Module 1 - Cells as the Basis of Life Flashcards
TOPIC 1 -> Cell Structure
Inquiry question: What distinguishes one cell from another? (CARDS 1-
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cell - definition
the smallest structural and functional unit of a living organism - the building blocks of life that make up every living organism
organelle - definition
membrane-bound compartments within the cell, each does a different job (function) that helps keep the cell alive
NUCLEUS, structure and function
organelle which contains the cell’s genetic information, which is needed for growth, repair and proper functioning
contains chromosomes (made of DNA)
‘cell’s control room’ - responsible for telling the cell what it needs to be doing
surrounded by NUCLEAR MEMBRANE, has gaps called NUCLEAR PORES
also contains NUCLEOLUS
NUCLEOLUS
made of proteins and ribonucleic acid (RNA), where the RIBOSOMES are made
RIBOSOMES (technically not - not membrane bound)
‘blobs’ made of of ribosomal RNA (rRNA) and protein
significance: they make proteins
can either be found floating in cytoplasm or (mostly) connected to the ENDOPLASMIC RETICULUM
ENDOPLASMIC RETICULUM (ER)
connected to nucleus in certain places, a network of flattened, interconnected membranes, creates a kind of ‘tunnel’ through which substances can move.