Homework for exam 1 Chapter
1, 6, 2
Use this as a study guide for exam 1.
Exam 1: Question Breakdown
Chapter Questions Topics
1-Intro 9 Properties of life, levels of
life, emergent properties, domains of life, evolution
6-Cells 25 Cell size, cell organelles
(structure, function, identification), comparison of plant, animal, bacterial
cells, intercellular junctions
2-Chemistry 9 Atoms, molecules, protons,
neutrons, electrons, valence shells, covalent and ionic bonding
Lab 1 5 Metric conversions and scientific
notation
Lab 2 2 Use of the microscope and bacteria
Chapter 1: Themes of biology
1. Explain
the following themes in biology:
a. New
properties emerge at each level of the biological hierarchy (as you go from
small to large). See fig. 1.3
b. Structure
and function are correlated at all levels of the biological hierarchy.
c. The cell
is the basic unit of life. See fig. 1.4.
d. The
continuity of life depends on heritable information in the form of DNA. See
Fig. 1.6
e. Evolution
accounts for the unity and diversity of life. Fig. 1.12, 1.13, 1.14
2. Levels of
life (figure 1.3): Life can be studied
at the level of the entire biosphere down to molecules. List the levels of life from largest to
smallest and give an example representative of each level.
Chapter 6: Cells
1. List the
differences between prokaryotic and eukaryotic cells in terms of:
a. Size
b. Whether
they contain a nucleus (DNA enclosed in a membrane)
c. Whether they contain membrane-bound organelles
2. List 2
differences between plant and animal cells.
3. Locate
the following structures (fig. 6.8,6.9) inside eukaryotic cells and know their
functions (p.122).
Structure Function
Nucleus
Rough endoplasmic reticulum
Structure Function
Smooth endoplasmic reticulum
Golgi apparatus
Plasma membrane
Lysosome
Mitochondria
Chloroplast
Cytoskeleton
Ribosomes
4. How would
a protein being made for export travel through the endomembrane system (see fig
7.9)?
5. List 3
intercellular junctions in animals and their function (fig. 6.30)
6. What is
the difference between an organ and an organelle?
7. What is
the difference between a nucleus and a nucleolus?
Chapter 2: Chemistry
1. What is
an element?
2. What is
a compound?
3. Do
compounds have the same physical and chemical properties as the elements that
make them up? (see fig. 2.2).
4. What is
an atom?
5. Know the
charge, mass, location of the 3 subatomic particles that make up an atom.
Particle Name Charge Mass Location
Proton
Neutron
Electron
6. What is a
valence shell? Fig. 2.7
7. What
makes an atom chemically reactive?
8. How do
electrons form covalent bonds? Fig 2.9
9. What is a
molecule?
10. In fig.
2.10 is each substance:
a. An atom
or a molecule?
b. An
element or a compound?
11. How do
electrons form ionic bonds? Fig. 2.12
12. What is a
chemical reaction? Concept 2.4.
Labs
Lab 1:
Metric system: Metric conversions
Convert 45.7 nl= ________ml
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Scientific Notation
63,428=6.3428×10?
0.00743=7.43×10?
Lab 2:
Bacteria:
1. List 2
substances bacteria need to grow.
2. Where
would you find bacteria?
3. What do
we mean by saying something is sterile?
Microscopes:
1. Locate
the lens eyepiece and the objective lens.
If the eyepiece magnification is 10x and the objective lens 4x, what is
the total magnification?
2. Always
focus by starting with the __________objective lens. When you go to the next power, the secret of
microscopy is that you should only need to adjust the __________ focus.
