2.4 & 2.5 cell structure - eukaryotic animal and plant cells 🌱

eukaryotic animal and plant cells

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