AP Bio Cell Notes Flashcards
First 4 cells
Cell membrane or also called
Plasma membrane or phospholipid bilayer
Cell membrane is the ________ part of cell to help maintain _____.
Outer, homeostasis
Cell membrane is ___________, allows certain things to go in or out of cell due to its ________
Selectively permeable, nonpolar interior
What makes up cell membrane
Phospholipid
Carbohydrates
Steroids
Proteins
What are two types of proteins
Peripheral and integral
Peripheral proteins
Attached to inner or outer surface of cell membrane, used in recognition of materials
Integral proteins
Extend through both layers of cell membrane transport material in or out of cell
Phospholipid
2 layers main component
Carbohydrate
Helps cells stick together serve as recognition sites on cell for hormones viruses and rH factors
Steroids provide
Strength
Cell membrane described as _____
Fluid mosaic model
Fluid
Parts aren’t stationary and move freely
Mosaic
Made of lots of pieces PUT together
Region in cell from _____ to _____. Molecule??
Nucleus, cell membrane
Cytoplasm
Contains all organelles in cell
Cytoplasm
Gel like aqueous fluid _____ cell where minerals salts and organic molecules are _____. Molecule??
Inside, dissolved
Cytosol
Largest structure in animal cells
Nucleus
Where ____ is located and stored and where ___ is transcribed or copied
DNA, RNA
Parts of nucleus
Nuclear matrix
Nuclear envelope
Nuclear pores
Nucleolus
Protein skeleton helps maintain the nucleus shape
Nuclear matrix
Double membrane that surrounds nucleus
Nuclear envelope
Small holes in nuclear membrane where RNA passes from nucleus to cytosol
Nuclear pores
Inside nucleus where ribosomes assembled before moved to cytosol
Nucleolus
DNA can exist in two forms
Chromatin and chromosomes
Chromatin
Thin strands of DNA in nucleus; state when DNA exists in nucleus most of time
Condensed chromatin state of dna during cell division
Chromosomes
