Grade 11 Frog Dissection Worksheet
A comprehensive worksheet for Grade 11 biology students covering frog external and internal anatomy, dissection procedures, and physiological functions.
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Grade 11 Frog Dissection Worksheet
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Carefully read each question and provide thorough answers. Refer to your dissection guide and observations. For diagrams, label all indicated structures.
1. Which of the following external features is primarily responsible for camouflage in a frog?
Tympanum
Nictitating membrane
Dorsal skin coloration
Ventral skin coloration
2. The frog's tongue is attached at the front of its mouth. What is the advantage of this adaptation?
Allows for efficient chewing of prey
Enables a longer reach to catch prey
Facilitates breathing through the mouth
Aids in vocalization
1. The large, three-lobed organ responsible for producing bile is the .
2. Food passes from the esophagus into the J-shaped organ called the .
3. The small, dark organ often found embedded in the liver, which stores bile, is the .
4. The primary organs for gas exchange in an adult frog are the .
1. Trace the path of food through the frog's digestive system, listing the major organs in order.
2. Describe the function of the cloaca in the frog's excretory and reproductive systems.
1. Frogs have a three-chambered heart.
True
False
2. The spleen is part of the frog's digestive system.
True
False
Label the indicated external structures of the frog.
Label the indicated internal organs of the frog.
1. Compare and contrast the respiratory mechanisms of a frog in water versus on land.
2. Explain how the frog's circulatory system is adapted for both aquatic and terrestrial environments.