02. Nucleus and mitochondria

Eukaryotic + Prokaryotic definitions, Nucleus, Mitochondria

What are eukaryotic cells?

Have a nucleus and membrane bound organelles

What are prokaryotic cells?

Don’t have a nucleus or membrane bound organelles

What are the parts of a nucleus?

Nucleoplasm, nuclear envelope, nuclear pore (gap), nucleolus

What does a nuclear pore do?

Allows ribosomes + mRna to exit

What do nuclear envelopes do?

Separates cytoplasm from nucleoplasm

What is nucleoplasm?

Fluid that contains DNA + proteins

What does the nucleolus do?

Produces ribosomes, rRNA and tRNA

What cells have a nucleus?

Animal and plant

What are the parts of a mitochondria?

Outer and inner membrane, crista (s) cristae (p), matrix, loop of DNA, ribosomes 70s

What is a crista?

An inner fold (which affects surface area)

What is the matrix?

Fluid center

What does the loop of DNA do?

Self replication

What does the ribosomes do?

produces proteins

What is the function of the nucleus

Contains DNA which codes / controls protein synthesis, DNA replication occurs here, transcription produces mRna templates

What is the function of the mitochondrion

ATP synthesis by aerobic respiration

What are the names for mitochondria?

Mitochondrion (s) mitochondria (p)