Friday, October 24, 2014
weekend hw and lab grade offer
If you got a grade of less than 80 on the lab, you can rewrite it in your lab book and make corrections, for a grade of 10 more points on your score up to a maximum of 80 points. It must be completed and handed in Monday.
Here are some homework questions on organelles.
Cell organelle ?’s
1. A cell has a defect in an organelle, such that it can’t make phospholipids. Therefore it never gets to divide. Which organelle is defective?
2. A cell that makes a lot of oils would have more of these organelles?
3. A cell that has to make a lot of enzymes would need them folded into a certain conformation and this would happen within the __________?
4. Nuclei appear in the first fractionation process and ribosomes in the last in a differential centrifugation process, therefore nuclei must be a different ___ or ______ than ribosomes.
5. A student wants to look at the surface of a mitochondrion, the proper microscope to use is a ____________.
6. Which is not found in or on the plasma membrane
a. carbohydrate sidechains b. chemical receptors c. Protein channels d. cholesterol e. all are in or on it
7. Limitations to the size of a cell is due to
a. surface area to volume ratio b. the ability of the cell membrane to service the cell c. the ability of the plasma membrane to diffuse in nutrients and get rid of wastes d. the a limit of the ability of DNA to be copied by mRNA E. all of these
8. A eukaryotic cell is not noted to have
a. a nucleus b. a membrane bound organelle c. a mitochondrion D. a nucleoid region E. ribosomes
9. All eukaryotic cells have
a. chloroplasts b. cell walls c. flagella D. cilium E. nucleus
10. All cells have these things in common, except…
a. cell membrane b. cytosol c. circular chromosomes d. ribosomes E. all cells have these
11. Put these in order by size largest to smallest
Frog egg virus eukaryotic cell bacterium atom plasmid
12. Which of these are not found in a plant cell?
A. capsule B. chloroplast C. central vacuole D. cell wall of mostly cellulose E. palsmodesmata
13. Which organelle convert metabolic waste hydrogen into less harmful substances?
14. Which organelle would break down ibuprofren so it does not build up in the body?
15. Which organelle turns your lunch into ATP?
16. Which organelle is common to all cells and is found in the cytoplasm and on the ER?
17. Which two organelles are responsible directly to make proteins?
18. Which organelle has the instructions to make proteins/
19. Which organelle is MRNA first made in?
20. Which organelle contains both microtubules and microfilaments?
21. which two organelles have 9 doublets of microtubules surrounded by two microtubules in the center?
22. which is longer of the above two?
24. Which organelle makes the proteins responsible for the synthesis of lipids, like a steroid?
25. Which organelle packages and tags chemicals to be exported by exocytosis/
26. Which organelle makes the cell turgid after a wilted plant is given a drink of water.
27. Which organelle did the vesicle containing testosterone last come from before traveling to the cell membrane on a microtubule?
28. Thylakoids provide the surface area for what energy harvesting organelle?
29. The pancreas is responsible for the chemicals necessary for the hydrolysis of food molecules in the chime of the small intestine and therefore has a lot of these small cell components?
30. A white blood cell is brought into a protest enclosed in cell membrane a process called phagocytosis or endocytosis, which organelle will make it usable as food?
31.Centrioles are in the centrosome region of an animal cell, that is a ___________ organizing center and help in the cell division.
32.The lining of the trachea, lack these cell extensions when they are damaged by smoking called_______. The result is the inability to remove debris trapped by mucus in the trachea.
33. These are responsible for the ability of chemotaxis by sperm, and the egg lacking them disallows chemotaxis by the egg.
34. Actin is associated with which component of the cytoskeleton?
a. microtubules b. microfilaments c. palsmodesmata d. cable junctions intermediate filaments
35. Cytoplasmic streaming of chloroplasts are due to the work of this cell component?
a . microtubules b. microfilaments c. plasmodesmata d. cable junctions intermediate filaments
36. The Cleavage of a cell during cell division is due to this cell component? a . microtubules b. microfilaments c. plasmodesmata d. cable junctions intermediate filaments
37. The movement of chromosome to opposite poles during cell division is due to this cell component?
a . microtubules b. microfilaments c. plasmodesmata d. cable junctions intermediate filaments
38. Dyenin proteins are associated with the movement of …
a.actin and myosin proteins in muscle cells b. microtubules and cilia movement c. microtubules and flagella movement d. movement of bulk chemicals on the microtubules of the cytoskeleton E. all of these
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