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Sperm cells are reproductive cells that possess a higher number of mitochondria that typical asexual cells. They are flagellated (a single flagella). Similarly, at one stage in their life cycle of plasmodial (Acellular) slime molds (myxomycetes), these organisms consist of a spreading, slimy, multinucleate mass called a plasmodium that moves slowly over its substrate (e.g., a rotting log) engulfing food and growing as it does so. Eventually, the plasmodium develops stalks that produce and release spores. If the spores land in a suitable location, they germinate forming single cells that move by both flagella and pseudopodia. These fuse in pairs and start forming a new plasmodium.
So in one paragraph, you can focus on the how free-living cells move, in particular by flagella, and how typically it is reproductive cells of an organism that are provided with this evolutionary advantage. Talk about its structure, what it is made out of, and how they differentiate between one species and another. Talk about the advantages and disadvantages of having a flagella and what medium it requires to move in the environment it is in.
This is a perfect time for a transition on your next major paragraph talking about ciliated cells. Ciliated cells (those with extensions) are made up of similar components as the flagella. As a result, you won't have to reintroduce all those terms you spoke about in the previous paragraph. You can talk about what they sensitive to (i.e. cold air), and talk about their advantages and disadvantages. What are their purpose in a tracheal cells. Interestingly, paramecium have ciliated structures also. These two cells should be organized in the same paragraph. Simple cilia cover the body, which allow the cell to move with a synchronous motion (like a caterpillar) at speeds of approximately 2,700?m/second (12 body lengths per second). There is also a deep oral groove containing inconspicuous compound oral cilia (as found in other peniculids) used to draw food inside. So, in animals, cilia found in the trachea is to push out debris while in unicellular organisms, it is a mode of movement or drawing in food.
Your next paragraph should move into microvilli of the intestines. Like cilia, microvilli are cellular membrane protrusions that increase the surface area of cells, and are involved in a wide variety of functions, including absorption, secretion, cellular adhesion, and mechanotransduction. However, they are technically not true cilia. Talk about their anatomy and how they belong to a larger structure (the villi) and how their surface area aids in the absorption of nutrients. On the contrary, pancreatic acinar cells are functional units of the exocrine pancreas. They synthesize, store, and secrete inactive proforms of digestive enzymes into the lumen of the acinus. So you see the difference here? In this paragraph we are comparing and contrasting between different epithelial cells, one secretes while the other absorbs.
I hope this tutorial helped!
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