Enzymes, Respiration, and Photosynthesis Test Review
Name________________________________ Due Date: __________ Exam Date: ___________
Enzymes
1.
All Enzymes are _________________ made up of long chains of _____________________
2.
Enzymes _______________ chemical reactions by _______________ the activation energy
3.
Complete the graph below: Label the following diagram.
A.
B.
4.
Enzymes are necessary in living things so metabolic reactions occur fast enough to
_________________________________________________________________________
5.
Enzymes are not _______________ or _______________ in a chemical reaction
6.
The molecules on which enzymes act are called ______________ (reactant in the reaction)
7.
Enzymes have an ____________________ that binds to the substrate like a lock and key Label the diagram.
A: _______________
B: _______________
C: _______________
D: _______________
E: _______________
8.
Enzymes only match to _______ (#) substrate molecule. (Substrate specific). Therefore, your cells must have ______________ (#) of different enzymes each promoting a different chemical reaction.
9.
A ______________ enzyme has lost its specific shape and no longer ______________ properly
10.
Enzyme function is affected by ___________________________________________________
11.
Catal ase is an enzyme found in the ____________ (body organ). It is needed to break down _________________ (its substrate) into the products _____________ and ___________.

Energy
12.
All living things require ____________ to perform all of their life functions
13.
The primary source of energy for all living things is the ____________
14.
The sun’s energy (______________ energy) is converted into food (____________ energy) by plants in the process called ____________________
15.
The chemical energy stored in food is released by the process of ________________________ and temporarily stored in the form of __________. Cells then use _________ to do their work.
16.
The processes of photosynthesis and respiration form a _____________ because the
_______________ of one process are the _______________ for the other.
17.
Organisms that produce their own food (nutrients) are known as ________________________.
18.
Organisms that obtain energy by eating other organism are known as ____________________.
Cellular Respiration
19.
The chemical reaction for respiration is ( Label the reactants and the products)
20.
What simple sugar is broken down in the mitochondria? ______________________
21.
__________ organisms perform the process of respiration to release ________________ from food and temporarily store it in the form of __________
22.
An aerobic environment is one in which ____________________________________________
23.
An anaerobic environment is one in which __________________________________________
24.
Respiration occurs in two main steps: 1. ________________ and 2. _____________________
25.
Glycolysis takes place in the cell’s ___________________________ and produces a net gain of
__________ ATP molecules.
26.
Oxidative respiration occurs in an eukaryotic cell’s ________________________ and produces a net gain of __________ ATP molecules. This only occurs if _______________ is present.
27.
Draw a model of a cell. Label the sites of glycolysis and oxidative respiration in the cell.
28.
Cellular respiration produces a net gain of ______ ATP molecules for every 1 glucose molecule
29.
The name of the process that takes place when glucose is broken down in the absence of oxygen (anaerobic environment) is called _____________________. This process results in the formation of a net gain of __________ ATP molecules and therefore is _______________ efficient than cellular respiration.

30.
Humans use bacteria and yeast that perform alcohol fermentation to make products like
_______________________, ______________________, and _____________________.
31.
Humans use bacteria that perform lactic acid formation to make fermented milk products like
_____________________, ______________________, and ________________________.
32.
You get muscles cramps when your muscles aren’t getting enough _______________ to perform respiration. Therefore lactic acid ____________________ takes place and the build up of ____________________ causes the muscles to cramp because they are not producing enough __________ to continue to do their work.
33.
Bromothymol blue is a chemical indicator that turns _______________in the presence of carbon dioxide. When you exhale into a solution of BTB it turns _______________ indicating that ____________________ is present. This proves that respiration is occurring in the human body because carbon dioxide is a __________________________________ of respiration
Photosynthesis
34.
The chemical reaction for photosynthesis is ( Label the reactants and the products)
35.
What are the raw materials for photosynthesis? ______________________________________
36.
What simple sugar is produced? _________________
37.
Only organisms that contain ____________________ (plants and some bacteria and protists) are able to perform the process of photosynthesis to make their own ______________________
38.
The main light-absorbing pigment in plants is _________________. Its color is ____________ because it reflects ____________ wavelengths of light. It best absorbs ___________________ and _____________________ wavelengths of light.
39.
Plant organelle where photosynthesis takes place is the ___________________.
40.
Draw a diagram of a chloroplast: Label the thylakoid and stroma. Color it green.
41.
Bromothymol blue is a chemical indicator that turns _______________in the presence of oxygen which is a ____________________ of photosynthesis.
42.
Three variables needed for photosynthesis to take place in the Photosynthesis in Plants lab were
_______________________, _______________________, and _________________________

43.
The rate of photosynthesis is affected by the following environmental conditions (draw a graph for ea.):
__________________, __________________, __________________, and ________________
44.
Look at the following diagrams and determine what they show about the rate of photosynthesis.
Write your thoughts in the text box.
A.
B.
C.
45.
Color the wavelength of light (color) and label which areas has the highest rate of photosynthesis according to the diagram.