Name:_________________
Period: ________
Photosynthesis & Respiration
1. Define Autotroph & Heterotroph and give an example in the chart below. (p.219)
TERM
DEFINITION
EXAMPLE
2. What does ATP stand for? _____________________________________________(p.221)
3. What is ATP? ___________________________________________________________
__________________________________________________________________
4. Draw & label an ADP molecule and an ATP molecule below.
ADP
ATP
5. What is the main difference in these 2 molecules? ____________________________________
6. When is the energy stored in ATP released? ___________________________________
7. Write the equation for photosynthesis below and label the products and reactants.
8. Which organelle is responsible for photosynthesis? ________________________ (p.222
9. Draw a picture of what a chloroplast looks like in the box below.
Notice the stacks of thylakoids
found in the chloroplast.
This is a good way to know that
the organelle you are looking at
is a chloroplast.
Plants may look green, but there are actually several different pigments within the cells of a leaf. You
can see the different pigments in the fall when leaves change colors. Pigments are used by plants to
help transfer light (solar) energy into chemical energy. Figure 6 on p.223 shows the wavelengths of
light absorbed and reflected by two different types of chlorophyll pigments.
10. Which colors of light are absorbed by chlorophyll a? __________________________
11. Which colors of light are absorbed by chlorophyll b? __________________________
12. Which color of light is reflected? _______________
13. Why are leaves green? __________________________________________________
14. Why do leaves turn yellow, red and orange in the autumn in some parts of the United States?
____________________________________________________________________ (p.224)
15.Write the equation for cellular respiration and label the products and reactants. (p.228)
16.Which organelle is responsible for respiration? ____________________________
17.Draw a picture of what a mitochondrion looks like in the box below.
Notice the folded membranes
found in mitochondria.
This is a good way to know that
the organelle you are looking at
is a mitochondrion.
Mitochondria convert the energy found in glucose into energy for use by the cell. In short, it
turns chemical energy into cellular energy.
18.What is the molecule used by the cell for energy? (refer to #3 on the front of this page) _______
There are 2 kinds of cellular respiration that can take place in the mitochondria. They are described below.
Type of Respiration
Aerobic
Anaerobic
Description
# of ATP produced
Requires oxygen
Does not require oxygen
36-38
2
19.Which type of respiration produces the most energy? _________________
20.Why do you think that is? __________________________________________________
21.Compare the photosynthesis and respiration equations; what do you notice about them?
_______________________________________________________________________
22. Looking the diagram below, __________________ happens in chloroplasts and
__________________ happens in mitochondria.
Sunlight
Photosynthesis in
Chloroplasts
C6H12O6 + 6 O2
6 CO2 + 6 H2O
Respiration in
Mitochondria
ATP