Simple Algae- simple plants with no roots, stems, or leaves 3 groups of algae Chlorphyta: green algae Phaeophyta: brown algae Rhodophyta: red algae
Non-Vascular Plants Plants have leaves and stems, but no real roots. Do not conduct water and nutrients. Classification of plants that mosses, hornworts, and liverworts is generally referred to as bryophyta.
Moss Small flowerless plant that grows in damp locations Reproduce via spores, not seeds Simple leaves attached to a differentiated stem.
Liverwort Very similar to moss. Simple rootless plants Lack of differentiated stem Single-celled rhizoids (roots)
Vascular Plants Transport materials (food, water, minerals) through vascular tissue. Have roots.
Ferns Lack flowers and seeds (have spores) Have fronds which are large, divided leaves
Gymnosperms Seed producing Also known as conifers Produce cones Have “male” and “female” parts that produce pollen and ovules, respectively.
Angiosperms Seed producing Also known as flower-bearing Produce fruit that contain the seeds Two types of angiosperms: monocots and dicots Based on the number of cotyledons – part of the seed that stores food
Monocots Seeds have one cotelydon Leaves with parallel veins Flower parts in threes Vascular bundles are throughout stem’s tissue
Dicots Seeds have two cotyledons. Flower parts in fours or fives Leaves with netlike veins Vascular bundle arranged in a ring
Plant Reproduction Common Parts (neither male nor female) Petals: attract pollinators Sepals: protect the bud Sexual organs Male Female
Male parts Produce the “sperm” Stamen: Consists of anther held up by a filament. This is where the pollen is produced (in the anther).
Female Parts Produce the “eggs” Pistil: Contains three parts, the stigma, style, and ovary Stigma- sticky top to ensure that pollen sticks to it Style- the middle section Ovary- where eggs are produced
Photosynthesis and Cellular Respiration Photosynthesis- A process by which plants convert sunlight, water, and carbon dioxide into food energy (glucose), oxygen, and water Plants use carbon dioxide from animals The chloroplasts change the O2 and sugars (food) into CO2, H2O, and ATP (energy) via the chlorophyll.
Respiration Respiration-A process by which plants convert glucose and oxygen into energy (ATP), carbon dioxide, and water
What do you notice about the two? They are opposite of each other! Equation 1: Water + Carbon Dioxide+ Energy (sunlight) Glucose + Oxygen Equation 2: Glucose + Oxygen Carbon Dioxide + Water + Energy (chemical)