Cell Communication - Principles of Biology | Biology+

Course

Introductory Biology

Study Pack

Set 1: An Introduction to Biology

Set 2: The Chemical Basis of Life I: Atoms, Molecules, and Water

Set 3: The Chemical Basis of Life II: Organic Molecules

Set 4: General Features of Cells

Set 5: Membrane Structure, Transport, and Cell Junctions

Set 6: Energy, Enzymes, and Cellular Respiration

Set 7: Photosynthesis

Set 8: Cell Communication

Set 9: Nucleic Acid Structure, DNA Replication, and Chromosome Structure

Set 10: Gene Expression at the Molecular Level

Set 11: Gene Regulation

Set 12: Mutation, DNA Repair, and Cancer

Set 13: The Eukaryotic Cell Cycle, Mitosis, and Meiosis

Set 14: Patterns of Inheritance

Set 15: Genetics of Viruses and Bacteria

Set 16: Genetic Technology

Set 17: Genomes, Repetitive Sequences, and Bioinformatics

Set 18: Origin and History of Life

Set 19: An Introduction to Evolution and Population Genetics

Set 20: Origin of Species and Macroevolution

Set 21: Taxonomy and Systematics

Set 22: Microorganisms: The Archaea, Bacteria, and Protists

Set 25: Animal Diversity: Invertebrates

Set 26: Animal Diversity: Vertebrates

Set 27: An Introduction to Flowering Plant Form and Function

Set 28: Flowering Plants: Plant Behavior

Set 29: Flowering Plants: Nutrition and Transport

Set 30: Flowering Plants: Reproduction

Set 31: Animal Bodies and Homeostasis

Set 32: Neuroscience I: Structure, Function, and Evolution of Nervous Systems

Set 33: Neuroscience II: Sensory Systems

Set 34: Muscular-Skeletal Systems

Set 35: Digestive Systems and Nutrition

Set 36: Circulatory Systems

Set 37: Respiratory Systems

Set 38: Excretory Systems and the Homeostasis of Internal Fluids

Set 39: Endocrine Systems

Set 40: Animal Reproduction and Development

Set 41: Immune Systems

Set 42: Animal Behavior

Set 43: Ecology and the Physical Environment

Set 44: Population Ecology

Set 45: Community Ecology

Set 46: Ecosystem Ecology

Set 47: Biodiversity and Conservation Biology

Set 8 Cell Communication

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Set 8 Cell Communication

(Multiple Choice)

Free

When epidermal growth factor binds to a(n)_______ receptor,the receptor phosphorylates itself,triggering a signal transduction pathway.

A)G-protein coupled
B)enzyme-linked
C)mechano
D)ligand-gated ion channel
E)thermo

Answer

(Multiple Choice)

Free

What happens immediately after a signaling molecule binds to its G-protein coupled receptor (GPCR)?

A)The signaling molecule enters the cell through its GPCR and travels to the nucleus,where it acts as a transcription factor.
B)The G protein exchanges GTP for GDP,and becomes inactivated.
C)The G protein exchanges GDP for GTP,and becomes inactivated.
D)The G protein exchanges GTP for GDP,and becomes activateD.
E)The G protein exchanges GDP for GTP,and becomes activated.

Answer

(Multiple Choice)

Free

A cell secretes a growth factor that binds to receptors on its own membrane preventing it from proliferating.This is an example of

A)direct intercellular signaling.
B)autocrine signaling.
C)endocrine signaling.
D)paracrine signaling.
E)contact-dependent signaling.

Answer