I. Why are plants
important?
A. Plants are living
B. Plants provide oxygen
C. Plants feed the world
D. Plants provide clothing and shelter
E. Plants can be used for medicine
F. Plants are beautiful
II. What makes a
plant different from other kingdoms?
A. Kingdom PLANTAE (plants)
1. Multicellular
2. Autotrophs (chloroplasts)
3. Cellulose in cell walls
4 Eucaryotic (true nucleus; DNA
separated by a membrane)
B. The other kingdoms
1. ANIMALIA: i.e., man
a) Motile
b) Heterotrophs
c) No cell walls
2. MYCOTA: i.e., mushrooms, bread molds
a) Heterotrophs
b) Chitin in cell walls
3. PROTISTA (PROTOCTISTA): i.e., algae, slime molds
a) Unicellular
4. MONERA (ARCHAEA and BACTERIA)
a) Prokaryotic (no true nucleus; DNA
floats freely in cell)
III. What are some
structural features of plants?
A. Cellulosic cell walls
B. Chloroplasts
C. Appearance
1. Can include stems, leaves, and roots
2. Some lack true stems, leaves, and
roots
IV. How does a plant
function?
A. Metabolism
1. Photosynthesis
2. Respiration
B. Water and nutrients
1. Xylem and phloem (important in
distinguishing plants from other organisms)
C. Growth and development
1. Hormones
2. Photoperiodism / temperature
3. Circadian rhythm
D. Environment
E. Reproduction
1. Sexual reproduction
a) Monoecious - male & female parts
on same plant
b) Dioecious - male & female parts
on different plants
2. Asexual reproduction
a) Vegetative
b) Sporophytic
V. How are REAL
plants distinguished from other organisms studied in botany?
A. In addition to being eucaryotic,
multicellular, autotrophic, and cellulosic, REAL plants have VASCULAR TISSUE
(xylem and phloem)
B. See flow chart
SUMMARY STATEMENTS
1. Plants are essential to life on
earth
2. Plants are eucaryotic and
multicellular with cellulosic cell walls
3. Plants photosynthesize, respire,
develop, and reproduce
4. Plants have vascular tissue
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