Biology Lab Practical #1 1101 Questions and Answers
Question 1.
What variable is typically on the x-axis of a bar graph?
Correct Answer: dependent
Question 2.
What is the respective function of polysaccharides?
Correct Answer: energy storage and structural support
Question 3.
What is the monomer of a carbohydrate?
Correct Answer: monossacharides
Question 4.
How are fragments separated during gel electrophoresis?
Correct Answer: according to their size
Question 5.
How can you tell if a DNA sample matches one from a crime scene using electrophoresis?
What indicates that they are from the same DNA?
Correct Answer: sample bands will form. The more bands any given samples
have in common, the more likely it is they came from the same person.
Question 6.
What is a dependent variable?
Correct Answer: variable being measured/observed
Question 7.
What is the normal body temp in Celcius?
Correct Answer: 37 degrees
Question 8.
What is the proper way to store and transport your microscope?
Correct Answer: lift with 2 hands, one under the base, one grabbing the
microscope by its arms
Question 9.
What color solution indicates medium reducing sugar content?
Correct Answer: yellow/orange
Question 10.
What is the relative value of base units for hecta?
Correct Answer: 100
Question 11.
Page 1
, What are the names and magnifications for the 3 objective lenses used in the lab? (not
counting the oil immersion (100x) objective
Correct Answer: 4x - scanning lens 10x - low power lens 40x - high power lens
Question 12.
Convert the following to scientific notation 35,621
Correct Answer: 3.5621 x 10^4
Question 13.
Using the following diagram, measure the size of the bands of samples A, B, and C
Page 2
Question 1.
What variable is typically on the x-axis of a bar graph?
Correct Answer: dependent
Question 2.
What is the respective function of polysaccharides?
Correct Answer: energy storage and structural support
Question 3.
What is the monomer of a carbohydrate?
Correct Answer: monossacharides
Question 4.
How are fragments separated during gel electrophoresis?
Correct Answer: according to their size
Question 5.
How can you tell if a DNA sample matches one from a crime scene using electrophoresis?
What indicates that they are from the same DNA?
Correct Answer: sample bands will form. The more bands any given samples
have in common, the more likely it is they came from the same person.
Question 6.
What is a dependent variable?
Correct Answer: variable being measured/observed
Question 7.
What is the normal body temp in Celcius?
Correct Answer: 37 degrees
Question 8.
What is the proper way to store and transport your microscope?
Correct Answer: lift with 2 hands, one under the base, one grabbing the
microscope by its arms
Question 9.
What color solution indicates medium reducing sugar content?
Correct Answer: yellow/orange
Question 10.
What is the relative value of base units for hecta?
Correct Answer: 100
Question 11.
Page 1
, What are the names and magnifications for the 3 objective lenses used in the lab? (not
counting the oil immersion (100x) objective
Correct Answer: 4x - scanning lens 10x - low power lens 40x - high power lens
Question 12.
Convert the following to scientific notation 35,621
Correct Answer: 3.5621 x 10^4
Question 13.
Using the following diagram, measure the size of the bands of samples A, B, and C
Page 2
