molecules are required for two glucose molecules to undergo cellular respiration?(1 point)
Responses
2
2
12
12
6
6
18
11 answers
In cellular respiration, one glucose molecule (C6H12O6) requires 6 molecules of O2 for full oxidation to produce carbon dioxide and water. Therefore, for two glucose molecules, you would need:
6 O2 x 2 glucose = 12 O2 molecules.
Thus, the correct answer is 12.
The correct option is that Ectotherms cannot insulate (stop heat loss from) their bodies and can only control their body temperature by choice.
Ectotherms, such as reptiles and amphibians, rely on external environmental conditions to regulate their body temperature and do not have the internal mechanisms (like fur or fat) that endotherms, such as mammals and birds, use for insulation and temperature regulation. Therefore, they typically use behavioral strategies (like basking in the sun) to regulate their body temperature rather than internal metabolic processes.
So, the correct response is option A.
The activity that uses ATP to raise body temperature is shivering.
Shivering is a rapid contraction and relaxation of muscles, which generates heat through metabolic activity, helping to maintain body temperature in cold conditions. Thus, the correct response is: shivering.
During cellular respiration, glucose and oxygen are converted into carbon dioxide, water, and ATP. In a sealed, insulated container, the total weight of the system does not change because the matter is not allowed to escape or enter the container.
While gas (carbon dioxide and water vapor) is created, the overall mass remains the same since all reactants and products are contained within the insulated space. Therefore, the correct response is: does not increase or decrease.
The correct order of steps for cellular respiration is:
glycolysis → Krebs cycle → electron transport chain.
Glycolysis occurs first, breaking down glucose into pyruvate. The Krebs cycle (or citric acid cycle) follows, processing the pyruvate to produce electron carriers. Finally, the electron transport chain takes the electrons from the carriers to produce ATP.
Therefore, the correct response is: glycolysis → Krebs cycle → electron transport chain.
Bats are endotherms.
Endotherms (also known as warm-blooded animals) maintain a consistent internal body temperature through metabolic processes, which includes mechanisms like shivering to generate heat when cold and sweating to cool down when hot. Therefore, the correct response is: endotherms.
