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BIOL 1001 Study Guide - Spring 2019, Comprehensive Final Exam Notes - Enzyme, Protein, Photosynthesis


Department
Biological Sciences
Course Code
BIOL 1001
Professor
S.Pollock
Study Guide
Final

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BIOL 1001

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Biology 1001 1/15/2014 6:01:00 PM
1. What is biology?
A. Bio= “life”
B. Logy= “the study of
C. Biology is the study of life
2. What is life?
A. the quality that distinguishes a vital functioning being from a dead
one and inorganic compounds
B. We define life with a set of characteristics shared by all living
organisms
C. To be alive, an organism must
i Be composed of cells
Has complex, organized structure
The smallest unit is the cell
ii Maintain homeostasis
Homeostasis= to stay the same
Enables organisms to cope with changes in their
environment
iii Respond to stimuli
External stimuli- light, sound, touch, chemicals, etc
Ex: plants grow towards light
Internal stimuli- temperature, pain, chemicals, etc
Ex: your body can detect low blood sugar
iv Use and convert materials and energy
Nutrients: minerals, oxygen, water, other chemical
building blocks
Energy: almost all life is sustained by energy originally
provided by the sun
Photosynthetic organisms capture energy
Living organisms acquire and use materials and
energy- energy flows while nutrient
v Grow
gro
vi Reproduce
vii Evolve
ii.
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Atoms 1/15/2014 6:01:00 PM
Atoms, Molecules and Life Chapter 2
Coming up in this chapter
What Are Atoms?
How Do Atoms Interact to Form Molecules?
Why is Water So Important to Life?
1. Atoms
B the fundamental structural units of matter and are composed of
three types of particles
i. In the nucleus, there are positively charged protons and
uncharged neutrons.
ii. In orbit around the nucleus are negatively charged particles
called electrons.
C Atoms are electrically neutral because their number of protons
and electrons is equal
D Atomic number- The number of protons in the nucleus of an atom
E atomic mass of an element is the total mass of its protons,
neutrons, and electrons
Atomic Models
2 Elements
A a substance that cannot be broken down by ordinary chemical
reactions. Have unique chemical and physical properties
B At room temperature they can be gasses (ex: hydrogen), liquids
(ex: mercury), or solids (ex: lead)
C There are 92 types of naturally occurring elements
D The atomic number (number of protons) is the defining value for
an element
E All atoms of an element have the same atomic number
i. For example, carbon has six protons, nitrogen has seven
F Diamonds and graphite are both pure carbon, but the arrangements
differ
G These elements compose about 96% of human body weight-
oxygen, carbon, hydrogen & nitrogen
i. These are known as the “building blocks” of life on earth
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