Lab Skills & Experiments
What tool should you use to transfer 15 µL of liquid?
Micropipette
What is the term for differences among individuals in a population?
Variation
What organelle contains most of a eukaryotic cell's DNA?
Nucleus
What term describes an organism with two different alleles?
What molecule provides immediately usable energy for cells?
ATP
What tool is best for accurately measuring 20 mL of water?
Graduated cylinder
What is a random change in DNA called?
Mutation
Which process produces two genetically identical daughter cells?
Mitosis
If B is dominant, what phenotype will Bb have?
The dominant phenotype
Which macromolecule is the body's major source of short-term energy?
Carbohydrates
Why should scientists keep conditions the same when comparing different antibiotics?
To make sure the antibiotic is the variable causing any differences
After antibiotics kill susceptible bacteria, resistant bacteria survive and reproduce. What process is occurring?
Natural Selection
Which process produces gametes with half the normal chromosome number?
Meiosis
Cross Hh × hh. What percentage should show the dominant phenotype?
50%
Complete the pathway: Sunlight → _____ → ATP
Energy Stored in Glucose
Why is a treatment with 0 mg/mL antibiotic useful in an experiment?
It serves as a control for comparison
Why can antibiotic resistance become more common over generations?
Resistant bacteria survive and reproduce more successfully
Human gametes contain 23 chromosomes. How many chromosomes are in most human body cells?
46
Cross Aa × Aa. What percentage of offspring should be aa?
25%
What happens to glucose production if a photosynthetic organism receives much less light?
It decreases
A scientist changes both the antibiotic concentration AND incubation temperature. Why is this a problem
Two variables changed, so you cannot determine which caused the results
Why might we need a different flu vaccine from year to year?
Flu virus populations change/evolve, so previous vaccines may not match as well
Cancer cells divide much more frequently than normal cells. What cellular process is not being properly regulated?
The Cell Cycle / Mitosis
A company wants 100% dominant offspring and one parent is hh. What must the other parent be?
HH
A plant captures sunlight and produces glucose. Explain how that glucose connects photosynthesis, macromolecules, and cellular respiration.
Photosynthesis stores light energy in glucose. Glucose can be used to build energy-storing macromolecules, and cellular respiration breaks down glucose to transfer its stored chemical energy into ATP.