MCQs Preparation

Organelles are_______________?

A. Unicellular structures
B. Multi-cellular structures
C. Sub-cellular structures
D. Non-cellular structures

C. Sub-cellular structures

Organelles are tiny cellular structures that perform specific functions within a cell. They are often referred to as the “organs” of the cell and help the cell carry out its tasks efficiently. Some common examples of organelles include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Each organelle has a unique structure and function that allows it to carry out its role within the cell.

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All Of the follwing Can Treat kidney Stone Except?

A. Medicine
B. Surgery
C. Lithotripsy
D. Dialysis

D. Dialysis

A. Medicine, such as pain relievers and medications to help pass the stones, can be used to treat kidney stones.

B. Surgery, such as ureteroscopy or percutaneous nephrolithotomy, may be necessary if the stones are too large to pass on their own or if they are causing significant pain or blockage.

C. Lithotripsy is a non-invasive procedure that uses shock waves to break up the stones into smaller pieces that can be more easily passed from the body.

D. Dialysis cannot treat kidney stones.

Dialysis is a treatment for kidney failure and does not directly treat kidney stones. It is a procedure that filters waste products from the blood when the kidneys are no longer able to function properly.

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The energy currency of the cell is called ___________?

A. ATP
B. DNA
C. RNA
D. ADP

A. ATP

The energy currency of the cell is called adenosine triphosphate (ATP). ATP is a molecule that stores energy and releases it when needed by the cell. It acts like a rechargeable battery, with the energy being stored in the bonds between the phosphate groups. When these bonds are broken, energy is released and can be used by the cell for various processes, such as muscle contraction, protein synthesis, and active transport. The cells continually produce ATP through cellular respiration, which is the process by which cells produce energy from nutrients.

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