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A researcher conducted a study to determine the effects of insulin concentration on the adipogenesis of fibroblast cells. The absorbance of light by the dye OPD is directly proportional to the number of fat produced.    Based on this graph: 1. What can you conclude happens to the fat produced by the adipocytes as the concentration of insulin increases? 2. Propose a possible hypothesis for the result observed when insulin concentration goes from 1 to 4 ug/mL.            

Which objective lens would provide the best resolution to fully observe a bacterial cell with a size of 1000 nm? 

True or False:   An antigen is a molecule produced by B-cells that stimulates an immune response. 

What is the correct order for a direct ELISA?

Which of these is not a type of ELISA?

After using a hemocytometer to count fibroblast cells, you find a concentration of 400,000 cells/mL. You now want to split cells and make a new culture that contains 260,000 cells. How many microliters from your original culture would you have to add?    

What is coral bleaching? What causes a bleaching event to happen?

A student is asked to prepare a 1:5 dilution with a total volume of 650 uL.    1. How many uL of the original sample must the student add? [sample] uL of the original sample 2. How many uL of the solved must the student add? [solv] uL of the solvent.   Note: Round to the nearest whole number.

Which of the following are true about folate? Select all that apply.

Match the stain with the type of stain they are.