All flashcards
Flashcard 1: What is the main reproductive structure of most flowering plants (angiosperms)?
Answer: The flower. Contains all reproductive organs including stamens and pistils.
Flashcard 2: What is the function of petals in a flower’s reproduction?
Answer: Attract pollinators to help pollination occur. Bright colors and scents draw insects and birds for pollen transfer.
Flashcard 3: What is the function of sepals in a flower’s reproduction?
Answer: Protect the flower bud before it opens. Green leaf-like structures shield developing flower parts.
Flashcard 4: What is the anther and what does it produce?
Answer: Anther; it produces pollen. Pollen contains male gametes needed for fertilization.
Flashcard 5: What is the filament in a flower’s stamen?
Answer: The stalk that supports the anther. Positions anther for effective pollen dispersal.
Flashcard 6: What is the pistil (carpel) in a flower?
Answer: The female reproductive part of a flower. Contains stigma, style, and ovary for receiving pollen and producing seeds.
Flashcard 7: What is the stigma and what is its role in reproduction?
Answer: Sticky tip that receives pollen. Its stickiness traps pollen grains for fertilization.
Flashcard 8: What is the style and what is its reproductive role?
Answer: Tube that pollen travels through to reach the ovary. Connects stigma to ovary for pollen tube growth.
Flashcard 9: What is the ovary in a flower and what does it contain?
Answer: Base of pistil; contains ovules. Ovules develop into seeds after fertilization.
Flashcard 10: What is an ovule and what does it become after fertilization?
Answer: Ovule; it becomes a seed. Contains female gamete that unites with sperm.
Flashcard 11: What is pollen and what does it contain?
Answer: Pollen; it contains male sex cells (sperm). Sperm cells fertilize the egg in the ovule.
Flashcard 12: What is pollination in flowering plants?
Answer: Transfer of pollen from anther to stigma. First step before fertilization can occur.
Flashcard 13: Identify the structure that develops into fruit after fertilization: ovary, anther, or stigma.
Answer: Ovary. Mature ovary protects developing seeds.
Flashcard 14: Which flower part directly supports the anther so pollen can be released: filament or style?
Answer: Filament. Holds anther at proper height for pollen release.
Flashcard 15: Identify the correct sequence for pollen’s path: stigma, style, ovary. Which order is correct?
Answer: Stigma → style → ovary. Pollen tube grows through this path to reach egg.
Flashcard 16: In seed plants, what is the main function of seeds in reproduction?
Answer: Protect and disperse the plant embryo. Seeds contain embryo, food supply, and protective coat.
Flashcard 17: In non-flowering seed plants (gymnosperms), what structure produces seeds and pollen?
Answer: Cones (male cones make pollen; female cones make seeds). Gymnosperms use cones instead of flowers for reproduction.
Flashcard 18: Which structure in conifers contains ovules and later bears seeds: male cone or female cone?
Answer: Female cone. Larger, woody cones where seeds develop after pollination.
Flashcard 19: Identify the structure that contains spores and is often found on the underside of fern fronds.
Answer: Sorus (cluster of sporangia). Brown spots on fern leaves where spores develop and are released.
Flashcard 20: Which flower part contains the ovules and later becomes fruit after fertilization?
Answer: Ovary. The swollen base of the pistil that protects developing seeds.
Flashcard 21: Identify the male reproductive part of a flower that produces pollen.
Answer: Stamen. Male organ consisting of anther and filament.
Flashcard 22: What is the stamen in a flower?
Answer: The male reproductive part of a flower. Consists of anther and filament that produce and release pollen.
Flashcard 23: Which flower part produces pollen (the male gametes) in flowering plants?
Answer: Anther. The male reproductive part that produces and releases pollen grains.
Flashcard 24: Identify the plant structure that develops from a fertilized ovule in flowering plants.
Answer: Seed. Contains the embryo, food supply, and protective coat for dispersal.
Flashcard 25: Which plant structure helps seed dispersal by wind, water, or animals in many species?
Answer: Fruit. Evolved to protect seeds and enhance their dispersal range.
Flashcard 26: Identify the plant structure that develops from the ovary after fertilization.
Answer: Fruit. Protects seeds and aids in their dispersal to new locations.
Flashcard 27: Which flower structures often attract pollinators using color and scent?
Answer: Petals. Modified leaves that advertise the flower to pollinators.
Flashcard 28: Which flower structures protect the flower bud before it opens?
Answer: Sepals. Green leaf-like structures that enclose and protect developing flowers.
Flashcard 29: Which structure in conifers produces pollen: male cone or female cone?
Answer: Male cone. Small, papery cones that release pollen into the wind.
Flashcard 30: What is the primary reproductive structure of most flowering plants (angiosperms)?
Answer: The flower. Contains both male (stamens) and female (pistil) reproductive parts.