Help Please Biology Question?
How does the DNA in a eukaryotic cell differ from the DNA in a prokaryotic cell? The DNA of a eukaryotic cell contains different bases than the DNA of a prokaryotic cell. The DNA of a eukaryotic cell is enclosed in a nucleus, and the DNA of a prokaryotic cell is not. The DNA of a eukaryotic cell is single-stranded, and the DNA of a prokaryotic cell is double stranded. The DNA of a eukaryotic cell forms a loop, and the DNA of a prokaryotic cell forms multiple rods. --------------------------------------------------------------------------------2. A scientist uses an electron microscope to observe a prokaryotic cell. Which structure does she most likely see? cell wall chloroplast nucleus rough ER --------------------------------------------------------------------------------3. One major function of the pancreas is to produce enzymes that help break down food molecules in the small intestine. Which organelle would you expect to be more abundant in pancreas cells than in other body cells? chloroplasts mitochondria rough ER smooth ER Which statement best explains why the cell represented in the diagram can produce sugars? It has mitochondria. It has a cell wall. It has chloroplasts. It has a nucleus. --------------------------------------------------------------------------------6. A particular cell contains a greater number of free ribosomes than ribosomes attached to rough ER. What can you conclude about the cell? It produces many proteins but cannot package them. It produces fewer proteins for export than for use in the cell. It produces many proteins but cannot modify the amino acid sequences. It can produce proteins but cannot move the proteins to the cell membrane. --------------------------------------------------------------------------------7. Where would you expect to find a cell that had a very large number of mitochondria? blood muscles nerves skin --------------------------------------------------------------------------------8. A lab technician places a euglena into a sample of seawater. What will most likely happen to the euglena? It will swell because of passive transport of water. It will lose water through osmosis and shrivel. It will use energy to move water into the cell. It will use active transport to take in extra salt. --------------------------------------------------------------------------------
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