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Published byAngelica Hodge Modified over 6 years ago
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Cell Parts for Protein Production: Nucleus, Ribosomes, & More…
Do Now OBJECTIVE: Describe the structure and function of the eukaryotic nucleus and ribosomes TASKS: 1. What is a clone? When was the first adult mammal cloned?
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Should we be afraid of the clones?
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The Nucleus The nucleus is a small sphere that holds almost all of a eukaryotic cell’s DNA.
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Structure & Function Structure: spherical lipid membrane (like cell membrane) that contains DNA. Function: Stores DNA, controls cell activity
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It is found ONLY in EUKARYOTIC cells.
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Dolly the Sheep Dolly was the first clone of an adult mammal ever made. Dolly was born in 1997, she died a few years later, younger than usual for a sheep. So what does a cloned sheep have to do with a cell nucleus?
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When adult animals are cloned, it is by adding a nucleus from a cell to a new egg cell without a nucleus.
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How to Make a Sheep. The Point: Change the nucleus = change the organism
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nuclear envelope: A lipid bilayer that surrounds the nucleus nuclear pores: openings in the nuclear envelope
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Most of the inside of a nucleus is made up of chromatin, which is a mix of DNA and related proteins.
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The nucleolus is a small dark part inside a nucleus where ribosomes are made.
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Find those parts: Nuclear Envelope Nuclear Pores Chromatin Nucleolus
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SUPER IMPORTANT CELL PARTS: NUCLEUS
STRUCTURE: Sphere in the center of a cell that contains all of the DNA FUNCTION: Controls cell functions & stores genetic information
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