Studied by 16 people
what is the feature and structure of smooth endoplasmic reticulum
network of membranes, lipid and carbohydrate synthesis and storage
what is the feature and structure of rough endoplasmic reticulum
network of membranes with ribosomes, synthesis and transport of proteins
what is the feature and structure of nucleolus
area within nucleus, proteins and RNA, rRNA and proteins form ribosomes for protein synthesis
what is the features of nucleus
coded genetic information, DNA molecules, control metabolic activities of cell, synthesis
what is the feature and structure of mitochondrion
double membrane, inner folded, inside matrix, enzymes for aerobic respiration
what are chromatins
formed by histones, coil condenses form chromosomes
what are ribosomes for
site of protein synthesis
what are peroxisomes for
protect cell from own hydrogen peroxide, into water and oxygen
what are nuclear pores for
allow molecules move in out example RNA
what are the three parts of cytoskeleton
microtubules, microfilaments, centrioles (support)
what is the feature and structure of centriole
made of microtubules, two form centrosome, organise spindle fibres
what is the role of microtubules
form tubes, shape of cell, movement of cells
what is the role of cytosol
mostly water, proteins, most cellular metabolism occur
what is the feature and structure of golgi apparatus
formed of cisternae, no ribosomes, modify proteins, packing proteins into vesicles
what is the role of lysosomes
special form of vesicle, have hydrolytic enzymes, break down waste material, cell death/apoptosis
what is the role of microfilaments
contractile fibres from actin, cell movement and contraction during cytokinesis (cytoplasm divide)
what is the role of transport vesicle
transport protein from RER to golgi apparatus
what is the role of secretory vesicle
transport from golgi apparatus to plasma membrane
what is the feature and structure of plant cell wall
made of cellulose, freely permeable, give shape, protect against pathogens
what is the role of permanent vacuoles
membrane lined sacs in the cytoplasm containing cell sap, maintain turgor,rigid framework, tonoplast selectively permeable, not permanent in animal cells
what is the role of chloroplasts
responsible for photosynthesis, not found in roots, double membrane structure,
what is DNA like in eukaryotic cells
exist as multiple chromosome which are supercoiled and wrap around a number of histones (proteins), this makes chromatins which coil and condense into chromosomes
what is the feature and structure of cilia
small hair like structures found on cell surface membrane of some animal cells, outer membrane and a ring of nine pairs of protein micro tubules, single pair in the middle
how does flagellum move in eukaryotic
like cilia but longer, microtubules contract to make flagellum move
what is the role of thylakoids
fluid-filled membrane sacs found within chloroplasts
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