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Plant

plantevolution

Subject: 
Biology
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Biology
Botany
Plant reproduction
plants
Plant Anatomy
reproduction
Plant taxonomy
Embryophyte
Plant
Bryophyte
Non-vascular plant
Alternation of generations
Environment

Bio104 Laboratory ? Student?s Guide John Jay College, C.U.N.Y Lab #6 ? Page 1 Lab #6: Evolution of Land Plants I. Introduction a. Last week, we learned about several types of green algae and explored their evolution from solitary single-celled organisms through colonialism and into multicellularity. Although green algae are protists, green algae and land plants share a common ancestor and have many shared features. Both are Eukaryotes and both have chloroplasts that are strikingly similar. b. However, plants have diverged considerably from algae. The two most striking differences are that plants have evolved life cycles that are very distinct from that of protists, and that nearly

AP Environmental Science - FRQ and MI for Ch.1

Subject: 
Environmental Science
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water
Algae
Biology
Aquatic ecology
Biological oceanography
Fisheries
Fertilizer
Algal bloom
Lawn
Nutrient
Plant
Dishwasher
Environment

Christian Boujaoude August 17, 2014 AP Environmental Science Pd. 10 Daly FRQ Chapter 1 1. a.) A feasible explanation for the algal bloom in the pond could be that there was too much fertilizer applied to the lawn. Some of the run-off from the rain flowed down the lawn and went into the pond. This would then increase the nutrient supply in the pond and resulted in the algal bloom a few weeks later.

Biology - Modern Plants

Subject: 
Biology
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Biology
Botany
Plant reproduction
plants
Plant taxonomy
Plant morphology
reproduction
Plant
Bryophyte
Fern
Sporophyte
Spore
Environment

Modern Plants Bryophytes (mosses) and Relatives Pteridophyta (Ferns) and Relatives Gymnosperms and Relatives Angiosperms and Relatives Examples Mosses, Liverworts, Hornworts Ferns, Psilotum (whisk fern), Lycopodium, Equisetum (horsetails) Conifers, Gingko, cycads Flowering plants, grasses, hardwoods Transport(xylem and phloem) Mostly Nonvascular Vascular Vascular Vascular Life Cycle Gametophyte (N) dominant Sporophyte dominant, small separate Gametophyte Sporophyte dominant Sporophyte dominant Spores or Seeds Spores Spores Seeds Seeds Fertilization Water Water Wind (Pollination) Wind/ animals (Flowers) Dispersal Water/ Wind Spores Water/ Wind Spores Wind Seeds Wind/ animals (Fruits) Seeds

Botany Introclassification

Subject: 
Biology
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Biology
Botany
anatomy
Plant Anatomy
Plant physiology
plants
Tissues
Plant taxonomy
Vascular plant
Plant
Non-vascular plant
Vascular tissue
Environment
Botany; Introclassification

Classification Multicellular Eukaryote Have cell walls made of cellulose Carry out photosynthesis AND respiration Most are autotrophs A few are parasites (live on living organisms) or saprobes (live on dead organisms) Store energy as starch (carbohydrates) Sunlight Water Minerals Gas Exchange (CO2 in: O2 and some CO2 out) Transport of water and nutrients throughout the plant body Remember Photosynthesis: 6H2O + 6CO2 ? C6H12O6 + 6O2 (water + carbon dioxide + sunlight ? glucose + oxygen) Plants life cycles have two alternating phases known as alternation of generations: A diploid (2N) phase known as the sporophyte (spore producing plant). A haploid (N) phase known as the gametophyte (gamete producing plant)

Plant Biology Midterm

Subject: 
Biology
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Biology
Botany
Plant morphology
Plant sexuality
Pollination
Plant Anatomy
Plant taxonomy
Gynoecium
Embryophyte
Flowering plant
Plant
Pollen
health
Plant Biology

Bio 1B, Midterm #2 on Plant Biology 11/4/02 Professor Carlson Student Name:__________________________________________________ 1 Bio 1B, Midterm #2 on Plant Biology, 11/4/2 Professor Carlson Multiple choice question examination 1. Which of the following statements is false? a. Eukaryotes have membrane bound nuclei b. The most primitive eukaryotes are bacteria c. Fungi are more closely related to animals than to plants d. Algae are included within a diverse group of eukaryotes called protists 2. Which of the following questions is false? a. Metabolism by cyanobacteria gave earth its first oxygen atmosphere 1.8 billion years ago b. Currently discussed theory on origin of chloroplast suggests that cyanobacteria-type

Biology 10/12 Notes

Subject: 
Biology
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Biology
Chemistry
Photosynthesis
Photosynthetic pigments
Tetrapyrroles
microbiology
Algae
Chlorophyll
Plant
Biological pigment
Chloroplast
bacteria
Environment
Disaster

Photosynthesis Plants use sun to make glucose Photosynthesisers are base of food chain Too much algae? You got problems Need water Sunlight Nutrients Fertilizer runs into water, increases nutrients, too much algae Too much fish food/waste also does this Dead zone - an area in ocean or lace with scant or little oxygen Increased nutrients Increased algae growth Increased O2 from algae photosynthesis during day At night, respiration decreases O2 Uses up nutrients and die Decomposing bacteria consume/decompose algae Bacteria then blooms Oxygen is decreased even further Anoxic conditions - marine life cannot be supported Organic must have carbon AND hydrogen Chloroplasts - organelles consisting of photosynthetic pigments, enzymes, and other molecules grouped together in membranes

Mosses and Liverworts

Subject: 
Biology
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Biology
Botany
Plant Anatomy
Plant physiology
Tissues
Marchantiophyta
Vascular tissue
Alternation of generations
Plant
Moss
Phloem
Xylem

Mosses and liverworts are traditionally classified together in the Division Bryophyta on the basis of their sharing: •a similar life cycle (alternation of generations) •similar reproductive organs (antheridia and archegonia) •lack of vascular tissue (xylem and phloem) Some 23,000 species of living mosses and liverworts have been identified. These are small, fairly simple, plants usually found in moist locations. •Liverworts have a thin, leathery body that grows flat on moist soil or, in some cases, the surface of still water. The photo (courtesy of William C. Steere and AIBS Bulletin) is of a common liverwort, Ricciocarpus natans. •Mosses have an erect shoot bearing tiny leaflike structures arranged in spirals.

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