Plantae Kingdom Flashcards
Draw a cross section of a leaf
Cuticle
- Hydrophobic coating on most leaves
- Reduces water loss via transpiration
Upper epidermis
- Tightly packed cells prevent water loss
- Translucent, allows light to pass through for photosynthesis
Palisade mesophyll
- Tightly packed together; the major site for photosynthesis
- Contains many chloroplasts
Spongy mesophyll
- Irregularly shaped, loosely packed cells
- Contain some chloroplasts
- Space between cells -> intercellular space, allows for gas exchange in and out of the leaf
Vascular bundle
Consists of xylem and phloem (tissues)
Xylem
- Vascular tubes within the plant
- Transports water from the roots to the rest of the plant (upwards flow)
Phloem
- Vascular tubes within the plant
- Transports products of photosynthesis (glucose, etc) from leaves to rest of plant
- Flow goes up and down
Bundle sheath
Network of tightly packed cells surrounding xylem, phloem
Stoma
- Opening allows for gas exchange
- CO2 diffuses in, O2 diffuses out
- Each stoma has two guard cells, which open and close openings as needed and are mostly located on the lower leaf surface to minimize water loss
Draw cross section of a flower
Angiosperm
Plants that produce flowers and bear their seeds in fruits
Petals
Bright-coloured part that attracts bees, insects, and birds
Sepal
Protects flower bud as it develops
Stamen
Male reproductive organ; consists of anther, filament
Anther
Produces and stores pollen
Filament
Supports anther
Pistil
Innermost part, female reproductive organ
- Consists of stigma, style, ovary, and ovule
Stigma
Helps collect pollen
Style
Assists w/fertilization; location where pollen tubes travel to deliver sperm cells to the egg
Ovary
Prepares ovules for fertilization, protects developing zygotes, develop into a seed-bearing fruit
Ovule
Houses the egg cells, receives pollen from another angiosperm
Pedicel
Supports an individual flower/fruit, transports nutrients and water
Drawing of typical plant cell
