1 Use appropriate terminology related to plants, including, but not limited to: mesophyll, palisade, aerenchyma, epidermal tissue, stomata, root hair, pistil, stamen, venation, auxin, and gibberellin
F2.4 Investigate various techniques of plant propagation
F3.3 Explain the reproductive mechanisms of plants in natural reproduction and artificial propagation
Learning Goals:
Students will:
1. Use appropriate terminology related to asexual and sexual reproduction in plants
2. Name the parts of the plants that are involved in the reproduction of plants
3. Compare and contrast different seed adapataions
4. Sequence the process of reproduction in plants
5. Identify the different structures and parts in a flower and describe the functions of each part
6. Identify the different structures and functions of the parts in a seed
Sexual Reproduction in Plants OVERVIEW
Two types of reproduction in plants:
Sexual Reproduction: process that involves two parent plants to form a new organism which differs from both parents.
Asexual Reproduction: process that involves only one parent plant and produces offspring identical to the parent
plant.
*role of flower parts:
- ensure successful pollination and fertilization
- also responsible for protecting and adequately distributing the seeds
Sexual Reproduction: process that involves two parent plants to form a new organism which differs from both parents.
Asexual Reproduction: process that involves only one parent plant and produces offspring identical to the parent
plant.
*role of flower parts:
- ensure successful pollination and fertilization
- also responsible for protecting and adequately distributing the seeds
Sexual Reproduction: Life Cycle
All flowering plants have similar life cycles. The 4 main stages of a plant's life cycle are:
- consist of an embryo (-> forms root and shoot structure), tissue to provide nutrient for the embryo (endosperm), and a protective coat (seed coat) - two types of seeds *monocot: single seed leaf (cotyledon) develops ex.corn *dicot: two seed leaves form ex.garden bean The Structure of a Seed Activity Refer to page 19 and 20 of this package. Other activities included in this package will also be useful in class.
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Sexual Reproduction: Plant Development
Sexual Rerproduction: Fertilization
Sexual Reproduction: Flowers
- Anther: knob at top of stalk
- Style: stalk down which pollen tube grow - Ovary: contains the ovule (egg cell) The Structure of Flowers Activity The activity will be more beneficial if different flowers can be prepared for students to observe.
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Sexual Reproduction: Fruits
ingestion of fruit - Water: seed enclosed in waxy, waterproof coating ex. coconut, waterlilies - Wind: fluffy, parachute like structures attached to seeds ex. dandelions, orchid, puppy - Exploding pods: ex. Witch hazel, wisteria |
Asexual Reproduction in Plants OVERVIEW
Asexual Reproduction: When and Why?
- Plants do not naturally reproduce asexually
- Plants reproduce asexually when there are no partners nearby or when they are damaged
- The main advantage of sexual reproduction is that the best traits of both partners can be used in the new organism (offspring)
- Vegetative propagation is the process of growing new plants from plant parts
- 5 plant parts used for vegetative propagation: bulbs, runners, stem cuttings, roots, leaves
- Bulbs are underground stems
- Bulbs are big, round buds made of a stem and special types of leaves
- Bulbs are not connected to the parent
- Examples: onion, tulip, iris
Asexual Reproduction: Runners
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Asexual Reproduction: Roots
Asexual Reproduction: Leaves
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Online Gizmo Activities:
Click on the links below to be directed to the Gizmo pages.
Pollination: Flower to Fruit
Seed Germination
Online Video Resources:
Click on the links below to be directed to the videos.
A Plant's-Eye View -Michael Pollan
- A TED-Ed video, introductory to plants.
Plant Reproduction
- Good introduction / summary video of plant reproduction
Online Resource:
Plant Reproduction
- Whole overview of plant reproduction + assessment website.
Assessments:
Click on the links below to be directed to the assessments.
Some assessments are part of the Gizmo activity to check for understanding.
Plant Reproduction
- Online quiz produced by McGraw-Hill Ryerson on Plant Reproduction
Plant Reproduction and Development Test
- Example test questions that can be used to be part of the test.
Some Activities / Assessments that can be done according to different learning styles and using kinesthetics:
Click on the links below to be directed to the Gizmo pages.
