Thursday 11/06/2014
STANDARD: 3.1.7.A1. Describe the similarities and differences of physical
characteristics in diverse organisms. 3.1.6.A8. SCALE Explain why the details of most
cells are visible only through a microscope. 3.1.7.A5. Explain how the cell is the basic
structural and functional unit of living things. 3.1.7.A6. Identify the levels of organization
from cell to organism.
OBJECTIVE: To be able to describe the characteristics of Archea, Bacteria, and Virus and
explain how they reproduce and replicate.
MATERIALS: Fusion Answers p. 86-91 Voc. Words Conjugation, Transduction,
Transformation, Endospore
PROCESS:
YOU DO: Copy HW Unit 2 Lesson 2 Protists and Fungi Voc: gametes, haploid, zygote diploid,
autotroph, heterotroph, mitosis, meiosis. Lytic Fusion p. 92-95
I DO explain that we will be Complete an Access Prior Knowledge check list For Voc. Words of
the next section, Hand out Access worksheet, Read Directions, provide clarity of directions
YOU DO Complete worksheet and put into in bin 10 minutes maximum
WE DO Review Answers Worksheets p. 86-91
REVIEW NEW VOC.
TITLE THESE WORDS “THREE WAYS BACTERIA GET NEW GENETIC MATERIAL OR GENETIC
VARIATION”
1 Conjugation – EXAMPLE-BACTERIA USE IT…The temporary joining of two cells when one cell
shares DNA via its plasmid (a smaller bit that is less than a chromosome of DNA) and then the
cells split. The cell with the plasmid has genetic variation since it is now different than if the cell
just did binary fission to make two new identical cells
2 Transformation-taking up DNA from the environment
3 Transduction-EXAMPLE Virus to Bacteria so it is different from Conjugation…It is when the
virus injects its single strand DNA or rNA into the bacteria.
Endospore- Endospores have thick protective covers so when bacteria form endospores that
have 3 parts the thick covering, the DNA, and cytoplasm; they can use the endospore to
survive harsh environments until conditions improve. In improved conditions the cover of
the endospore breaks down and the bacteria becomes active again.
YOU DO Turn to page 86 Fusion
WE DO Review Answers p. 86Page 86
15 Viruses are not composed of either a prokaryotic or eukaryotic cell since they do not
have complete DNA or rNA. Viruses do not grow on their own and it is not known if
viruses eliminate gas, viruses do not respond to stimuli, or reproduce on their own
because they invade a host cell and take the DNA or rNA of the host cell over to force it
to replicate viral pattern. Viruses do not eliminate waste, need water (if they are not in
water).
Page 87
16 The flu of 1918 -1919 was more deadly than other strains of flu and killed 50 million
people.
17 The flu of 1918-1919 and the flu in 2009 were both pandemics that came from the
variation in the Influenza A or H1N1 virus, but the 2009 outbreak was less severe and
better controlled.
18 A flu today spreads more easily and in a broader range due to travel, but modern
vaccines and disease prevention makes it easier to fight a flu.
Page 88
19 Viruses generally cannot be spread from Kingdom to Kingdom so the cold virus probably
can’t be spread to plants.
Page 89
20 A: virus B: host cell C: new viruses
21 Viruses do not reproduce because a reproduction is a newly produced organism from
the parent organism. Viruses cannot reproduce without a host supplying DNA or rNA.
Page 90
22 more
23 copies of
24 release energy
25 Bacteria use asexual reproduction called binary fission which is a form of mitosis where
the cell duplicates its own genetic material (DNA) and then splits into two identical cells.
Viruses use invasion of a host cell to force the host cell to replication the pattern of the
virus in the lytic cycle.
Page 91
1 Virus
2 binary fission
3 host
4 Prokaryotic no nucleus or membrane bound organelles, most are single celled (Monera
Bacteria). Eukaryotic nucleus, membrane bound organelles, can be single cells (Protist) or
multicellular (Fungi, Plant, Animal)
5 Archea are prokaryotic organisms that survive extreme environments and are chemically
different from bacteria.
6C
7 The cell walls of Archaea are different from bacteria.
8 The process is binary fission where a cell will duplicates it DNA and then split to form 2
identical cells.
Eight individual cells would exist.
9 Bacteria can be killed by heating to high temperatures.