Biology 123 lab exam 1 Questions and Correct Answers

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Biology 123 lab exam 1 Questions and
Correct Answers
total magnification= ocular magnification + objective
magnification Ans: what is the formula for total magnification?

ocular and objective Ans: what are the two types of lens on a
microscope?

resolving power Ans: 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 Ans: what factors can change the resolving
power?

2 Ans: how many carbon rings are present in a disaccharide ?

DNA and RNA Ans: what are the 2 major types of nucleic acids?

1. Carbohydrates

2. fats

3. proteins


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4. nucleotides Ans: what are the 4 categories of organic
compounds?

carbon, oxygen, and hydrogen Ans: what makes up a
carbohydrate (CH2O) ?

3-10 Ans: how many carbons can a monosaccharide contain?

monosacharide Ans: what is the basic structural unit of a
carbohydrate?

monsacharide Ans: single sugar

reducing sugars Ans: sugars with free aldehyde or keytone group

condensation Ans: 2 monosaccharides form disaccharides and
H2O is released, thus making it the product

hydrolysis Ans: H2O is used to split a disaccharide. H2O is the
reactant

tryglycerides Ans: what is the most common type of fat?

1. Benedict

2. Lugol's

3. Sudan IV



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