Quantitative study of energy relationships in biological systems obeys:
Correct answer: B. Laws of thermodynamics
- A. Bioenergetics
- B. Laws of thermodynamics
- C. Laws of thermochemistry
- D. Laws of chemical energetics
Explanation
The correct answer is the laws of thermodynamics. These laws provide the essential framework for understanding how energy is conserved and transformed in all systems, including biological ones. Although bioenergetics is relevant to energy flow in living organisms, it does not govern energy transformations. Thermochemistry is limited to heat changes in chemical reactions, and laws of chemical energetics is not a recognized term. Thus, the laws of thermodynamics are the appropriate principles that apply universally.
Last updated
About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
Practise Bioenergetics
1,378 free Bioenergetics MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
3-Phosphoglycerate in the presence of ATP and reduced NADP (from the light-independent stage) is reduced to:
3CO₂ + 6NADPH + 9ATP ⎯→ (CH₂O) 3 + 6 NADP + 9 ADP + 9 Pi + 3 H₂O. It is a summary equation of:
A 25 years old female with chronic fatigue was diagnosed with iron deficiency anemia and low blood count. What is the cause of her fatigue?
A aldo sugar that is intermediate between respiration and photosynthesis:
A biochemical process which occurs within a cell to breakdown complex compounds to produce energy is called: