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Exam 1 Form A Answer Key | Anatomy and Physiology I | BMS 250, Exams of Physiology

Grand Valley State University (GVSU)Physiology
Prof. Francis A. Sylvester

Material Type: Exam; Professor: Sylvester; Class: Anatomy & Physiology I; Subject: Biomedical Sciences; University: Grand Valley State University; Term: Fall 2009;

Typology: Exams

2009/2010

Uploaded on 12/10/2010

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BMS 250
Francis A. Sylvester, Ph.D.
February 1, 2010
Exam 1 Form A Key (100 points)
Directions: Select the single best answer for each question and fill in the corresponding
bubble on the scantron answer sheet. Only answers expressed on the scantron sheet will
be graded. There are 50 multiple choice questions and each question is worth 2 points.
Answers will be posted on Blackboard at 6 pm tonight.
1. _____ Physiology is best defined as the study of
A. body structure.
B. body function.
C. homeostasis.
D. impairments to health.
E. body tissues using a microscope.
2. _____ The study of the structure and function of cells is known as
A. molecular biology.
B. pathology.
C. gross anatomy.
D. cytology.
E. kinesiology.
3. _____ Which of the following correctly depicts the level of organization of the
human body?
A. atom molecule organelle cell organ tissue organ system
organism
B. atom organelle molecule cell organ tissue organ system
organism
C. atom molecule organelle cell tissue organ organ
system organism
D. molecule atom organelle cell tissue organ organ system
organism
E. organelle atom molecule cell tissue organ organ system
organism
4. _____ All of the following are examples of macromolecules found in the human
body except
A. protein.
B. lipid.
C. nucleic acids.
D. carbohydrates.
E. potassium chloride.
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Download Exam 1 Form A Answer Key | Anatomy and Physiology I | BMS 250 and more Exams Physiology in PDF only on Docsity!

BMS 250 Francis A. Sylvester, Ph.D. February 1, 2010 Exam 1 Form A Key (100 points) Directions: Select the single best answer for each question and fill in the corresponding bubble on the scantron answer sheet. Only answers expressed on the scantron sheet will be graded. There are 50 multiple choice questions and each question is worth 2 points. Answers will be posted on Blackboard at 6 pm tonight.

