Unit A | Topic 3 | Reproduction Flashcards
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Definition of:
Asexual reproduction
A form of reproduction where there’s only one parent involved (offspring are identical to the parent)
Definition of:
Sexual reproduction
A form of reproduction where there’s two parents involved
Definition of:
Binary fission (in asexual reproduction)
A form of asexual reproduction where one cell splits into two identical offspring
Definition of:
Spores (in asexual reproduction)
Millions of tiny “seeds” are dispersed into the air, some will find good soil to grow in and start developing
Definition of:
Budding (in asexual reproduction)
Parent produces a small, identical offspring attached to itself, the offspring can stay connected or detached
Definition of:
Vegetative Reproduction (in asexual reproduction)
Consist of:
- Runners
> stems that grow horizontally from the plant that spread to grow more of the plant
- Tubers
> root-like structures that can be used for asexual reproduction
What is the name of sex cells required for sexual reproduction?
Gametes
Name of:
Male gametes
Sperm
Name of:
Female gametes
eggs (ovum)
Definition of:
Fertilization (in sexual reproduction)
The union of two gametes, one male, one female
“Female” parts of a plant
- Stigma
- Style
- Ovary
- Ovule
“Male” parts of a plant
- Pollen
- Anther
- filament
Process of plant growth + reproduction
- Germination
> seed becomes plant - Growth
> structure developed - Pollination
> pollen is carried to male part of plant
Where can male gametes be found in a plant
In pollen, which is stored in the stamen
Definition of:
Zygote
The cell created when two gametes join (in sexual reproduction)
Definition of:
Mitosis
Cell division,
The original parent splits into two identical offspring
Advantages of Asexual reproduction
- Produces offspring at a much faster rate than sexual reproduction
- Only needs one parent
Disadvantages of Asexual reproduction
- No diversity
> If something new crosses their path, say a new disease, the entire population could be wiped out
Advantages for Sexual reproduction
- In some cases, only the strongest can reproduce and pass their traits down to the next generation
- Offers protection for growing embryos
Definition of:
Bacterial conjugation
One bacteria transfers its DNA to another
Definition of:
External Fertilization
Occurs when organisms fertilize their eggs outside of the female parents womb
Definition of:
Internal Fertilization
Occurs when organisms fertilize their eggs inside of the females parents womb
Definition of:
Self pollination
When pollination occurs within a singular flower or a different flower of the same plant
Definition of:
Cross pollination
When the pollen from one plant is carried to another plant
