BIOLOGY 123 LAB EXAM 1 QUESTIONS
AND ANSWERS
total magnification= ocular magnification + objective magnification - Correct Answers -
what is the formula for total magnification?
ocular and objective - Correct Answers -what are the two types of lens on a
microscope?
resolving power - Correct Answers -ability to reveal detail to distinguish 2 closely
spaced objects as being 2 things rather than 1
1. refractive index
2. wavelength of light
3. angle aperture - Correct Answers -what factors can change the resolving power?
2 - Correct Answers -how many carbon rings are present in a disaccharide ?
DNA and RNA - Correct Answers -what are the 2 major types of nucleic acids?
1. Carbohydrates
2. fats
3. proteins
4. nucleotides - Correct Answers -what are the 4 categories of organic compounds?
diffusion
osmosis - Correct Answers -what are the 2 types of passive transports?
water moves down the gradient - Correct Answers -in a passive transport what does
water do?
moves molecules against a gradient - Correct Answers -in an active transport what does
water do?
translational
vibrational
rotational - Correct Answers -what are the 3 molecular motions of kitetic energy?
, rate of diffusion is determined by the magnitude of the difference of the area of the
origin and the area of destination - Correct Answers -what determines the rate of
diffusion?
carbon, oxygen, and hydrogen - Correct Answers -what makes up a carbohydrate
(CH2O) ?
3-10 - Correct Answers -how many carbons can a monosaccharide contain?
monosacharide - Correct Answers -what is the basic structural unit of a carbohydrate?
monsacharide - Correct Answers -single sugar
reducing sugars - Correct Answers -sugars with free aldehyde or keytone group
condensation - Correct Answers -2 monosaccharides form disaccharides and H2O is
released, thus making it the product
hydrolysis - Correct Answers -H2O is used to split a disaccharide. H2O is the reactant
tryglycerides - Correct Answers -what is the most common type of fat?
amino acid - Correct Answers -
carboxal group - Correct Answers -
1. Benedict
2. Lugol's
3. Sudan IV
4. Ninhydrin
5. Biuret reagent - Correct Answers -what are the types of test used to find organic
molecules?
carbs
yellow to red-orange - Correct Answers -what does the Benedicts reagent test for?
What will be the color if the test is positive?
starch
blue-black - Correct Answers -what does the Lugol's reagent test for? what will be the
color if the test is positive?
lipids
large red drops will form - Correct Answers -what does the Sudan IV reagent test for?
what will be the color if the test is positive?
AND ANSWERS
total magnification= ocular magnification + objective magnification - Correct Answers -
what is the formula for total magnification?
ocular and objective - Correct Answers -what are the two types of lens on a
microscope?
resolving power - Correct Answers -ability to reveal detail to distinguish 2 closely
spaced objects as being 2 things rather than 1
1. refractive index
2. wavelength of light
3. angle aperture - Correct Answers -what factors can change the resolving power?
2 - Correct Answers -how many carbon rings are present in a disaccharide ?
DNA and RNA - Correct Answers -what are the 2 major types of nucleic acids?
1. Carbohydrates
2. fats
3. proteins
4. nucleotides - Correct Answers -what are the 4 categories of organic compounds?
diffusion
osmosis - Correct Answers -what are the 2 types of passive transports?
water moves down the gradient - Correct Answers -in a passive transport what does
water do?
moves molecules against a gradient - Correct Answers -in an active transport what does
water do?
translational
vibrational
rotational - Correct Answers -what are the 3 molecular motions of kitetic energy?
, rate of diffusion is determined by the magnitude of the difference of the area of the
origin and the area of destination - Correct Answers -what determines the rate of
diffusion?
carbon, oxygen, and hydrogen - Correct Answers -what makes up a carbohydrate
(CH2O) ?
3-10 - Correct Answers -how many carbons can a monosaccharide contain?
monosacharide - Correct Answers -what is the basic structural unit of a carbohydrate?
monsacharide - Correct Answers -single sugar
reducing sugars - Correct Answers -sugars with free aldehyde or keytone group
condensation - Correct Answers -2 monosaccharides form disaccharides and H2O is
released, thus making it the product
hydrolysis - Correct Answers -H2O is used to split a disaccharide. H2O is the reactant
tryglycerides - Correct Answers -what is the most common type of fat?
amino acid - Correct Answers -
carboxal group - Correct Answers -
1. Benedict
2. Lugol's
3. Sudan IV
4. Ninhydrin
5. Biuret reagent - Correct Answers -what are the types of test used to find organic
molecules?
carbs
yellow to red-orange - Correct Answers -what does the Benedicts reagent test for?
What will be the color if the test is positive?
starch
blue-black - Correct Answers -what does the Lugol's reagent test for? what will be the
color if the test is positive?
lipids
large red drops will form - Correct Answers -what does the Sudan IV reagent test for?
what will be the color if the test is positive?
