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Click here to enter text. Kit Code (located on the lid of your lab kit): Click here to enter text. Pre-Lab Questions: “1 . Identify the major similarities and differences between prokaryotic and eukaryotic cells. ” The distinction between prokaryote and eukaryote is considered to be the most important distinction among groups of organisms. Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryote and eukaryote include the presence of mitochondria and chloroplasts, the ell wall, and the structure of chromosomal DNA.

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The most fundamental difference is that eukaryote do have “true” nuclei containing their DNA, whereas the genetic material in prokaryote is not membrane-bound. “2. Where is the DNA housed in a prokaryotic cell? Where is it housed in a eukaryotic cell? ” In Eukaryotic cells (e. G. Animal and plant cells), the DNA is held within the nucleus. But in Prokaryotic cells (e. G. Bacteria cells), the DNA floats around the cell freely as prokaryotic cells do not contain a ‘true nucleus’.

“3. Name three structures which provide support and protection in a eukaryotic cell. Cytoplasm contains molecules, ions, water, and every cell organelle, except the nucleus. The cell wall lies outside of the cell membrane of plants. Cell walls function to provide structure, support, and protection for plant cells. The nucleus acts like a safe. Within the confines of the nucleus lies the cell’s DNA, protected within a nuclear membrane, also called the nuclear envelope, which is as tough as the membrane surrounding the entire cell. Experiment 1: Cell Structure and Function Post-Lab Questions “1 . Label each of the arrows in the following slide images: ” A- ribosome

B- nucleus “2. What is the difference beјen the rough and smooth endoplasmic reticulum? ” The rough endoplasmic reticulum is with ribosome attached. Smooth endoplasmic reticulum has no rissoles. “3. Would an animal cell be TABLE to survive without a mitochondria? Why or why not? ” Without mitochondria (singular, mitochondria), higher animals would likely not exist because their cells would only be TABLE to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration “4. What is the function of a lissome? ”

Lissome are cellular organelles that contain acid hydroxyls enzymes that break down waste materials and cellular debris. They can be described as the stomach of the cell. Lissome digest excess or worn-out organelles, food particles, and engulfed viruses or bacteria Experiment 2: Exploring Cell Size TABLE 2: Results from Surface Area to Volume Experiment Block Dimensions Surface Area (CM) Volume (CM 3) Time Required for Complete Color Change Distance of Diffusion CACM 1 CM 611 4 cry-no CACM 5 corn CACM 133 3 “1 . How did the surface area affect the diffusion of the block? What about the illume?

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