-selected channels for water
-increase rate of water transport over simple osmosis
-possibly gated channels
|ring vascular tissue||
-thin primary cell wall
-carry out most of plant's metabolic functions
-often store food
-much of fruit is this type of cell
the only 'gas' hormone
|LIFE CYCLE OF PLANTS||
life cycle in one year
Point where leaves are attached
loss of autmn leaves
specialized plastids containing dense starch grains, that let plants know up from down.
Nutrient-storing tissue that nourishes the developing embryo of a plant
(generative/tube) cell enters the other and divides to form 2 sperm cells
|2/3 of angiosperm species, poppy||
produce macrospores (female spores) (meiosis)
Haploid daughter cells-1survive-eggs-flowering inegaments-tissue surrounds macro
uptake of water by a seed
vascular bundles scattered throughout the ground tissue
-mostly parenchyma cells
shorter, much thicker lignified walls, irregular shape (cell types)
4. leaf system
5. buds/ Nodes
Another name for land plants, recognizing that land plants share the common derived trait of multicellular, dependent embryos.
male gametophyte in seed plants
specialized epidermal cells control opening and closing of stomata
a turning response to a stimulus
floral parts in monocots (amount)
have trachid cells- prim vasc
no sec growth
sporophytes - adults
gameto lacks vasc
need water for sperm
in organisms undergoing alternation of generations, the multicellular haploid form that mitotically produces haploid gametes that unite and grow into the sporophyte generation
angiosperm whose seeds have two cotyledons.
A spore from a heterosporous plant that develops into a female gametophyte bearing archegonia.
|vascular tissue system||
-Xylem & phloem
-Function: transport and support
-continuous throughout the plant
|Auxin (natural IAA)||
Promotes plant growth & phototropism
has pith, ringed with alternating xylem and phloem
the pressure that water molecules exert against the cell wall.
Growth produced by apical meristems, which lengthen stems and roots.
flowering plant that completes a life cycle within one growing season
complex tissue found in vascular plants, meaning that it is composed of more than one cell type. The primary components of vascular tissue are the xylem and phloem. These two tissues transport fluid and nutrients internally.
blocks the movement of waters and minerals between the endodermal cells
Form the branch or lateral shoot
cells that are dead after maturing; aid in structural support and strength
devlopes into xylem and pholem and vascular cambium
long thing and water passes through pits
sieve-tube elemets are alive at functional maturity though they lack organelles, sieve plates are the porous end walls that allow fluid to flow beteen cells along the sieve tube, each sieve-tube element has a companion cell whose nucleus an ribosn serve both cells
The contents of a plant cell exclusive of the cell wall.
connected to each sieve-tube member by opeining call plamodesmata.
soil particles adhering to root hairs and travels through apoplast to root cortex
|Dermal Tissue System||
The outer protective covering of plants.
A type of asexual reproduction in plants that does not involve the formation of a seed
Any of a group of seed-bearing plants whose ovules are not enclosed in an ovary, but are exposed on the surface of sporophylls or similar structures. Each ovule may contain several eggs, all of which may be fertilized and start to develop in a process known as polyembryony.
|Microspores (pollen grains)||
the plant's gametophytes, or sperm cells
chroloplasts worked best at ends of specturm
|BRYOphytes versus TRACHEOphytes||
Bryophytes - mosses and liverworms, lack vascular tissues (stems, roots, leaves)
Tracheophyta - vascular tissues that enable them to thrive on land by facilitating the transport and storage of water and nutrients
in the ovules of seed plants, the opening in the integuments through which the pollen tube usually enters.
The second of two major stages in photosynthesis (following the light reactions), involving atmospheric CO2 fixation and reduction of the fixed carbon into carbohydrate.
Contains 2 sperm that tries to reach the ovule. This is a GAMETOPHYTE generation (n)
embryonic tissue at the tip of a shoot, made up of developing leaves a compact series of nodes and internodes
The most abundant cell type and are present throughout the plant
concentration of growth at the tip of a plant shoot, where a terminal bud partially inhibits axillary bud growth
A plant that uses the Calvin cycle for the initial steps that incorporate CO2 into organic material, forming a three-carbon compound as the first stable intermediate.
A plant organ that is a net consumer or storer of sugar. Growing roots, shoot tips, stems, and fruit
|greater concentration on dark sides||
what Went concluded from his experiments
|xylem, mesophyll, airspace, stomata||
movement of water loss, from xylem to the air (4)
|A type of growth characteristic of most animals and some plant organs, in which growth stops after a certain size is reached.||
determinate growth in plant organs like leaves, thorns, flowers