Download Worksheet - Humble ISD

Name_________________________________________________________________________________Date__________________Period______
Unit 4 Cellular Energy Worksheet
1. Study the diagram below. Label the processes using the following terms: Oxidative Respiration, Lactic Acid Fermentation, Glycolysis,
Alcoholic Fermentation, Krebs cycle, & ETC
2. Fill in the blanks with the number of molecules produced from each process.
3. Write the number of ATP molecules produced by each process listed below. Then add up these numbers to get the total number of ATP molecules
produced when one glucose molecule is broken down by cellular respiration.
______ ATP made in Glycolysis;
______ ATP made in Krebs cycle;
+______ ATP made in the Electron Transport Chain
=______ ATP total for the breakdown of one glucose molecule during cellular respiration
Answer the questions below.
4. What molecule provides energy in the cell where it is needed? (Use full name!!!)_____________________________________________________
5. ATP has _________ phosphate groups. ADP has _________ phosphates.
6. The energy in ATP is stored in its ___________________________________________________________________________________.
7. Define autotroph and give an example: _____________________________________________________________________________________
8. Define heterotroph and give an example:____________________________________________________________________________________
9. Aerobic means it ________________________________oxygen whereas anaerobic means it _________________________________oxygen.
10. Label the Complex:1.____________________________
2._______________________________________________
3._______________________________________________
4._______________________________________________
11. Fill in the chart using your notes and illustrations.
Process
Where does it
Aerobic or
Occur?
anaerobic?
Step 1: Glycolysis
Step 2: Oxidative Resp:
Krebs Cycle
Step 2:Oxidative Resp:
ETC
Step 2: Alcoholic
Fermentation
Step 2: Lactic Acid
Fermentation
Reactants
Products
12. Most eukaryotic cells produce about ________________________ ATP molecules per glucose molecule.
13. What is the process by which glucose is converted into pyruvic acid? ___________________________________________________.
14The enzyme necessary to break down the carbohydrate sucrose is _______________________________.
15. With every turn of the Krebs Cycle, how many ATP Molecules are made? ______. So, each glucose produces _____ ATP in Kreb’s cycle.
16. What is the primary waste product of the Krebs Cycle? _________. What happens to this product? _________________________________.
17. When pyruvic acid is converted into carbon dioxide and ethanol (alcohol), the process is called __________________________________________.
18. The Krebs Cycle is also known as the _______________ Acid Cycle.
19. The electron transport chain is driven by two products of the Krebs Cycle - ____________________ and _____________________.
20. Write the balanced chemical equation for cellular respiration. Label “reactants” and “products”.
_________________________________________________-->_______________________________________________________________
21. What do the molecules NADH and FADH2 transfer to the ETC? ________________________________.
22. What is the main purpose of the ETC?___________________________________________________________________________________
23. Why is oxygen important to the ETC?___________________________________________________________________________________
24. Write the equation for photosynthesis. Label each side of the equation as “reactants” or “products”.
___________________________________________________-->______________________________________________________________
25. What is the relationship between photosynthesis and cellular respiration?_________________________________________________________
26. What organisms use alcoholic fermentation? _____________________________________________________________________________
27. What type of fermentation do human muscle cells go through when exercising rapidly? ____________________________________________
Match the following terms with their meaning or purpose. Items can be used more than once, some have more than 1 answer.
_______28. molecule that stores and transports energy in the cell
_______29. C6H12O6
_______30. C3H6O3 (1/2 a glucose molecule)
_______31. CO2
_______32. gas that is the product of photosynthesis and is a reactant in cellular respiration
_______33. gas that is produced as a waste product of cellular respiration and a reactant in photosynthesis
_______34. organelle where cellular respiration occurs
_______35. organelle where photosynthesis occurs
_______36. location in cell where glycolysis and fermentation takes place
_______37. Glucose is broken down into two molecules called __in the process called glycolysis
_______38. green pigment in plants that absorbs light energy for plants to use
________39. Builds up in muscles when no oxygen available
_______40. term describing a process that requires oxygen to happen
_______41. term describing a process happens only in the absence of oxygen
_______42. has three phosphate groups
_______43. organisms such as plants that can make their own food
_______44. organisms like animals that can not make their own food, they must consume food to get energy
_______45. adenosine triphosphate
_______46. organelle where the energy in food is handed over to ATP
_______47. mushrooms are classified as ___, because they live off of dead or decaying organisms to get energy
_______48. has only two phosphate groups (has less energy)
_______49. Contains a double membrane, ribosomes, circular DNA
_______50. ATP Synthase occurs only in the cell membrane of ___cells.
A. Cytoplasm
B. Anaerobic
C. Autotroph
D. Chloroplast
E. Mitochondria
F. ADP
G. ATP
H. Aerobic
I. Heterotroph
J. Chlorophyll
K. Lactic Acid
L. Eukaryotic
M. Carbon dioxide
N. Oxygen
O. Prokaryotic
P. Glucose
Q. Citric Acid
R. Pyruvic Acid
S. GP3