In ATP, the high energy bond is the one which links

Options

A. adenine with ribose
B. adenine with phosphate
C. phosphate to phosphate
D. ribose with phosphate

Answer

To answer the question about which bond in ATP is considered a high-energy bond, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding ATP Structure**:
- ATP stands for adenosine triphosphate. It consists of an adenine base, a ribose sugar, and three phosphate groups.

2. **Identifying the Bonds in ATP**:
- In ATP, there are several types of bonds:
- The bond between the adenine and ribose (adenosine).
- The bond between the ribose and the first phosphate group (phosphate ester bond).
- The bonds between the phosphate groups (phosphate to phosphate).

3. **Determining Energy Levels of Bonds**:
- The bond between the ribose and the first phosphate group is a low-energy bond, known as a phosphate ester bond.
- The bonds between the phosphate groups are known as anhydride bonds.

4. **Identifying the High-Energy Bond**:
- The high-energy bonds in ATP are specifically the anhydride bonds that link the phosphate groups to each other.
- The energy is released when these bonds are broken, which is why they are referred to as high-energy bonds.

5. **Conclusion**:
- Therefore, the high-energy bond in ATP is the one that links phosphate to phosphate.

### Final Answer:
The high-energy bond in ATP is the one which links phosphate to phosphate.

---