Pollination: Flower to Fruit
Seed Germination
Online Video Resources:
Click on the links below to be directed to the videos.
A Plant's-Eye View -Michael Pollan
- A TED-Ed video, introductory to plants.
Plant Reproduction
- Good introduction / summary video of plant reproduction
Online Resource:
Plant Reproduction
- Whole overview of plant reproduction + assessment website.
Assessments:
Click on the links below to be directed to the assessments.
Some assessments are part of the Gizmo activity to check for understanding.
Plant Reproduction
- Online quiz produced by McGraw-Hill Ryerson on Plant Reproduction
Plant Reproduction and Development Test
- Example test questions that can be used to be part of the test.
Some Activities / Assessments that can be done according to different learning styles and using kinesthetics:
07mar6kinesthetics.pdf | |
File Size: | 53 kb |
File Type: |
binder1.pdf | |
File Size: | 306 kb |
File Type: |
Final Project in Plant Reproduction
- Following file introduces the final project that students would do in plant reproduction, each summarizing a reproductive process and seed dispersal modes of different plants. Evaluation checklist also attached,
- Following file introduces the final project that students would do in plant reproduction, each summarizing a reproductive process and seed dispersal modes of different plants. Evaluation checklist also attached,
final_project.docx | |
File Size: | 16 kb |
File Type: | docx |
Glossary:
Dormant
Spermatophytes Gymnospersm Angiosperms Plumule Radicle Seed coat Peduncle Stigma Ovary Monocot Dicot Cotyledon Endosperm Anther Filament Petal Calyx Sepal Ovule |
in a state of minimal metabolic activity with cessation of growth, either as a reaction to adverse conditions or as part of an organism's normal annual rhythm
a primary division or group of plants comprising those that bear seeds a vascular plant having seeds that are not enclosed in an ovary; a conifer or cycad. plant having its seeds enclosed in an ovary; a flowering plant. the bud of the ascending axis of a plant while still in the embryo the lower part of the axis of an embryo; the primary root the outer integument of a seed. a stalk supporting an inflorescence the terminal portion of the gynoecium that has no epidermis and is meant to receive pollen. ductless gland of the female in which the ova (femalereproductive cells) are produced a group of floweirng plants whose seed typically has one embryonic leaf or cotyledon a group of flowering plants whose seed typically has two embryonic leaves or cotyledons a leaf of the embryo of a seed a tissue that is found on the inside of a seed that surrounds the young plant embryo and provides it with a source of nutrition until it can grow roots and leaves and begin supporting itself pollen-bearing structure of the stamen of a flower, usually borne on a slender stalk filamenta a long chain of cells, part of a stamen, the male part of a flowerone of the four basic parts of a flower, next innermost organ from the sepal the sepals of a flower a modified leaf, part of the outermost of the four groups of flower parts structure that gives rise to and contains the female reproductive cells. |
References
LearnThings Ltd. ( ). Plant Reproduction. Retrieved from http://www.ngfl-cymru.org.uk/vtc/plant_repro/eng/Introduction/activity2pop.htm
Glencoe Science. ( ). Chapter Resources: Plant Reprouction. Retrieved from Chttp://jhs.schoolwires.net/217610323113843730/lib/217610323113843730/_files/Plant_Reproduction.pdf
Nelson. (2011). Biology 11. Nelson Education.
TeachersDomain. (2012). Reproduction. Retrieved from http://www.teachersdomain.org/resource/tdc02.sci.life.repro.lp_reproduce/
Steane, R. ( ). Two Methods of Reproduction. Retrieved from http://www.biotopics.co.uk/genes1/asexual_and_sexual_reproduction.html
Glencoe Science. ( ). Chapter Resources: Plant Reprouction. Retrieved from Chttp://jhs.schoolwires.net/217610323113843730/lib/217610323113843730/_files/Plant_Reproduction.pdf
Nelson. (2011). Biology 11. Nelson Education.
TeachersDomain. (2012). Reproduction. Retrieved from http://www.teachersdomain.org/resource/tdc02.sci.life.repro.lp_reproduce/
Steane, R. ( ). Two Methods of Reproduction. Retrieved from http://www.biotopics.co.uk/genes1/asexual_and_sexual_reproduction.html