prokaryotic and eukaryotic cells except (a) mitochondrion (b) ribosome (c) cytos
ID: 279848 • Letter: P
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prokaryotic and eukaryotic cells except (a) mitochondrion (b) ribosome (c) cytosol (d) plasma membrane 2. What is the maximum total magnification of light croscopy? 00x 5X 40x 3. The microscopy that scans the specimen with a focused laser beam to obtain a series of two- dimensional optical sections, which can be used teo reconstruct an image of the specimen in three dimensions TEM SEM luorescence (b) Confocal 4. The organelle found in all eukaryotic cells that confines the DNA and keeps them separated from the cytoplasm is. a) lysosomes b ribosomes e) nucleus ndosome 5. Which of the following organelles has both an outer and an inner membrane? (c) nuclear envelope olgi apparatus (a) rough ER ) lysosome 6. The scientific name of flat worm, which is an excellent experimental organism used to study developmental biology, is (a) E. coli (b) D. melanogaster cS cerevisiae (a) C elegans 7. Which subatomic particles contribute to the positive charge for any given element? (a) protons (b) neutrons c) electrons d protons and neutrons 8. The isotopes of an element is due to the differen umber of (aelectrons (c) protons (d) ions b) neutrons 9. An ionic bond between two atoms is formed as a result of the (@) sharing of electrons. () sharing of proton (b) transfer of electrons (d) transfer of proton (a) 1 (b) 3 (c) 2 (d (a) nucleosides (c) nucleotides 0. What is the valence of carbon 11. DNAs are polymers of -moleculesExplanation / Answer
2. d) the maximum total magnification that can be achieved by a light microscope is 1000X.
3. b) confocal microscope consists of a scanning and capturing multiple two dimensional images of a specimen and reconstructing it to form a three dimensional image. This process is known as optical sectioning.
4. c) Nucleus is a membrane bound organelle which contains the genetic material of the cell that includes DNA and seperates it from the rest of the cytosol.
5. c) the nuclear envelope, which surrounds the nucleus and is composed of two membranes, an inner membrane and an outer membrane.
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