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In an experiment, fluoride is given to plants to test how the chemical hinders the plants ability to perform photosynthesis. Two groups of plants are grown for one semester at Central Alabama Community College. One group of plants is given fluoride, water, 11 hours of daily sunlight, and nutrient rich soil. The second group of plants are given only water, 11 hours of daily sunlight, and nutrient rich soil, but no fluoride. At the end of the semester, the chloroplasts in the two groups of plants are extracted and tested for their ability to perform photosynthesis. The first group of plants were not able to perform photosynthesis at all. Which variable in this experiment would be considered the independent variable?

Referring to Macromolecule image again, what is the section labelled “C”? (This is the functional group on the macromolecule that contains one carbon atom, two oxygen atoms, and one hydrogen atom.)

Which macromolecule is used primarily for long-term energy storage? Examples of this macromolecule were lipstick, oil, wax, fat, and butter.

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

Which process is responsible for joining amino acids together to form proteins?

Using the image of the microscope or your knowledge of a microscope, what is the part of the microscope that the slide is placed on top of for viewing? (This is part C in the image):

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

How many electrons are shared in a single covalent bond?

Why is it important to include a placebo in scientific studies?

If the atomic number of helium is 2, and the atomic mass of helium is 4.003, how many electrons are in helium?