Slide 1EOC Biology: Molecular and Cellular Biology
What could happen in an experiment to recycle step 8 back to step
2? What precautions should be taken when using the internet for
research (step 3)? What are the 2 basic types of variables (+ the
controls, of course) that must be determined before beginning
experimentation? What is an effective method for displaying data
before attempting to analyze results?
Let’s start with WATER- a molecule necessary and complementary to
life.
Within the water molecule the 2- hydrogen to oxygen- bonds are
polar covalent; however, between water molecules, the bonds are
hydrogen bonds. From these bonds emerge the special properties of
water….
3. What would happen to fresh water ponds if ice were more dense
than water?
4. What are the variables represented here – ‘X’ and ‘Y’? Examine
the data and make a general statement relating the variables to
each other.
6. How much more acidic is a pH of 3 than a pH of 5? Write the
concentration of H ions for a pH of 6?
Examine the graph and comment on the energy of reactants versus
products. Examine for the difference in Activation Energy required
by the two reactions- catalyzed and uncatalyzed.
Optimum pH for amylase activity is ? Optimum pH for pepsin activity
is ? Predict activity for amylase at pH 3?
Which enzyme is active at the highest temperature? Which enzymes
are most alike in reactivity? Why can you say this?
10. This is a phospholipid molecule. Which area is hydrophilic? In
terms of its role in the cell membrane, which area would be found
inside the membrane? Which area would face the inside of the cell?
facing outside of the cell membrane?
Which is involved in genetic storage and information transfer?
Which is a reactant of cellular respiration? Which molecule
resembles a component of ADP/ATP? Which molecule contains the 4
major atoms found in protein?
A.
B.
C.
11.
Macromolecules, monomeric units and functions:
Compare the 2 microscopes as to: 1) can living cells be observed?
2) which can provide the greater magnification? 3)which can reveal
the greater detail of the specimen? 4) what are the 2 basic types
of the electron microscope-Hint…think, specimens can be thin
sections or entire specimens? How else can you compare them? Are
there any other interesting microscopes?
Just what distinguishes eukaryotic cells from the prokaryotes? What
distinguishes the eukaryotic plant cell from the animal cell?
Can you state the cell theory? Think about it…Cells are ? And make
up ? And cells come from ? What researchers contributed discoveries
about cells?
For each label, explain how you determined the description you
assigned the cell. To what advantage is this condition of the plant
cell?
Prokaryotic versus Eukaryotic Cells
Examine this molecule for clues as to its identity…
Analyze this data for the relationship between the molecules of
A,T,G and C? What did you find? The researcher Chargaff originally
examined data like this.
During which phase of Mitosis would this doubled chromosome
consisting of 2 sister chromatids have been formed? What will
attach to this doubled chromosome at the region of the
centromere?
Replication of DNA strands
22. Relate the terms code, codons, and anticodons to their symbols
in this diagram?
Analyze what has happened in this mutation: to the codon? To the
amino acid? Speculate as to the result?
Transcription and Translation of a DNA strand
Reading a Codon chart to identify Amino Acids or Stop Codons
How many chromosomes are shown in Metaphase? How many chromatids
are shown in Metaphase? How many chromosomes are shown in each
Telophase cell?
When would duplicate cell organelles appear? When would spindle
microtubules appear? When would the introduction of a mutagen cause
the greatest effect?
Count down to identify: Where does the result of crossing-over
appear? What is the ultimate effect of X-over for this species?
Where are tetrads visible? What term is used to describe a cell at
position 6 in regard to purpose? In terms of chromosome
number?
The independent variable is ? The dependent variable is ? Speculate
as to what happens at 38 degrees Celcius?
What would be the result of coating the upper epidermis of a living
leaf with a greasy substance? What would be the result of coating
the lower epidermis of a living leaf with a greasy substance?
Write a statement summarizing the effect of light intensity on the
rate of photosynthesis in this experiment and for the concentration
of the carbonate containing chemical that contributes carbon
dioxide to the reaction environment.
Which molecule is produced as a result of anaerobic respiration? As
a result of aerobic respiration? Which molecule is produced by the
light reactions of photosynthesis? Which molecule is required for
active transport across the cell membrane? Which molecule is
recycled back to the mitochondria from muscle activity?
The aerobic phase of cellular respiration takes place within the
mitochondria, but where does glycolysis occur? Can you identify an
organism that utilizes alcoholic fermentation for ATP
production?