Cell Communication Worksheet
Explore the mechanisms of cell communication, including types of signaling, receptors, and responses in this Grade 11 Biology worksheet.
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Cell Communication Worksheet
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which type of cell signaling involves a cell releasing a signaling molecule that acts on target cells nearby?
Endocrine signaling
Paracrine signaling
Autocrine signaling
Synaptic signaling
2. G protein-coupled receptors (GPCRs) are characterized by:
Having a ligand-gated ion channel
Activating a G protein upon ligand binding
Directly phosphorylating target proteins
Being located exclusively in the cytoplasm
1. The process by which a signal on a cell's surface is converted into a specific cellular response is called signal .
2. Hormones are examples of signaling molecules used in signaling.
3. A molecule that specifically binds to another molecule, often a larger one, is called a .
1. All cell signaling pathways involve protein phosphorylation.
True
False
2. Intracellular receptors bind to signaling molecules that are typically hydrophilic.
True
False
1. Briefly describe the three main stages of cell signaling.
2. Explain the role of second messengers in cell signaling pathways.
The diagram below illustrates a cross-section of a cell membrane. Identify the components that would be involved in receiving an external signal.
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