MIDTERMS LAB Flashcards
Thin, flattered organ borne above the ground and specialized for photosynthesis.
LEAF
A masa noun that refers to the cluster of leaves as a feature of plant.
FOLIAGE
Morphology of leaf, examine carefully the variation of the leaf according to;
TYPE
VENATION
PHYLLOTAXY
MARGIN
Structural components of a plant based on the attachments of lamina in the petiole.
TYPE
Arrangement of leaves on an axis of stem.
PHYLLOTAXY
Arrangement of veins in a leaf providing physical support and water/nutrient transport in the leaf.
VENATION
Arrangement of the edges of the leaf.
MARGIN
TYPES
•Simple
•Compound
The leaf may be lobed or divided, but does not form distinct leaflets.
SIMPLE
Separated into its own distinct leaflets, each with its own small petiole.
COMPOUND
Leaf arrangement or PHYLLOTAXY
Alternate
Opposite
Whorled
One leaf grows from each node
ALTERNATE
Three or more leaves grow per node
WHORLED
Two leaves grow per node
OPPOSITE
Venations
Pinnate
Palmate
Reticulate
3 Main Veins
Parallel
A leaf venation wherein leaves are diverge from the midvein towards the leaf margin
PINNATE
A leaf venation wherein veins form a web-like structure
RETICULATE
A venation of leaf wherein veins radiate from a single point at the base of the leaf
PALMATE
Three distinct and prominent veins from one common point at the base of the leaf
3 MAIN VEINS
Parallel to each other through the leaf and starts from the base and extends till the tips
PARALLEL
MARGINS
ENTIRE
DENTATE
SERRATE
CRENATE
LOBED
PARTED
An experiment that allows us to see the colorful pigments that leaves have hidden inside them.
LEAF CHROMATOGRAPHY
The green leaf color which helps plants absorb the yellow and blue wavelengths of light. It is the main pigment used for photosynthesis, or harvesting energy from sunlight.
CHLOROPHYLL
A plant’s loss of water, mainly through the stomata of leaves.
TRANSPIRATION
One of the two main structural axes of a vascular plant. It is normally divided into nodes and internodes. It has thin pipes to carry water around the plant.
STEM
It holds buds which grow into one or more leaves, conifer cones, roots, other stems, or flowers.
NODE
Distance one node from each other.
INTERNODE
Horizontal stems that grow below the ground and have long to short internodes.
RHIZOMES
They store food; large bulbs surrounded by numerous fleshy leaves with small stem at lower end.
BULBS
Irises, some grasses fern
RHIZOMES
Onion, lilies, hyacinth, tulips
BULBS
Resemble bulbs but composed almost entirely of stem tissue, with papery leaves.
CORMS
Swollen, fleshy, underground stem
TUBERS
Produced beneath surface of the ground and tend to grow in different directions.
STOLONS
Horizontal stems that grow above ground and have long internodes.
RUNNERS
Flattened, leaf-like stems
CLADOPHYLLS