BIO 101 – HUMAN BIOLOGY Midterm Exam I – Fall 2007 Please fill in your name and (SOLAR) ID number on your answer sheet before starting. Do not write anything under the column marked birthdate!!!!! Keep the opscan sheet that came with your test and do not use ANY other opscan form or you risk a misgrading. Answers to the multiple choice questions must be filled in on the answer sheet with a #2 pencil. There are 40 multiple choice questions. Answer sheets will be collected when time is called at 8:10
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membrane and nucleus i. Mitochondria- convert energy stored in food to energy the cell can use to live and function j. Endoplasmic reticulum- (ER) in an organelle w/ a network of membranes that produces many substances k. Golgi apparatus- receives proteins and other newly formed materials from the ER‚ packages them and distributes them to other parts of the cell l. Vacuoles stores water food and materials m. Lysosomes- saclike‚ brakes down large food particles into
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components of the walls of bacterial cells Granulocytes contain nuclei with two or more lobes including – neutrophils‚ eosinophils and basophils. These terminally differentiated cells only have a life span of a few days. They have poorly developed Golgi complexes and rough ER and they contain only a few mitochondria. Leukocytes depend largely on glycolysis for their low energy requirements this allows them to function in tissue which has little oxygen present e.g. inflamed areas. These cells usually
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Eukaryotic organelles Margaret Walsh South University Online Eukaryotic organelles Living things have evolved into three categories of closely related organisms‚ called "domains": Archaea‚ Bacteria‚ and Eukaryota. Life as we see it each day — including plants and animals — belongs to the third domain‚ Eukaryota. Eukaryotic
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your cell‚ draw the cell on a piece of paper to be handed in later. 5. The drawing of the cell will need to have the organelles labeled as well as the function written out. Plant cell: ❑ Cell wall light green ❑ Cell membrane pink ❑ Golgi Apparatus orange ❑ Mitochondria yellow ❑ Chloroplast green ❑ Nucleus brown ❑ RER red ❑ Ribosome black ❑ Cytoplasm white ❑ Central vacuole
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endoplasmic reticulum is where most protein synthesis occurs in the cell. The function of the smooth endoplasmic reticulum is to synthesize lipids in the cell. The smooth ER is also helpful in the detoxification of harmful substances in the cell. Golgi complex- It is organelle in the cell that is responsible for modifying and sorting proteins into vesicles for secretion or transport. These vesicles then deliver the proteins to other cell organelles and to the plasma membrane for cell
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POB II: Exam II Review Chapter 6: tour of the cell Microscopy: • Microscopes provide a window to the cell. • Most important tool in cytology • Resolution has improved understanding of cells. o Resolving power – the smallest distance between two objects that allows them to be seen as distinct objects. o Resolving power of the human eye is 0.1 mm • Light microscope – uses glass lenses and visible light to form a magnified image of an object. o Resolving power of about 100 nm (.0002 mm)
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Suricatta Species Cell Structure & Organelles The cells in a meerkat are eukaryotic because they belong to the Anamalia Kingdom. The five most common organelles found in eukaryotic cells are mitochondria‚ ribosomes‚ nucleus‚ golgi apparatus and lysosome. The mitochondria is an organelle found in the meerkat. Its function is it produces energy out of food consumed. The second organelle is ribosomes‚ which produces protein. The third organelle is the nucleus whose function is
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organelles. The rough endoplasmic reticulum secretes proteins into the cytoplasm. All over the rough ER are ribosomes that enhance its abilities. The smooth ER stores calcium and releases it when a muscle contracts triggering its movement. The golgi apparatus is the organelle that processes and packages proteins that are synthesized by the cell. Ribosomes are like factory where RNA is used to synthesize proteins. They can be found on the rough ER. Chromatin is the combination of proteins and DNA that
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Nucleus | The storehouse for most of the genetic information in your cells. | | Endoplasmic Reticulum | An interconnected network of thin folded membranes. | | Ribosome | Tiny organelles that link amino acids together to from proteins. | | Golgi Apparatus | Consists of closely layered stacks of membrane enclosed spaces that process sort and deliver proteins. | | Mitochondria | Supply energy to the cell. | | Vacuole | A fluid filled sac used for the storage of materials needed by a cell
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