Cell Biology Final Exam Complete Questions And Answers This is considered the fundamental unit of life CORRECT ANSWERS Cell What correctly represents the defining characteristic of a eukaryotic cell? CORRECT ANSWERS The presence of a membrane bound nucleus A human blood cell is an example of a(n) ______ cell? CORRECT ANSWERS Eukaryotic This structure is found outside of the plasma membrane in plant cells. CORRECT ANSWERS Cell wall Which of the following is not a corollary of the cell theory? CORRECT ANSWERS A. All cells are fundamentally alike in chemical composition *B. All cells have nuclei
- All cells store information in the same way
- All cells arise from other cells through cell division
This organelle functions to move molecules from on location to another in the cell CORRECT ANSWERS Vesicle This individual first discovered cells through the use of a primitive microscope in 1665.CORRECT ANSWERS Robert Hooke What microscope allows you yo visualize the smallest image? CORRECT ANSWERS Transmission electron microscope Archaea are differentiated from bacteria by what trait? CORRECT ANSWERS They are found in highly unusual environments (such as hot spring) These individuals were responsible for the cell theory. CORRECT ANSWERS Schleiden and Schwann These organelles serve as the sight for photosynthesis. CORRECT ANSWERS Chloroplasts What correctly states the central dogma of molecular biology? CORRECT ANSWERS DNA is converted to RNA and RNA is converted to protein.This base if found in molecules of RNA but not molecules of DNA. CORRECT ANSWERS Uracil 1 / 2
What is Avogadro's number? CORRECT ANSWERS 6.02x10^23 What type of chemical bond leads to a net charge on the atoms found in the bond?CORRECT ANSWERS Ionic bond What is the definition for molecular weight? CORRECT ANSWERS The number of protons and neutrons present in the element.Oxygen (with a total of 8 electrons) can form how many covalent bonds? CORRECT
ANSWERS 2
In this type of reaction, 2 molecules are linked together and water is produced.CORRECT ANSWERS Hydrolysis Which portion of an atom has an overall neutral charge? CORRECT ANSWERS Neutron This region of an amino acid is unique among the 20 different amino acids. CORRECT ANSWERS Side chain The molecular weight of sodium chloride is 58 g. What weight of sodium chloride would you add to 6 liters of water to make a solution with a final molarity of 0.3? CORRECT ANSWERS 104.4g A molecule which contains regions that are both hydrophobic and hydrophillic is called a(n) ______ molecule? CORRECT ANSWERS Amphiphatic What correctly defines the atomic number of an atom? CORRECT ANSWERS The number of protons in an atom This stage of mitosis is marked by the alignment of the chromosomes along the midline of the cell? CORRECT ANSWERS Metaphase The process of cytokinesis is accomplished by what structure? CORRECT ANSWERS Contractile ring What correctly shows the events that occur during the G1/S checkpoint? CORRECT ANSWERS The integrity of the DNA and the environmental conditions are checked.During the cell cycle, when does DNA replication take place? CORRECT ANSWERS S phase The chromosome pairs separate during this phase of mitosis. CORRECT ANSWERS Anaphase
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