All are true about ATP except:
Correct answer: C. Contains three high energy bonds
- A. Energy currency of cell
- B. Contains ribose sugar
- C. Contains three high energy bonds
- D. Contains three phosphate groups
Explanation
Option C is correct. No, ATP does not contain three high-energy bonds. It actually contains two high-energy bonds. The high-energy bonds in ATP are the bonds between the phosphate groups. When these bonds are broken, they release a lot of energy, which can be used to power cellular processes. The third phosphate group in ATP is not considered to be a high-energy bond because it is not as easily broken. This is because the third phosphate group is linked to the second phosphate group by a phosphoanhydride bond, which is a very strong bond. The two high-energy bonds in ATP are located between the first and second phosphate groups, and between the second and third phosphate groups. When these bonds are broken, they release about 7.3 kcal/mol of energy each. This energy can be used to power a variety of cellular processes, such as muscle contraction, protein synthesis, and active transport.
Last updated
About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
Practise Biological Molecules
1,790 free Biological Molecules 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.