WorksheetsCellular respiration and Photosynthesis
Total questions: 33
Worksheet time: 20mins
Name
Class
Date
1.
Which is a reactant of cellular respiration?
a)
energy
b)
glucose
c)
carbon dioxide
d)
water
2.
______________ produces the most ATP.
a)
photosnthesis
b)
aerobic respiration
c)
anaerobic respiration
d)
glycolysis
3.
A plant is releasing a gas under bright light. This gas is most likely ___________?
a)
co2
b)
methane
c)
water vapor
d)
oxygen
4.
Carbon dioxide and oxygen both enter and leave the leaf at the
a)
pore
b)
spongy mesophyll
c)
guard cells
d)
stomata
5.
What is the waste energy from respiration given lost as?
a)
Heat
b)
Light
c)
Sound
d)
Kinetic
6.
What happens to your breathing rate when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
7.
Which organ excretes (removes from the body) carbon dioxide?
a)
Lungs
b)
Liver
c)
Heart
d)
Kidney
8.
What are the products of aerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
9.
What type of respiration requires oxygen?
a)
Aerobic
b)
Anaerobic
10.
What happens to your pulse when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
11.
What is the molecule called that mitochondria produce when they break down glucose through cellular respiration?
a)
ATP
b)
ADP
c)
DNA
d)
80p
12.
All living things do which of the following?
a)
Chemosynthesis
b)
Respiration
c)
photosynthesis
d)
all of the answers
13.
The Krebs cycle does not occur if
a)
oxygen is present
b)
fermentation occurs
c)
glycolysis occurs
d)
carbon dioxide is present
14.
The overall equation for cellular respiration is
a)
6O2 + C6H12O6 -> 6CO2 + 6 H20 + ATP
b)
6CO2 + C6H12O6 -> 6O2 + 6H20
c)
6O2 + ATP -> 6CO2 + C6H12O6
d)
None are correct
15.
All the following are sources of energy during an exercise EXCEPT
a)
stored ATP
b)
alcoholic fermentation
c)
lactic acid fermentation
d)
cellular respiration
16.
The "Final Electron Acceptor" of the ETC is
a)
Oxygen
b)
Nitrogen
c)
CO2
d)
H2O
17.
Which of the following is the correct order of reactions in respiration?
a)
glycolysis, Kreb's cycle, pyruvate conversion, electron transport
b)
kreb's cycle, electron transport, pyruvate conversion, glycolysis
c)
glycolysis, pyruvate conversion, Kreb's cycle, electron transport
d)
electron transport, pyruvate conversion, glycolysis, pyruvate conversion
18.
When NADH drops off its electrons in the electron transport chain, it becomes _____.
a)
ATP
b)
ADP
c)
NAD+
d)
H20
19.
Which high energy electron carrier is regenerated during fermentation that allows cells to continue to make ATP using glycolysis?
a)
NAD+
b)
NADPH
c)
ATP
d)
ADP
20.
Name the 3 carbon molecule produced when glucose is broken in half during glycolysis.
a)
lactic acid
b)
pyruvic acid
c)
acetly-coA
d)
citric acid
21.
Which process produces CO2 as a waste product?
a)
Lactic Acid Fermentation
b)
Ethanol (Alcoholic) Fermentation
22.
Yeast is a(n)
a)
autotroph
b)
producer
c)
heterotroph
d)
plant
23.
Why is yeast used to bake bread?
a)
The waste gas, CO2, makes bread rise
b)
The alcohol produced makes bread dangerous
c)
The yeast consumes O2, causing bread to rise
24.
What is a disadvantage of fermentation as a process?
a)
It produces too much ATP
b)
It only produces 2 ATP
c)
It occurs in the absence of oxygen
d)
It is only for quick bursts of energy
25.
Fermentation is:
a)
Cellular Respiration
b)
Photosynthesis
c)
Aerobic
d)
Anaerobic
26.
What is the starting molecule for glycolysis?
a)
Glucose
b)
ADP
c)
Oxygen
d)
Pyruvic Acid
27.
During fermentation
a)
NAD+ is regenerated, allowing glycolysis to continue
b)
oxygen is required
c)
glucose is split into 3 pyruvic acid moleculees
d)
water is produced
28.
Where does glycolysis occur?
a)
mitochondrial matrix
b)
cytoplasm
c)
inner membrane of mitochondria
d)
outer membrane of mitochondria
29.
After intense activity, your muscles feel sore because:
a)
the accumulation of NAD+
b)
the accumulation of lactic acid
c)
the accumulation of ATP
d)
the accumulation of carbon dioxide
30.
The prefix “kilo” means
a)
1,000
b)
100
c)
10,000
31.
Calorie is a measure of
a)
Energy
b)
Weight
c)
Distance
d)
Volume
32.
Humans use calories when
a)
a. Running
b)
b. Studying
c)
c. Sleeping
d)
d. All of the above
33.
Nutritionists know that a gram of protein contains ____ Calories, a gram of fat has _____ Calories, and a gram of
carbohydrate has _____ Calories.
a)
4 / 9 / 4
b)
9 / 4 / 9
c)
5 / 8 / 6
d)
5 / 8 / 6
100 %
