There are 8 main cells you need to know:
Root hair cells: have a tiny hair like structure. shaped like a sledge hammer.
Palisade Cells: column shaped. packed with chloroplasts for photosynthesis.
Xylem cells: long, thin and hollow. contain no cytoplasm. transport water through stem and root.
Nerve cells: (neurones) long slender axons which carry nerve impulses up to a metre.
Egg Cell: (Ovum) larger than other cells. carrys food reserves for the developing embryo.
Sperm Cell: has a tail to travel from the Vaigna to the Ovum.
Red blood cell: no nucleus. packed full of haemoglobin in order to carry lots of oxygen.
White blood cells: can change shape to engulf and destroy microbes which have invade the body.