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    Basic questions on cell biology

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    1. Glycolysis occurs in the ________, the Krebs cycle occurs in the ________, and the electron transport chain occurs in the ________ membrane.
    A) mitochondria; mitochondria; mitochondrial
    B) cytoplasm; mitochondria; mitochondrial
    C) mitochondria; cytoplasm; plasma
    D) cytoplasm; cytoplasm; plasma
    E) cytoplasm; mitochondria; plasma

    2. Name the three major components of a homeostatic control system and tell briefly the function of each component.

    3. Cellular respiration releases chemical energy and is therefore endergonic. True or False

    4. Which compartment of the chloroplast contains chlorophyll?

    5. Why is water a good solvent in which substances can dissolve?

    6. Are plant cells have walls made of cellulose?

    7. Are plants are allotrophic?

    8. Chloroplasts have a double membrane system and unique circular DNA. In this way, they are similar to mitochondria

    9. Photosynthetic electron transport, like cellular respiration electron transport, is a series of redox reactions.

    10. Explain negative feedback and give one example in the human body.

    11. Photosynthesis is the conversion of light energy to food energy.

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    Solution Preview


    I am glad to help you with these problems. I am going to try to do so, however, so that you learn the material and I am not just giving you the answers. I am going to do so by suggesting websites you can visit to learn about the subject and then help to make suggestions for your answer.
    QUESTION 1: see the attached diagram, and read below:

    Glycolysis, Kreb's cycle and Electron Transport Chain are all part of the three-stage process that breaks down sugars in our cells, a process called "Cellular Respiration". Sugar, in the form of glucose, enters the cell to the CYTOPLASM where it is broken down by the process of GLYCOLYSIS. The products of glycolysis enter the MITOCHONDRIA where the KREB's CYCLE takes place. The ELECTRON TRANSPORT CHAIN follows in the INNER MEMBRANE of the MITROCHONDRIA.
    QUESTION 2: please read the "control mechanisms" section of this wikipedia site: http://en.wikipedia.org/wiki/Homeostasis#Control_mechanisms

    Try to use common sense here. Your body wants to stay at a relatively stable temperature at all times, right? So how is your body going to react if temperature drops dangerous. First, there must be a mechanism that senses the low temperature (this is called the RECEPTOR). That information then must be passed along to some central information center in our brain that ...

    Solution Summary

    Eleven specific questions related to cell biology, animal vs. plant, photosynthesis, homeostasis, cellular respiration are addressed here