Activities
Excersises for the chapters 8-10
Energy
Class Activity
Without ATP
GLU
+
glutamic acid
•
•
•
•
•
NH3
ammonia
=
glutamine
glutamic acid + ammonia
glutamine
ΔG = +3.4 Kcal
Is this exergonic or endergonic?
Does it release or consume energy?
Which has greater free energy?
(reactants or products)
• How many ATP are needed?
ACTIVITY
• You are designing an experiment with an
enzyme that braks down starch (amylase)
that is present in your small intestine.
• What temperature will be the best?
• What pH will be the best?
• What substrate is the best?
• What other factors should you consider?
ACTIVITY
A
X
B
C
Q
Y
Z
Which of these has a non-competitive inhibitor?
What is "X"?
What is "Q"?
Which is a competitive inhibitor?
ACTIVITY
C
A
B
What type of enzyme is this?
What is represented by A?
What is the effect of C on the enzyme in this case?
Is B an example of stable or inactive?
Activity
• catechol + O2 → benzoquinone + H2O
catechol oxidase
•
•
•
•
what is the substrate?
what is the enzyme?
what is the product?
knowing you need to heat it for the
reaction to occur, does it consume
energy?
• Is it endergonic or exergonic?
ACTIVITY
• lactose + H2O → glucose + galactose
• what do you expect the name of the enzyme will
be?
• it needs the presence of Ca+2 and/or Mg+2, what
is their function?
• If having this reaction in the lab, how would you
stop it, considering all factors seen before?
• If using negative feed back to stop it, what do
you need to add to the solution where the
reaction is taking place?
ACTIVITIES
• Is phosphorilation anabolic or catabolic?
• Where in the cell does oxidative
phosphorilation occur?
• What organism(s) have ox. phosph.?
• Where does photophosphorilation occur?
• What organism(s) show
photophosphorilation?
• Write the formulas of both.
ACTIVITY
• How many ATPs are formed during
aerobic respiration?
• How many times more efficient is aerobic
compared to anaerobic respiration?
• Where does the Lactic Acid fermentation
occur?
• give examples of organisms that show
anaerobic respiration.
ACTIVITY: Fill in the blanks
Cytosol
Mitochondrion
2
3
1
A
4
B
5
C
X
Y&Z
8
9
W
7
A-C are substrate/product
W-Z are stages of cellular respiration
10
1-9 are ammounts of energy produced
10 = total ammount of ATP/ molecule of glucose
The End
6
ACTIVITIES
• According to its nutrition, what type of
organism are:
– dogs
– bacteria found near vents at the bottom of the
ocean.
– algae
ACTIVITIES
• According to what I'm wearing right now, what
colors are being reflected and what are being
absorbed?
• If right after the snow storm of winter 2010 you
put a white paper and a black paper over the
snow. Which will melt faster the snow under it?
• Why is it recommended not to wear dark
colors/black in summer but it is best in winter?
• Which color, yellow or green, has the lowest
wavelength?
ACTIVITIES
Name the
parts and
describe what
is occuring
7
4
2
3
1
8
5
6
?
What type of electron flow is this one?
Name the other type.
What is the difference between them?
?
Activity
•
C4 and CAM comparison
•
Identify:
– location in cell
– name of cycle
– time of day it occurs
– is it spatial or temporal
separation?