Blog

There once was an experiment conducted to test the effectiveness of a blood pressure medication known as Lowpress, which is thought to help lower blood pressure. Two groups of 30 patients, each suffering from chronic high blood pressure, were selected for the study. The first group (Group A) were given Lowpress. The second group (Group B) were given a placebo pill made of sugar. Both groups were given their pills 3 times a day, and their blood pressure was measured 3 times per day. Both groups were also assigned the same diet plan, they could only drink water and had to eat at the same time of day. In this experiment, what is the dependent variable?

There are four images below displaying the structure of the four macromolecules we discussed in class. “Molecule C” represents which of the following Macromolecules?  

What type of bond is formed between water molecules due to the attraction between a hydrogen atom of one molecule and an oxygen atom of another?

Which of the following is true about dehydration synthesis?

Which of the following is the BEST (most testable) hypothesis?

If the atomic number of sodium is 11, and the atomic mass of sodium is 22.990, how many protons, neutrons, and electrons does sodium have?

Which parts of the amino acids are joined together to form a protein?

Using the image of the microscope or your knowledge of a microscope, what is name of the lenses that can be rotated into position on the microscope to change the amount of magnification (this is part J in the image):

If you get lost on your slide while using the microscope, what is the best way to get the object back into focus?

Suppose an atom has 14 protons and 16 electrons, is this atom a cation or an anion?