  1. _____ Physiology is best defined as the study of A. body structure. B. body function. C. homeostasis. D. impairments to health. E. body tissues using a microscope.
  2. _____ The study of the structure and function of cells is known as A. molecular biology. B. pathology. C. gross anatomy. D. cytology. E. kinesiology.
  3. _____ Which of the following correctly depicts the level of organization of the human body? A. atom  molecule  organelle  cell  organ  tissue  organ system  organism B. atom  organelle  molecule  cell  organ  tissue  organ system  organism C. atom  molecule  organelle  cell  tissue  organ  organ system  organism D. molecule  atom  organelle  cell  tissue  organ  organ system  organism E. organelle  atom  molecule  cell  tissue  organ  organ system  organism
  4. _____ All of the following are examples of macromolecules found in the human body except A. protein. B. lipid. C. nucleic acids. D. carbohydrates. E. potassium chloride.
  1. _____ The most common mechanism for mediating homeostasis is A. negative feedback. B. positive feedback. C. feed forward control. D. the administration of drugs. E. mental telepathy.
  2. ____ Which of the following is not an example of negative feedback? A. The blood pressure decreases momentarily. The drop in blood pressure is detected by a baroreceptor. The baroreceptor conveys this information to the medulla of the brain which ultimately causes the blood pressure to increase to its normal level. B. The kidney releases a hormone that causes the blood volume of a person to increase. This increase in blood volume causes an increase in water absorption in the small intestines, thus causing blood volume to increase yet again. C. A decrease in body temperature induces shivering of the body which effectively elevates body temperature to its normal value. D. The pH of the body decreases and the body responds by increasing the rate of breathing. This causes the pH to increase and return to its normal level. E. The ovary secretes estrogen upon stimulation by a hormone called FSH. The increase in estrogen release causes a decrease in FSH secretion.
  3. _____ All of the following statements about the standard anatomical position are true except: A. the palmar surface is visible from an anterior view. B. the face is directed forward. C. the thumb is medial to the ring finger. D. the umbilicus is inferior to the thorax. E. the eyes are lateral to the nose.
  4. _____ Which of the following regions is not part of the upper limb? A. plantar B. carpal C. cubital D. brachial E. palmar
  5. _____ A __________ plane passes through the sternum and umbilicus. A. central B. frontal C. transverse D. coronal E. midsagittal F. B and D
  1. _____ A substance capable of dissolving freely in water is A. hydrophilic. B. hydrophobic. C. hydrolyzed. D. hydrated. E. amphiphilic.
  2. _____ The amount of heat required to raise 1 gram of water 1 degree C is called a A. microfarad. B. volt. C. amp. D. calorie. E. poise.
  3. _____ Which of the following statements about concentration is false? A. The osmolarity of a 1 molar glucose solution is equal to 1 osmolar. B. Molarity is defined as moles of solute per liter of solution. C. The concentration of a typical human cell is 0.3 osmolar. D. The osmolarity of a salt solution is greater than its concentration expressed as molarity. E. A 5% glucose solution is made by adding 10 grams of glucose to 100 ml of water.
  4. _____ When you exercise vigorously, lactic acid production increases within your skeletal muscles. What effect will this have on the pH of the body? A. It will cause the pH to increase. B. It will cause the pH to decrease. C. It will cause the pH to increase to 15.
  5. _____ A chemical reaction in which a molecule gains an electron is called a(n) __________ reaction. A. oxidation B. reduction
  6. _____ Which of the molecules is not an example of a polymer? A. starch B. glycogen C. DNA D. hemoglobin E. the amino acid glycine F. A-E are all examples of polymers.
  1. _____ This type of chemical reaction is used to break polymers down into monomers. A. condensation B. hydrolysis C. covalent D. opposite E. anabolism
  2. _____ Sucrose, or table sugar, is an example of a(n) A. amino acid. B. nucleic acid. C. lipid. D. monosaccharide. E. disaccharide.
  3. _____ Which of the following molecules is not an example of a lipid? A. cholesterol B. eicosanoid C. phospholipid D. lactose E. triglyceride
  4. _____ Triglycerides are created by covalently linking 3 fatty acids to a 3 carbon alcohol called A. methanol. B. ethanol. C. glycerol. D. agarose. E. none of the above.
  5. ____ Phospholipids are examples of amphiphilic molecules. What does this mean? A. These molecules contain both hydrophilic and hydrophobic portions. B. These molecules contain only hydrophilic portions. C. These molecules contain only hydrophobic portions. D. These molecules exhibit a morphology similar to that of an amphibian. E. These molecules are shaped like the human hand.
  6. _____ Identify the molecule pictured to the right. A. amino acid B. triglyceride C. nucleotide D. cholesterol E. glucose
  1. _____ Ion channels are A. examples of transmembrane proteins. B. impermeable to water. C. absent in most human cells. D. not required for the normal function of nerve and muscle cells. E. more than 1 answer is correct.
  2. _____ Which of the following is an appropriate method for increasing the rate of simple diffusion of a substance placed in a beaker of water? A. decrease the temperature of the water B. increase the concentration of the substance C. coat the outer surface of the substance with a hydrophobic covering D. change the concentration of the substance from 1.0 osmolar to 0. osmolar E. More than 1 answer is correct.
  3. _____ What is the tonicity of a 0.15 molar sodium chloride solution? A. hypotonic B. isotonic C. hypertonic D. gin and tonic
  4. _____ A concentrated solution that causes a cell to shrink is __________ to the cell. A. hypotonic B. hypertonic C. isotonic
  5. _____ __________ gates in the plasma membrane open or close in response to changes in the electrical charge difference across the membrane. A. Ligand B. Voltage C. Mechanical D. Loop E. Null
  6. _____ Which organelle is the actual site of transcription in a human cell? A. endoplasmic reticulum B. Golgi apparatus C. lysosome D. peroxisome E. nucleus
  1. _____ Name the organelle that is directly responsible for the synthesis of new proteins. A. smooth endoplasmic reticulum B. peroxisome C. centriole D. nucleus E. ribosome
  2. _____ Name the organelle that contains a high concentration of catalase. A. mitochondria B. nucleus C. peroxisome D. lysosome E. Golgi apparatus
  3. _____ Which of the following organelles contains DNA? A. nucleus B. mitochondria C. ER D. ribosome E. A and B F. none of the above
  4. _____ Name the cytoskeletal filament that is responsible for guiding the migration of chromosomes during mitosis. A. microfilaments B. intermediate filaments C. actin D. myosin E. microtubules
  5. _____ Which organelle contains the enzymes involved with the Krebs cycle, one of the metabolic pathways of cell respiration? A. nucleus B. peroxisome C. lysosome D. mitochondria E. none of the above
  6. _____ Which of the following is not found in DNA? A. thymine B. phosphate C. cytosine D. deoxyribose E. uracil