1 What is eukaryotic cella Eukaryotic cell refers to cell that has eukaryotic nucleus(nucleus that is surrounded by nuclear membrane)Its chromosome number is more than one and it is able to carry out It can also carry out protoplasm movement and Photosynthesis and oxidation and phosphorylation are carried out by chloroplasts and mitochondria Except for the cells of bacteria and blue-green algae，all the animal cells and plant cells are eukaryotic Organisms made up of eukaryotic cells are called eukaryotic In the nucleus of eukaryotic organisms，proteins like DNA and histone，etc together make up the structure of The nucleolus can be observed in the The memebrane system inside the cytoplasm are very advanced，including celluar organelles like the endoplamic network，Golgi apparatus，mitochondria and cytolysosome，They implement specific functions b endoplasmic reticulum:a continuous pipe system surrounded by The surface of rough endoplasmic reticulum(RER) contains ribosomes which take part in the synthesis and processing of proteins;there is no ribosome on the surface of smooth endoplasmic reticulum (SER) to take part in the synthesis of Membrane-bound organelles or membrane-bound (这句话不完整)C Memerane-bound organelles refer to all the organelles inside the cytoplasm that have membrane structures，including nucleus，endoplasmic reticulum，Golgi apparatus，cytolysosome，vesicles，mitochondria，chloroplasts and peroxide catalase，Since they are all closed membrane structures，they have some space d Lysosome is an organelle inside the cytoplasm that is surrounded by single fatty protein membranes and contains a series of acidic It is an organelle inside the cell that has single membrane Lysosome contains many types of hydrolases which can break down many Lysosome is likened to the enzyme warehouse or digestive system inside the Lysosome has two functions:one is that it can fuse with food vesicles，digest large particles like food engulfed by the cell or pathogenic bacteria，etc into large molecules，and eject residues out of the cell;the other function is that druing the celluar differentiation process，some old organells and molecules，etc are engulfed into and digested by This is due to the need of the organism to re-organise 2 describe red blood cellsWhen the red blood cells mature，it no longer has any membrane structures like nuclear memebrane and mitochondrion 3 Eukaryotic red blood cellsa Reb blodd cells are rounded，nucleusless cells within the human bone marrow which are biconcave and thick at the They have an average radius of 5 mirometers，a thickness of 7 micrometers，an average capacity of 83 cube micrometers，and an average surface area of approximately 145 square About 44% of the blood 's capacity are cellular components，most of which are red blood In one microliter of blood，males have an average of 5000 thousands，females have an average of about 4600 Other than water，haemoglobins are the main components of red blood
