These open and close stomata, regulating gas flow
guard cells
opening, mainly on bottom of leaf, where gases enter and exit the leaf
stomata
layer responsible for majority of photosynthesis
mesophyll
plural word for stoma
stomata
gas that leaves take in
carbon dioxide
where the plant receives the majority of its energy
sun
type of vascular tissue that transports water and dissolved minerals from roots to leaves
xylem
process by which plants make energy using sunlight, water, and carbon dioxide
photosynthesis
type of vascular cell that transports sugars (food) from leaves to other parts of the plant
phloem
plant stem structure that contains xylem and phloem tissue
vascular bundle
outer layer of cells that protect leaf
epidermis
another name for vein, or collection of cells that transports materials throughout plant
vascular tissue/bundle
color of cuticle and epidermis, so sunlight can pass through
transparent
chemical produced by cloroplasts
chlorophyll
cell organelle responsible for photosynthesis
Chloroplast
waxy coating that prevents water loss
cuticle
color of leaves due to presence of clorophyll
green
layer of loosely packed cells and gas pockets
spongy
gas that leaves give off
oxygen
layer made up of both spongy & palisade cells
mesophyll
!!!!!!know the cross section of a leaf diagram!!!!!!
okay
sepals
surround and protect the essential organ
petals
Surround the male and female flower parts and are there to attract animal pollinators
stamens
The pollen-producing male reproductive organ of a flower, consisting of an anther and filament.
filament
thin stalk that supports the anther
anther
produces male gametes - pollen
pollen grains
each contain 2 sperm nucki when they mature they split open & disperse pollen dust
pistil
The female reproductive part of a flower
stigma (flower)
becomes sticky & moist when mature; receives pollen
style (flower)
Holds the stigma; middle portion of pistil can be long, slender, short, absent
ovary
A flower structure that encloses and protects ovules and seeds as they develop; contains one or more hallow compartment called locules
locules
each contain one or more ovules
ovule
undergo meiosis to form oval (eggs) containing egg nuclei
male reproductive system in a flower
stamen: anther, filament
female reproductive system in a flower
pistil: stigma, style, ovary, ovule
pollen grains
filament structure supports anther, pollen grains land on stigma and germinale
pollen tubes
emerges from germinated pollen grains making passage way from 2 sperm nuclei to enter ovum
monocot
one cotyledon
veins usually parallel
vascular bundles usually complexly arranged
fibrous root system
floral parts usually in multiples of 3
dicot
2 cotyledons
veins usually netlike
vascular bundles usually arranged in ring
taproot usually present
floral parts usually in multiples of four or five
Taproot system
single thick primary root, called the taproot, with smaller secondary roots growing out from the sides. (often dicots)
Fibrous root systems
have many small branching roots, called fibrous roots, but no large primary root.
The huge number of thread-like roots increases the surface area for absorption of water and minerals(often monocots)
What are the 3 primary functions of roots?
absorbing water & minerals 2.anchoring and supporting the plant 3. storing food
4 types of plant tissues
dermal, vascular, ground, meristematic
Dermal tissue in plants
plant's outer protective covering
vascular tissue in plants
Made up of xylem and phloem, it transports fluid and nutrients internally
ground tissue of plants
• Photosynthesis
• Food storage
• Healing and tissue regeneration
and support
meristematic
plant tissue found only in the tips of shoots and roots; responsible for plant growth
know the reproductive structures of flower diagram
okay