Frog Dissection Procedures and Techniques

The video tutorial demonstrates the dissection of a frog, focusing on preparing and analyzing muscle fibers. Initially, the frog is positioned and skinned. A thigh muscle sample is cut, moistened, and prepared for analysis. The muscle fibers are treated with ATP solution, and their length is measured. A control experiment is conducted using distilled water instead of ATP. Finally, the results are recorded for comparison.

What is the first step in preparing the frog for dissection?

• Moistening the muscle with Ringer solution

• Removing the thigh muscle

• Placing the frog on the dissection board

• Cutting open the skin

Which tool is used to peel off the skin from the frog's abdomen?

• Scalpel

• Scissors

• Tweezers

• Forceps

What is the purpose of moistening the muscle with Ringer solution?

• To measure the muscle

• To clean the muscle

• To preserve the muscle

• To hydrate the muscle

How long should the strand of muscle fibers be cut to?

• 1 cm

• 2 cm

• 3 cm

• 4 cm

What is the purpose of adding ATP solution to the muscle fibers?

• To observe contraction

• To measure the initial length

• To change the color of the fibers

• To dry the fibers