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Why don’t animal cells have a cell wall or a central vacuole?
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How do bacteria generate ATP without mitochondria? |
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- Which of the following cell organelle actively participates in animal apoptosis? Question 1 options: a) Vacuoles b) Chloroplast c) Nucleus d) MitochondriaHow many mitochondria are in a yeast cell?Give the respective structural descriptions and functions of the following: 1. Cell Membrane 2. Nucleus 3. Nucleolus 4. Smooth Endoplasmic Reticulum 5. Rough Endoplasmic Reticulum 6. Nuclear Membrane 7. Mitochondria 8. Golgi Apparatus 9. Cytoskeleton
- You are studying how a newly discovered virus in bats enters their cells. When you examine cells that have taken up the virus, you find virus particles inside clathrin-coated vesicles. What membrane transport mechanismis the virus using to get inside the bat cells? Diatoms are protists that have complex glassy structures in their cell walls. These structures form within the Golgi apparatus. How do these structures reach the cell wall without having to pass through the plasma membrane? What is the evolutionary advantage of bacteria that have flagella vs. bacteria that do not?How are the nucleus , the ribosomes , endoplasmic reticulum and Golgi apparatus related? How are the mitochondria and the chloroplast similar? How are the mitochondria and the chloroplast simlar? How are the smooth endoplasmic reticulum and the cell membrane related? Which organelles are not membrane bound? How are prokaryotic and eukaryotic cells similar? How are prokaryotic and eukaryotic cells different?What is the name of the semi-permeable structure that creates tight compartments surrounding cellular protoplasm?
- The Amoeba, the paramecium, and the euglena ( These are unicellular Protozoans) produce electrical impulses that travel along their cell membrane. This is possible because they are specialized to use properties exhibited by all cells. These properties include ... A) Separation of the fluid environments inside and outside the cell B) Active transport of Na+ out of and K+ into the cell. C) Portal proteins that allow diffusion of Na+ and K+ back in to the cell D) Maintaining unequal Na+ and K+ concentrations on the two sides of the membrane. E) All of these are true Explain whyWhich cytoskeletal element mediates cell crawling?Which is NOT a characteristic of mitochondria? They: A) have two membranes. B) are the site of cellular aerobic respiration. C) have a true nucleus. D) contain their own DNA and ribosomes. E) the material inside their inner membrane (the cellular matrix) is their own cytoplasm.
- Which of the following terms is not associated with te cell membrane of animal cells? a.) protein channels b.) cholesterol c.) hydrophilic tails d.) fluid mosaicWhich of the following is a feature common to all three components of the cytoskeleton?Which of the following is not present in animal cells? [A] Cell walls[B] Mitochondria[C] Ribosomes[D] Cytoplasm
