Eukaryotic cells have a ribosome. a) 60S; 70S b) 705; 80S Oc) 805; 70S d) 70s; 60S _size ribosome, while prokaryotic cells have a size

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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**Ribosome Size in Eukaryotic and Prokaryotic Cells**

Eukaryotic cells have a _____ size ribosome, while prokaryotic cells have a _____ size ribosome.

**Options:**
- a) 60S; 70S (Selected)
- b) 70S; 80S
- c) 80S; 70S
- d) 70S; 60S

**Explanation:**
Ribosomes are essential cellular organelles responsible for protein synthesis. The size of ribosomes in eukaryotic and prokaryotic cells differs significantly. Eukaryotic cells typically contain 80S ribosomes, composed of a 60S large subunit and a 40S small subunit. In contrast, prokaryotic cells contain 70S ribosomes, which are made up of a 50S large subunit and a 30S small subunit. The "S" (Svedberg unit) is a measure of the ribosome's rate of sedimentation during centrifugation, reflecting its size and shape.
Transcribed Image Text:**Ribosome Size in Eukaryotic and Prokaryotic Cells** Eukaryotic cells have a _____ size ribosome, while prokaryotic cells have a _____ size ribosome. **Options:** - a) 60S; 70S (Selected) - b) 70S; 80S - c) 80S; 70S - d) 70S; 60S **Explanation:** Ribosomes are essential cellular organelles responsible for protein synthesis. The size of ribosomes in eukaryotic and prokaryotic cells differs significantly. Eukaryotic cells typically contain 80S ribosomes, composed of a 60S large subunit and a 40S small subunit. In contrast, prokaryotic cells contain 70S ribosomes, which are made up of a 50S large subunit and a 30S small subunit. The "S" (Svedberg unit) is a measure of the ribosome's rate of sedimentation during centrifugation, reflecting its size and shape.
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