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Intro to Biology 1 first section of the study guide

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by: Elisha Hanson

Intro to Biology 1 first section of the study guide Bio 110

Marketplace > Eastern Michigan University > Biology > Bio 110 > Intro to Biology 1 first section of the study guide
Elisha Hanson

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These notes are more detailed notes from what I took in my lecture class.
Intro to Biology I
Anna casper
Study Guide
50 ?




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"I was sick all last week and these notes were exactly what I needed to get caught up. Cheers!"
Ryder Fritsch

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This 5 page Study Guide was uploaded by Elisha Hanson on Friday January 22, 2016. The Study Guide belongs to Bio 110 at Eastern Michigan University taught by Anna casper in Winter 2016. Since its upload, it has received 782 views. For similar materials see Intro to Biology I in Biology at Eastern Michigan University.


Reviews for Intro to Biology 1 first section of the study guide

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I was sick all last week and these notes were exactly what I needed to get caught up. Cheers!

-Ryder Fritsch


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Date Created: 01/22/16
Which of the following is a major reason of the size limits for a cell? Cells need a high surface area to volume ratio to exchange wastes and nutrients  across their membrane. Large number or ribosomes are present in cells that specialize in producing  which of the following molecules? Proteins which organelle plays a role in intracellular digestion? Lysosomes The liver in involved in detoxification of many poisons and drugs. Which of the  following structures is primarily involved in this process and therefore abundant  in liver cells? Smooth ER Which type of organelle or structure is primary involved in the synthesis, of cells  phospholipids, and steroids? Smooth endoplasmic reticulum (SER) a cell has the following molecules and structures: enzymes, DNA, ribosomes,  plasma membrane, and mitochondria. It could be a cell from? Nearly any eukaryotic organism Which organelle is the primary site of ATP synthesis in eukaryotic cells? Mitochondrion In a plant cell, DNA may be found? In the nucleus, mitochondria, and chloroplasts What is the most likely pathway taken by a newly synthesized protein that will be  secreted by a cell? ER>Golgi>Vesicles that fuse with plasma membrane Identify the correct statement about differences between rough and smoot  endoplasmic reticulum (ER)? The outer surface of the smooth ER lacks ribosomes, whereas the outer surface  of rough ER has ribosomes. Describing cellular structure or function? Plants and animal cells both carry out cellular respiration, producing ATP Description of the cell cytoskeleton? The cell cytoskeleton is a dynamic network of fibers that can be quickly  dismantled and resembled to change cell shape and the position of cell components. Which of the following statements about a typical plasma membrane is correct? The two sides of the plasma membrane have different lipid and protein  composition. Which statements about the fluid mosaic structure of a membrane are correct? A) The diverse protein found in and attached to membranes perform many  important functions B) The framework of a membrane is a bilayer of phospholipids with their  hydrophilic heads facing the aqueous environment inside and outside of the  cell and their hydrophobic tails clustered in the center. C) Membranes are fluid, membrane proteins and phospholipids can drift about in the membrane. Plasma membrane of two adjoining cells, identify the protein indicated by the  arrow including its function. A receptor protein, that binds with a signaling molecule and relays the message  into the cell by activating other molecules inside the cell.  Which of the following would be a factor that determines whether the molecule  selectively enters the largest cells? The phospholipid composition of the target cells plasma membrane. A phospholipid has a “head” made up of a glycerol molecule attached to a single  _ ________ which is attached to another molecule. Phosphate group Phospholipids vary in the small molecules attached to the phosphate group. The  phospholipid shown in the figure has a ______________ attached to phosphate  group. Choline Group Because the phosphate group and its attachments are either charged or polar,  the phospholipid head is ______________ which means it has an affinity for  water. Hydrophilic A phospholipid also has two “tails” made of two ___________ molecules, which  consist of carboxyl group with a long hydrocarbon chain attached. Fatty acids The C­H bonds in the fatty acids tails are relatively non­polar, the phospholipid  tails are ____________ which means they are excluded from water.  Hydrophobic What kind of molecules pass through a cell membrane most easily? Small and hydrophobic Which of the following statements is correct about diffusion? It’s a passive process in which molecules move from a region of higher  concentration to a region of low concentration.  Which solution will decrease in volume? 1.4% starch (m/v) for osmosis Which solution will increase in volume? 12.4% (m/v) NaCl Isotonic Solution= nothing happens water flows in and out at some time. Hypertonic Solution= water will flow out of the cell causing it to shrink Hypotonic Solution= water will flow into the cell, causing it to swell and possibly burst. 1. Orange dye moves independently of purple dye Always 2. Concentration gradient exist that drive diffusion of both dyes Only before equilibrium is reached  3. There is a net movement of orange dye from side A to side B Only before equilibrium is reached 4. Purple dye moves only from side B to side A Never 5. There is no new movement of purple dye Only at equilibrium Which of the following molecules cross the lipid bilayer of a membrane directly,  without a transport protein or other mechanism? Carbon dioxide, oxygen, lipids, water Channel Proteins= typically transport water or inorganic ions Carrier Proteins = Typically transport small polar molecules such as sugars or amino  acids. Endocytosis moves materials _________ a cell via __________________ Into a cell via membranous Vesicles A white blood cell engulfing a bacterium is an example of ______________. Phagocytosis Which of the following molecular movements is due to diffusion or osmosis? When a plant cell is placed in concentrated salt water, water moves out of the  cell out of the cell by osmosis, a form of diffusion.  Which statement is correct? The contents of a red blood cell are hypertonic to distilled water.  Red blood cells have a greater concentration then distilled water. What happens when two solutions separated by a selectively permeable  membrane reach osmotic equilibrium? Water molecules move between the two solutions, but there is no net movement  of water across the membrane. Cell structure Are pyrethrum plant cells prokaryotic or eukaryotic? Eukaryotic Are insect cells prokaryotic or eukaryotic? Eukaryotic In pyrethrum plant cells, where would you find DNA Nucleus, Mitochondrion, Chloroplast In insect cells, where would you find DNA Nucleus, mitochondrion  In pyrethrum plant cells, what could be the product of dehydration reactions on  simple sugars? Cellulose Which of these would be found in both insect cells and pyrethrum plant cells? ATP molecules, Mitochondria, Golgi apparatus, Nucleus In pyrethrum plant cells, organelles called __________ use ___________ energy to synthesize _______________, which are broken down by cellular organelles  called ___________ in a process called _______________________ to produce a  useable form of cellular energy, which is molecules of _____. Chloroplast, Solar, Carbohydrates, mitochondria, Cellular respiration, ATP. Which is the most likely pathway for the movement of the protein in the cell? Rough ER to Golgi to vesicles that fuse with the plasma membrane.


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