[PLS 170C1] - Midterm Exam Guide - Everything you need to know! (35 pages long)

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PLS 170C1
MIDTERM EXAM
STUDY GUIDE
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Thursday, January 12, 2017
Session 1: Introduction
PLANT SCIENCE
Why Study Plants?
Plants:
-constitute >98% of earth’s biomass .
-capture solar energy for all other organisms.
-release oxygen.
-provide essential minerals/nutrients to herbivores.
-productivity improvements are critical to meet the
demands of a growing human population.
-Plants remain largely unknown and uninvestigated for
their use in therapeutic treatments and human
medicine.
-are central to managing ecosystems
Botany:
A division of biology dedicated to the scientific study of
plants including their classification, structure,
physiology, ecology, distribution and economic
importance.
Botany a classical term for the study of plants.
Plant Biology study of the structure, function and
reproduction of plants.
Plant Science knowledge (facts or principles) gained
from a systematic study of plants.
Biology: the study of living things
A living thing:
-Is organized into units called cells
-consists of ordered structures
-must obtain and use energy to survive
-responds to its environment
!1
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Thursday, January 12, 2017
-grows and changes in organized ways (develop)
-reproduces
-uses DNA to transmit genetic information
-evolves and adapt to its environment
The Diversity of Life
-There are an estimated 7-20 million different species
of organisms in the six kingdoms.
-Of these species, we have only identified and named
about 1.6 million species.
Living things classified in 6 kingdoms
Archaebacteria
-primitive bacteria found in harsh environments.
Eubacteria
-bacteria found throughout nature. (in/on human body)
Protista single
-celled organisms found in or around water.
-e.g. protozoa, algae, water molds, and slime molds.
Fungi
-typically filamentous organisms that obtain nutrients
by absorption.
-e.g. molds, yeast, mushrooms, and lichens).
Plantae
-photosynthetic, typically multicellular organisms.
-e.g. mosses, ferns, conifers, and flowering plants.
Animalia
-complex mobile organisms that eat other organisms
for food
!2
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