Topic 2.1 Eukaryotic Cells Flashcards
Membrane
Controls what goes in and out of the cell
The protoplasm
The light in the microscope to observe cells
The nucleus
Made of of DNA and is usually the largest organelle and controls chemicals that can pass in and out of the cell
Mitochondria
Powerhouse of the cell. It has its own genetic material
Centrioles
Near the nucleus.
Cytoskeleton
Made up of microfilmemts
Vacuoles
Not a permanent feature in animal cells can be form and lost as needed
Protoplasm
Cytoplasm and nucleus combined
Ultra structure
Detailed organisation only visible in an electron microscope
Intracellular
Inside the cell
Chromation
Combined DNA bonded in the protein nucleus
Cristate
Innor membrane mitochondria large surface area for aerobic respiration
Eubacteria
True bacteria
Spindle
Over lapping protein microtubes running length of the cell
Microfiliments
Protein fibres that make up the structure of the sk cytoskeleton
Microtubes
Tiny protein tubes
80s ribosome
Ratio 1:1
70 ribosomes
RNA:70 ribosomes
2:1
Rough endoplasmic
Secrete materials produces enzymes wmd found in the gut
Smooth endoplasmic
Found in the liver and involved in synthesis and transport and helps cholesterol
Golgi apparatus
Close link but not joined to the RER. Tracked throughout the body and protein is bought here
Lysosomes
Warm out cells are distorted. Found in the cytoplasm and can self destruct
Exocytosis
Energy reducing prosess with cell membrane released to the outside of the cell
Apoptosis
Cell suicide
Cell membrane
Makes walls flexible and a primary wall structure
Plasmodesmata
Like a door so the cells can communicate with one another
Suberin
Cellulose cell walls cork tissue that makes then impermeable
Lignin
Cell wall in wood that makes it impermeable
Middle lamella
First layer of plant cell go be formed when plant cell divides
Pectin
Polysaccharide that’s holds the cell wall of the neighbouring plant cell together
Primary cell wall
Very flexible plant cell to form cellulose
Secondary cell wall
Order plant cell in the cellulose hsve built up different angles
Plasmodesmata
Cytoplasmic between the plants cells that allows the to communicate with one another
Symplasts
All the material contains with the surface in the cell membrane
Permanent vacuoles
Filled with sap and water is moved by osmosis kept ridged by the cytoplasm against the cell wall of
Chloroplast
Contain chlorophyll. Makes plants photosynthesis, not all plants contain chloroplast
Amyloplasts
Develop leucoplasts, colourless and can be converted into glucose
Cell sap
Aqueous solution that is filles the permanent vacuole
Tonoplasts
Specialised membrane that controls movement
Tissue
Epithelial tissue
Connective tissue
Muscle Tissue
Nurveous tissue
Organs
A group of tissue grouped together into a structure e.g heart, brwin
Systems
A group of organisms working together. E.g digestive system