Скачать или смотреть AP Biology - Cell Communication & Signal Transduction

Learn cell communication and signal transduction pathways for AP Biology Unit 4. This video breaks down how cells receive signals, process information through receptors, and respond to environmental changes.

You'll explore the four types of cell signaling (endocrine, paracrine, autocrine, and juxtacrine), understand receptor specificity, and see how signal transduction connects to other AP Bio concepts. Includes practice questions to test your understanding.

⏱️ TIMESTAMPS:
0:00 Video Overview
0:30 Communication Examples
1:01 Human Communication Methods
1:32 Non-Verbal Signals
2:03 Parent Trap Handshake
2:35 Cell Communication Types
3:06 Direct and Long-Distance Signaling
3:37 Endocrine Signaling
4:39 Autocrine Signaling
5:10 Paracrine Signaling
5:40 Dandelion Analogy
6:13 Contact-Dependent Signaling
6:45 Juxtacrine Details
7:16 Package Distance Analogy
8:16 Communication Questions
8:48 Endocrine as Long-Distance
9:50 Short-Distance Regulators
10:52 Synapses and Neurotransmitters
11:54 Response Mechanisms
12:56 Wave Analogy
13:27 Long-Distance Endocrine
14:30 Synapse Identification
15:31 Bloodstream Travel
16:34 Receptor Specificity
18:39 Endocrine Questions
19:11 Juxtacrine Examples
20:13 Plant Plasmodesmata
21:44 Juxtacrine Questions
22:14 Quorum Sensing
23:47 Cancer and Quorum Sensing
25:20 Endocrine Homeostasis
25:51 Diabetes Examples
26:53 Growth and Sex Hormones
28:12 Practice Question 1
29:14 Practice Question 2
31:26 Question 2 Answer
31:57 Practice Question 3
34:48 Question 3 Answer
35:19 Final Questions
35:50 Types Overview
36:22 Receptors Discussion
36:54 Closing Remarks

📚 WHAT YOU'LL LEARN:
• Four types of cell signaling and their differences
• Signal transduction pathway mechanisms
• Receptor types and ligand specificity
• Real-world examples like quorum sensing and diabetes
• Practice questions for AP exam preparation

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