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EOC Prep April 20
Which of these best explains the difference between the way animals and plants exchange gases with their environments?
a) Animals use only photosynthesis, while plants use both photosynthesis and respiration
b) Animals use only respiration, while plants use both photosynthesis and respiration
c) Animals use both photosynthesis and respiration while plants use only respiration
d) Animals use both photosynthesis and respiration while plants use only photosynthesis
April 20Bio II
Starting with glucose draw a flow chart that shows the
three main steps in cell (aerobic) respiration.
Include what goes in and comes out of the process.
HW: complete page 2 of theEOC review
Guess the Question!
• Water has a high specific heat which means that water’s temperature will not change dramatically when it absorbs or loses heat
• Water is like a heat reservoir that can store a lot of heat energy without raising its temperature dramatically (Ocean-side communities tend to have milder climates)
• Hydrogen bonding in water helps form the tertiary structure (ball of yarn) of proteins by forcing hydrophobic regions to cluster together
• Water fills the central vacuole and keeps the cell turgid (rigid in terms of shape); think of a full water balloon versus a slightly filled water balloon
Guess the Question#10!
• Water has a high specific heat which means that water’s temperature will not change dramatically when it absorbs or loses heat (body buffer)
• Water is like a heat reservoir that can store a lot of heat energy without raising its temperature dramatically (Ocean-side communities tend to have milder climates)
• Hydrogen bonding in water helps form the tertiary structure (ball of yarn) of proteins by forcing hydrophobic regions to cluster together (maintains protein structure)
• Water fills the central vacuole and keeps the cell turgid (rigid in terms of shape); think of a full water balloon versus a slightly filled water balloon (cell turgidity)
Guess the Question!• Through the process of mitosis, an
organism increases the number of cells in its body (1� 2 � 4 � 8 �16 � ?)
• As an organism grows and develops, its cells become more specialized to perform a variety of functions– An example is that some cells
become skin cells while other cells become nerve cells
2
Guess the Question#1
• Through the process of mitosis , an organism increases the number of cells in its body (1� 2 � 4 � 8 � 16 � ?)
• As an organism grows and develops, its cells become more specialized to perform a variety of functions (differentiation)– An example is that some cells become skin
cells while other cells become nerve cells
Guess the Question!• A single-celled organism (protist) divides in two
to create two new protists (both identical to the original)
• A single-celled organism (hydra) grows an identical copy of itself on its side; eventually the new copy separates from the original and becomes a new hydra
• A donor nucleus is placed inside a donor egg and the new cell grows into a new organism identical to the organism that donated the nucleus
• Two gametes (haploid cells) fuse to create a zygote
Guess the Question#11
• A single-celled organism (protist) divides in two to create two new protists (both identical to the original) (binary fission)
• A single-celled organism (hydra) grows an identical copy of itself on its side; eventually the new copy separates from the original and becomes a new hydra (budding)
• A donor nucleus is placed inside a donor egg and the new cell grows into a new organism identical to the organism that donated the nucleus (cloning)
• Two gametes (haploid cells) fuse to create a zygote (sexual reproduction)
Photosynthesis -- the process of converting carbon dioxide, water, and the energy in sunlight
into high energy sugars (glucose)
Light Energy
Chloroplast
CO2 + H2O Sugars + O 2
Section 8-2
Photosynthesis: Reactants and ProductsPhotosynthesis Overview
3
ChloroplastLight
O2
Sugars
CO2
Light-Dependent Reactions
CalvinCycle
NADPH
ATP
ADP + PNADP+Chloroplast
Section 8-3
Figure 8-7 Photosynthesis: An OverviewLight-dependent reaction � uses sunlight energy to produce oxygen, ATP, and other high energy moleculesLight-independent reaction (Calvin cycle) � produces glucose
Photosynthesis
includes
of
take place intakes place in uses
to produce to produce
use
Light-dependentreactions
Calvin cycle
Thylakoidmembranes Stroma NADPHATPEnergy from
sunlight
ATP NADPH O2 Chloroplasts High-energysugars
Section 8-3
Concept Map
4
Factors affecting the rate of photosynthesis
• Lack of water will reduce the rate of photosynthesis
• Temperature – enzymes only work well at specific temperature ranges (too hot or cold will slow the rate of photosynthesis)
• Intensity of light – as light increases so does the rate of photosynthesis, BUT ONLY UP TO A CERTAIN POINT!
#P-H clip and DS clip
EOC performance event practice
• Complete the “Competition Among Organisms” worksheet
• Go to my website and click on the EOC practice test link; choose bio session II
• Create your graph (from the worksheet) on the EOC website and show me when you are finished
EOC practice
• Click on the link directly below “DESE website for Biology practice test”
• Choose the “released form/key” for biology• Record your answers on a sheet of paper• Go back to the main page and choose
answer key; check your answers• If time allows, choose the performance
event and read each question