In cellular respiration, ___ ATP molecules must be input to initiate the process of glycolysis.
A) 2 **
B) 3
C) 5
D) 6
Glycolysis is the process where cells split the sugar glucose to make 2 ATP. Both prokaryotes and eukaryotes carry out glycolysis. Where (what location) does glycolysis occur in the eukaryotic cell pictured here?
A) 2 X
B) 5 X
C) 9 X
D) 11 Correct
An experimental design was set up by biology students to observe cellular respiration by aerobic bacteria in a closed culture. A measured amount of glucose was added to the culture at the beginning of the experiment with no subsequent glucose added later. The students measured carbon dioxide and oxygen levels using electronic probes. The initial oxygen level was 600 parts per million (ppm) and the initial carbon dioxide level was 120 ppm. Which data is consistent with the process of cellular respiration occurring by the bacteria in the culture if tested one hour after the initial reading in the experiment?
A) Oxygen- 720 ppm
Carbon dioxide- 80 ppm
B) Oxygen- 600 ppm
Carbon dioxide- 120 ppm
C) Oxygen- 200 ppm
Carbon dioxide- 520 ppm **
D) Oxygen- 800 ppm
Carbon dioxide- 720 ppm
Yeast is a fungus commonly used in baking that makes dough rise through the process of fermentation. For fermentation to occur yeast requires fuel in the form of sugar. The fermentation rate varies depending upon the type of sugar used. You and your lab mates tested the fermentation rate of yeast using different sugars. Glucose and fructose are both monosaccharides while sucrose, lactose, and fructose are disaccharides. What can NOT be concluded based on the data collected?
A) Glucose has the highest rate of fermentation.X
B) Fructose and maltose have similar rates of fermentation. X
C) Lactose is not an effective sugar source for fermentation. X
D) Disaccharides have a higher rate of fermentation than monosaccharides. Correct
The metabolic reaction that occurs in the cells of all living organisms is:
C6H12O6 + 6O2 → 6H2O + 6CO2
Which process involves a reaction similar to this reaction?
A) burning of fossil fuels Correct
B) reduction of carbon compoundsX
C) formation of lactic acid from glucose X
D) transfer of energy into high energy compounds like ATP X
How is ATP used? It is used as
A) the building block of proteins.
B) an energy source for diffusion.
C) an energy source for cell processes. ***
D) the building block of lipid molecules.
Cells require chemical energy for three general types of tasks: to drive metabolic processes that would not occur automatically, to transport substances across membranes, and to do mechanical work, such as moving muscles. Organisms generate chemical energy via cellular respiration. Analyze the illustration of cellular respiration and select the one piece that is NOT critical to the production of cellular energy.
A) food
B) oxygen
C) ATP molecules
D) carbon dioxide ***
During the light dependent reaction of photosynthesis, light energy is converted to the energy currency of ALL cells. This energy-carrying molecule is needed to produce glucose. This molecule is
A) ATP Correct
B) CO2
C) H2O
D) NADPH X
A snail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. Tubes were placed under a grow light for 24 hours and the results recorded. The test tubes were then covered for 24 hours to produce a dark environment and the results recorded. Which statement best explains the change in Test Tube D from the light setup to the dark setup.
A) The rate of photosynthesis decreased in the dark, thus the elodea used less CO2. The elodea and snails produced less CO2 through cellular respiration, causing the CO2 to be in equilibrium, making the solution more neutral (yellow).
**B) The rate of photosynthesis decreased in the dark, thus the elodea used less CO2. The elodea and snails continued to produce CO2 through cellular respiration, raising the level of CO2 in the tube, causing the solution to become more acidic (yellow).
C) The rate of photosynthesis decreased in the dark, thus the elodea used more CO2. The elodea and snails continued to consume CO2 through cellular respiration, lowering the level of CO2 in the tube, causing the solution to become more basic (yellow).
D) The rate of photosynthesis decreased in the dark, thus the elodea used less CO2. The elodea and snails continued to consume CO2 through cellular respiration, raising the level of CO2 in the tube, causing the solution to become more acidic (yellow).
All living things need energy; it is a requirement for life. In a typical cell, ATP, the high energy molecule, is produced in the in the presence of a sugar (glucose) and .
A) nucleus; oxygen
B) ER; carbon dioxide.
C) mitochondria; oxygen. ***
D) vacuole; water vapor.
