Characteristics of Angiosperms

Characteristics of Angiosperms

• Also known as flowering plants
• Most diverse group of land plants, with over 400,000 species
• Found in almost every habitat on Earth

Reproductive Structures

• Flowers: reproductive structures that produce seeds and fruits
• Contain male reproductive organs (stamens) and female reproductive organs (carpels)
• Flowers can be perfect (containing both male and female organs) or imperfect (containing only one type of organ)

Fruits and Seeds

• Fruits: mature ovaries that contain seeds
• Fruits can be fleshy (e.g. apples) or dry (e.g. beans)
• Seeds: reproductive structures that contain an embryo and endosperm (nutrient-rich tissue)

Leaves and Stems

• Leaves: organs that carry out photosynthesis
• Leaves have veins (xylem and phloem) that transport water, nutrients, and sugars
• Stems: above-ground structures that support leaves and transport water and nutrients

Xylem and Phloem

• Xylem: transports water and minerals from roots to leaves
• Phloem: transports sugars and other organic compounds from leaves to roots and other tissues

Evolutionary Advantages

• Flowers and fruits allow for efficient reproduction and dispersal of seeds
• Development of vessels (xylem and phloem) allows for efficient transport of water and nutrients
• Diverse range of adaptations to different environments

Characteristics of Angiosperms

• Angiosperms are also known as flowering plants.
• They are the most diverse group of land plants, with over 400,000 species.
• Angiosperms are found in almost every habitat on Earth.

Reproductive Structures

• Flowers are the reproductive structures that produce seeds and fruits.
• Flowers contain male reproductive organs (stamens) and female reproductive organs (carpels).
• Flowers can be perfect (containing both male and female organs) or imperfect (containing only one type of organ).

Fruits and Seeds

• Fruits are mature ovaries that contain seeds.
• Fruits can be fleshy (e.g. apples) or dry (e.g. beans).
• Seeds are reproductive structures that contain an embryo and endosperm (nutrient-rich tissue).

Leaves and Stems

• Leaves are organs that carry out photosynthesis.
• Leaves have veins (xylem and phloem) that transport water, nutrients, and sugars.
• Stems are above-ground structures that support leaves and transport water and nutrients.

Xylem and Phloem

• Xylem transports water and minerals from roots to leaves.
• Phloem transports sugars and other organic compounds from leaves to roots and other tissues.

Evolutionary Advantages

• Flowers and fruits allow for efficient reproduction and dispersal of seeds.
• Development of vessels (xylem and phloem) allows for efficient transport of water and nutrients.
• Angiosperms have a diverse range of adaptations to different environments.