Download APHY 203 Test Bank For Anatomy and Physiology 1 BIO 203 2024 Exam question and answers (mu and more Exams Anatomy in PDF only on Docsity!
APHY 203 Test Bank For Anatomy and Physiology 1
BIO 203 2024 Exam question and answers (multiple
choices)
Which property of water best describes its functions in serious membranes? A) It absorbs heat B) It carries heat c) it cushion and protects D) It acts as a lubricant A)It carries heat Which types of bond has an atom that donates electrons and another atom that accepts electrons? A) Hydrogen B) Ionic C) polar covalent D) Non-Polar covalent B)Ionic Which subatomic particle has a negative charge? A)Protons B)Neutrons C)Electrons C) Electrons have a negative charge which term best describes the sense and reaction to changes in the environment?
A)Metabolism B) Growth C)Responsiveness D) Metabolism C) Responsiveness Which molecule is hydrophobic and will not dissolve in water? A)Sodium chloride B) Carbon Monoxide C) Methane D) Hydrochloric acid C) Methane Which type of energy is created by the flow of ions? Electrical Which has a polar covalent bond? A) H2O B) CH C) NaCI D) N A) H
C) A large molecule which is a major element of the human body? A) N (nitrogen) B) S C) P D) Na a) N- Nitrogen Which organ system consists of the heart and blood vessels? A) Endocrine B)Respiratory C) Lymphatic D) Cardiovascular D) Cardiovascular Which is a the characteristic of an enzyme? A) They raise the activation energy. B) One enzyme may catalyze many different types of reactions C)They are permanently altered after a reaction D) They are proteins D)They are proteins
In methane (CH4), how many total electrons are shared by carbon with the hydrogen atoms? A) 1 B) 2 C) 4 D) 8 C) True or False. isotopes of an atom have the same number of protons True Which part of the feedback loop sends signals to effectors? A) Receptor B) Control center c) Response d)Stimulus B) Control center Which substance of the body has a ph close to 7.42? A)water B)Blood C) Ammonia D) Hydrochloric acid B) Blood
C) Excretion Which organ system would contain the brain and spinal cord? A. Integumentary. B. Muscular. C. Skeletal. D. Urinary. E. Nervous. E) Nervous Which discipline studies diseases? A. Pathology. B. Histology. C. Cytology. A) Pathology Which part of a homeostatic mechanism detects the change in a regulated variable? A. Stimulus. B. Control center. C. Effector. D. Receptor. D) Receptor
True or False. Most homeostatic mechanisms operate by negative feedback. True What do we call multiple forms of an atom that have different number of neutrons? A. Anions. B. Cations. C. Isotopes. D. Compounds. C) Isotopes An atom has 35 electrons, 35 protons and 44 neutrons. What is its approximate atomic mass? A. 35. B. 44. C. 70 D. 79. E. 114 D) 79 All are major elements of the human body EXCEPT: A. Calcium. B. Carbon. C. Hydrogen. D. Oxygen.
A. Carbon dioxide. B. Oxygen. C. Sodium chloride. D. Water. D) Water What does potassium become if it loses an electron? A. An anion. B. A Cation. B) A Cation Which of the following is the strongest type of bond? A. Covalent. B. Hydrogen. C. Ionic. A) Covalent Which best describes helium that has 2 protons, 2 electrons and 2 neutrons? A. Reactive. B. Inert (stable) B) Inert (stable) Which type of energy is produced by the flow of ions?
A. Mechanical. B. Electrical. C. Chemical. B) Electrical All are characteristics of an enzyme EXCEPT: A. Enzymes are proteins. B. Enzymes raise the activation energy of a chemical reaction. C. Enzymes saturate. D. Enzymes often end in the suffix -ase. E.Enzyme are not permanently altered in a chemical reaction B)Enzymes raise the activation energy of a chemical reaction. Which statement best supports the comparison of pushing a ball over a hill and an enzyme catalyzed reaction? A. The reactants occur when the ball rests after rolling down the hill. B. The products occur before the ball is pushed up the hill. C. The transition state is when the ball is at the top of the hill. D. The activation energy is greater in a smaller hill. C. The transition state is when the ball is at the top of the hill. Which statement will increase the rate of a reaction? A. A smaller concentration of reactants.
C. Alkaline. C. Alkaline True or False An increase in hydrogen ions will decrease pH. True What is the difference in hydrogen ion concentration of a pH 4 solution and a pH 8 solution? A. 10 times. B. 100 times. C. 1000 times. D. 10,000 times. D. 10,000 times What will occur if more carbonic acid (H2CO3) in produced in the blood? A. Blood pH will increase. B. Blood pH will decrease. B. Blood pH ill decrease True or False. Pinocytosis is known as "cell drinking" whereas phagocytosis is known as "cell eating"
True Which organelle has a function in calcium storage? A) Golgi apparatus B)Peroxisomes C) Smooth endoplasmic reticulum D)Lysosome C) Smooth endoplasmic reticulum Which is a type of intermediate filament? A)Keratin B) Actin C) Tubulin D) Microfilament A)Keratin Which best describes the transport of glucose across the cell membrane? A) a uniporter B) A Symporter C) An antiporter B) A Symporter True or False
A) tRNA B) mRNA C) rRNA D) Ribosome A). tRNA What was the original DNA triplet if the anticodon was UAC? A) AUG B) TAC C) TAG D) ATG B) TAC Which is the final product from transcription? A) A Polypeptide B) mRNA c) rRNA D) tRNA b) mRNA True or False There are sixty-four different codons in the human genetic code. True
All the characteristics of DNA except? A) it is found in the nucleus B) Each strand is composed of alternating phosphates and pentose sugars C) It contains thymine D) The two strands are held together by ionic bonds D) The two strands are held together by ionic bonds ATP (adenosine triphosphate) is considered a nucleotide because each adenosine is composed of ______ and ribose. A)Thymine B)Guanine C) Cytosine D) Adenine D) Adenine A nucleotide is composed of nitrogenous base, a pentose sugar and a ____ A) a phosphate B) A carboxylic acid C) A hydroxide D) An amine A) A Phosphate True or False.
A) Triglycerides B) Phospholipids C) Steroids D) starch C) Steroids Which is a characteristic about fatty acids? A) They have a hydroxyl functional group B) They have more oxygen than carbohydrates. C) Saturated fatty acids double bonds D)Unsaturated fatty acids are bent molecules D)Unsaturated fatty acids are bent molecules All are characteristics of glucose EXCEPT? A) it is a pentose sugar B) It has C: H:O close to 1: 2: 1 ratio C) It is an isomer D) It is a monosaccharide A) it is a pentose sugar True or False. Hydrolysis reactions are use in forming polymers in organic molecules. False.
Which of the following reactions is a hydrolysis reaction? A. Amino acid + Amino acid + Amino acid ->Tripeptide + 2 H2O. B. Triglyceride + 3 H2O -> Glycerol + 3 fatty acids. C. Glucose + Fructose -> Sucrose + H2O. D. Nucleotide + Nucleotide + Nucleotide -> Nucleic acid + 2 H2O. B. Triglyceride + 3 H2O -> Glycerol + 3 fatty acids. Which is correct about carbohydrates? A. They often end in -ase. B. They form steroid hormones. C. They form a part of ATP. D. They form enzymes. C. They form a part of ATP. Which is the major polysaccharide stored in the human body? A. Starch. B. Glycogen. C. Cholesterol. D. Deoxyribonucleic acid. B. Glycogen
