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PLANTS ORGANELLES Endoplasmic Reticulum Cell Wall Cell Wall Rigid structure surrounding the cell. Made of cellulose. Cell Membrane Cell Membrane Allows movement of materials into and out of the cell. Just inside the cell wall. Nucleus Nucleus Found in eukaryotes (multicellular). Houses DNA Cytoplasm Cytoplasm Jelly-like substance where organelles are found. Vacuole Vacuole Found only in plant cells. Stores water and minerals Chloroplast Chloroplast Found only in plant cells Where photosynthesis occurs. Contains chlorophyll Takes in the light energy from the sun to change water and carbon dioxide into glucose and oxygen Mitochondria Mitochondria Produces energy so the cell can carry out functions. Also called the “powerhouse of the cell” Where cellular respiration occurs Ribosomes Ribosomes Package amino acids to make proteins Endoplasmic Reticulum Endoplasmic Reticulum Endoplasmic Reticulum Transport system of proteins and other materials from one part of the cell to another Classification Simple Algae Non-vascular Mosses Liverworts Hornworts 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) Classification (continued) Complex Vascular Ferns Gymnosperms Angiosperms Monocots Dicots 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 Energy (chemical) Carbon Dioxide + Water +