| Question | Answer |
| what would be a product of a synthesis reaction with fatty acids and glycerol as subsstrates?
a. a protein
b. a monosaccharide
c. a triglyceride
d. a nucleic acid | a triglyceride |
| nucleus | karyo- |
| Which body system would be affected the most by degenteration of cartlidge in joints?
a. urinary
b. nervous
c. cardiovascular
d. skeletal | skeletal |
| Union | -sociate |
| Which characteristic is common to all electrolytes?
a. exist as ions in solution
b. yields hydrogen ions in solution
c. has basic chemical properties
d. composed of amino acids | exist as ions in solution |
| the greatest H+1 concentration between a pH of 3 and 4
a. 8
b. 7
c. 6 | 6 |
| cell | cyto |
| cut | -tomo |
| life | bio- |
| What is the difference in H+1 concentration between a pH of 3 and 4?
a. 2 times
b. 10 times
c. 20 times
d. 100 times | 10 times |
| A researcher discovered a new hormone which raises bloodd calcium levels. According to the principles of negative feedback, this hormone would be secreted when? | when blood calcium levels decrease below normal range |
| In a biochemical reaction, a disaccharide is hydrolyzed to
a. monosaccharides
b. another disaccharide
c. polysaccharides
d. starch | monosaccharides |
| Meiosis
a. occurs in somatic cells
b. is accomplished in a single cell division
c. accounts for formation of sperm and egg
d. all the above are correct for a description of meiosis | accounts for formation of sperm and egg |
| The boundary between the intracellular and extracellular fluids is the
a. nucleus
b. cytoplasm
c. cell membrane
d. nuclear membrane | cell membrane |
| The fluid-mosaic model of the cell membrane proposes that
a. proteins form a "liquid" sea n the membrane 4 suspension of other molecules
b. membrane is neither rigid nor static in structure is highly flexible & can change shape & composition through ti | the membrane is neither rigid nor static in structure but is highly flexible and can change its shape and composition through time |
| Choose the true statement:
a. the placement of amino acids in a polypeptide chain is ultimately determined by the sequences of adenine, thymine, guanine, & cytosine in DNA
b. messenger RNS is transcripted from DNA at the ribosome | the placement of amino acids in a polypeptide chain is ultimately determined by the sentences of adenine, thymine, guanine, and cytosine in DNA |
| In a biochemical reaction, the formation of gylcogen from glucose is a _______ reaction
a. hydrolysis
b. synthesis | synthesis |
| sugar | sachhr |
| A decrease in blood pressure outside a resting normal range triggers what response through the negative feedback?
a. continuing decrease of BP
b. blocking a stimulus received by BP receptors
c. returning BP to normal limits | returning BP to normal limits |
| In a negative feedback homeostatic system, the stimulous which triggers an automatic response that corrects the deviation is
a. the presence of a receptor are and an effector area
b. an effector muscle
c. a variation outside of normal limits | a variation outside of normal limits |
| Mitosis
a. forms two daughter cells wit half the DNA of the mother cell
b. forms two daughter cells wit the same amount of DNA as the mother cell
c. forms daughter cells called gametes
d. forms daughter cells with twice the amount of DNA as the mother | forms two daughter cells with the same amount of DNA as the mother cell |
| In a cell, ribosomes are in the
a. intracellular fluid
b. extracellular fluid | intracellular fluid |
| which of the folowing sequences is correct?
a. translation > protein synthesis > transcription
b. transcription > translation > protein synthesis
c. transcription > protein synthesis > translation
d. translation > transcription > protein synthesis | transcription > translation > protein synthesis |
| Enzymes are composed of which fundamental unit?
a. nitrogenous bases
b. lipids
c. amino acids | amino acids |
| Which physiological activity is regulated by a negative feedback system?
a. heart rate
b. normal breathing when you do not conciously regulate your breathing
c. maintaining normal glucose levels
d. all the above | all the above |
| in a synthesis reaction, if two monosaccharides are joined together
a. a new monosaccharide is formed
b. a disaccharide is formed
c. an amino acid is formed
d. a fatty acid if formed | a disaccharide is formed |
| five | pent- |
| A decrease in blood sugar below the set point triggers what response in a negative feedback system?
a. continueing decrease in blood sugar
b. an increase in blood sugar | an increase in blood sugar |
| Which of the following activities would represent a physiological study?
a. observe the structure of the interior of the heart
b. measuring and comparing blood sugar levels of an individual before and after a meal high in carbohydrates
c. all the above | measuring and comparing blood sugar levels of an individual before and after a meal high in carbohydrates |
| Solution A has a pH of 10 & solution B has a pH of 2. Which of the following statements are true?
a. solution & solution B are both basic
b. solution B is basic
c. solution A is acidic
d. Solution B has a higher hydrogen ion concentration than solutio | solution B has a higher hydrogen ion concentration than solution A |
| Which is the correct sequence from largest to smallest?
a. amino acid > cell > protein > atom
b. cell > protein > amino acid > atom
c. amino acid > atom > cell > protein
d. atom > amino acid > protein > cell | cell > protein > amino acid > atom |
| Peptide bonds are characteristic of
a. carbohydrates
b. lipids
c. proteins | proteins |
| Which pH values are all acidic?
a. 3-6
b. 3-9
c. 6-9
d. 7-10 | 3-6 |
| on the outside | extra- |
| color | chromo- |
| same, like | homeo- |
| Which is a lipid?
a. glucose
b. triglycerides
c. glycogen
d. amino acids | triglycerides |
| Whats the highest level of structural organization? | Organ system |
| which cell organelle is correctly matched with its function or location of an activity
a. nucleus-energy generation
b. nucleus- translation
c. ribosome-protein synthesis
d. ribosome- transcription | ribosome- protein synthesis |
