Cell Communication Worksheet
Grade 12 Biology worksheet covering key concepts in cell communication, including signaling pathways, types of signaling, and cellular responses.
Includes
Standards
Topics
Cell Communication
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Read each question carefully and answer to the best of your ability. Show all your work for short answer questions.
1. Which of the following is NOT a common type of cell signaling?
Paracrine signaling
Autocrine signaling
Intracrine signaling
Endocrine signaling
2. G-protein coupled receptors are characterized by:
Ligand binding directly opening an ion channel
Seven transmembrane helices
Acting as enzymes themselves
Binding to intracellular receptors
3. The process by which a signal is transmitted from a cell's exterior to its interior is called signal .
4. Hormones are examples of signaling molecules used in signaling.
5. A molecule that binds to a receptor is known as a .
6. Second messengers always directly activate protein kinases.
True
False
7. Direct contact signaling requires cells to be in physical contact.
True
False
8. Describe the three main stages of cell signaling.
9. Explain the role of phosphorylation cascades in signal transduction.
10. Label the following diagram of a cell membrane cross-section with the terms provided.
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