Biology #2 plants Flashcards
(43 cards)
What are the main differences between asexual and sexual reproduction?
Asexual reproduction involves 1 parent and produces genetically identical offspring, while sexual reproduction involves 2 parents and results in unique offspring.
What is the main advantage of asexual reproduction?
The main advantage of asexual reproduction is that creation is quick and fast.
What is the main disadvantage of asexual reproduction?
The main disadvantage is that offspring inherit any condition of the parent organism.
What is the main advantage of sexual reproduction?
The main advantage of sexual reproduction is the creation of unique offspring, resulting in diversity of species.
What is the main disadvantage of sexual reproduction?
The main disadvantage is that it requires mating for fertilization, takes a long time, and the embryo must be protected and nurtured during development.
What are the 8 types of asexual reproduction?
- Binary Fission 2. Budding 3. Parthenogenesis 4. Spore Formation 5. Vegetative Reproduction 6. Fragmentation 7. Grafting 8. Plant Tissue Cultures.
What is Binary Fission?
Binary Fission is when a single organism splits into two identical daughter cells, commonly seen in bacteria and amoebas.
What is Budding?
Budding involves a small bud that breaks away after growth, which can lead to the parent organism dying or breaking off.
What is Parthenogenesis?
Parthenogenesis is when unfertilized eggs mature into new organisms, such as in bees where unfertilized eggs become drones.
What is Spore Formation?
Spore Formation involves haploid cells producing offspring that wait for favorable conditions.
What is Vegetative Reproduction?
Vegetative Reproduction occurs without seeds, producing identical offspring through roots or runners, such as in spider plants and potatoes.
What is Fragmentation?
Fragmentation is when new identical individuals arise from a piece of a pre-existing organism, like worms.
What is Grafting?
Grafting involves joining two plants to grow as a single plant without DNA exchange, maintaining their own characteristics.
What are Plant Tissue Cultures?
Plant Tissue Cultures involve placing plant cells in a nutrient-rich container to grow into new individuals.
What are the 4 types of sexual reproduction?
- Conjugation 2. Internal Fertilization 3. External Fertilization 4. Hermaphrodite.
What is Conjugation?
Conjugation is the exchange of DNA between organisms, often occurring in bacteria.
What is Internal Fertilization?
Internal Fertilization occurs inside the female body, as seen in mammals, birds, and reptiles.
What is External Fertilization?
External Fertilization occurs outside the female body, as seen in fish and plants.
What is a Hermaphrodite?
A Hermaphrodite produces both male and female gametes and mates with other individuals of the species.
What is the significance of seed formation?
Seed formation occurs when pollen fertilizes the ovule, creating a zygote that can develop into a new plant under favorable conditions.
What is the role of petals in a flower?
Petals attract pollinators with their colors.
What is the function of the sepal?
The sepal protects the immature flower or reproductive organ.
What is the purpose of the receptacle in a flower?
The receptacle provides stability to the flower, supporting its growth.
What is the role of the pistil in a flower?
The pistil is the female reproductive part, consisting of the stigma, style, ovary, and ovule.
