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If in an experiment, two groups of plants are exposed to different amounts of a pesticide and a third group is not, what is the third group called?

A patient is brought to the emergency room after collapsing during a long, hot hike. The patient is dehydrated, with symptoms including dizziness, low blood pressure, and dry skin. The nurse must choose one of the following IV solutions to help restore the body’s fluid balance: 0.9% NaCl (Normal Saline) – Isotonic 0.45% NaCl (½ Normal Saline) – Hypotonic 3% NaCl – Hypertonic Based on this information and what you’ve learned about osmosis, tonicity, and the movement of water across cell membranes, answer the following questions: Predict how red blood cells would respond if a patient were given each of the following IV solutions: 0.9% NaCl (isotonic), 0.45% NaCl (hypotonic), and 3% NaCl (hypertonic).In your answer, include the direction of water movement across red blood cell membranes and describe how the cells would respond in each case. Which IV solution would be the safest and most effective for this patient? Explain your reasoning based on osmosis and tonicity.  Why is understanding tonicity and IV fluid selection important for anyone entering a healthcare or medical field? Your answer should be a paragraph of at least 4–5 sentences and address all parts of the question. 

In lab 2, you examined specimens under the microscope, including the esophagus slide.  This slide had several layers.  These layers were what level of biological organization?

If an atom has 6 protons, 6 neutrons and 6 electrons, on the periodic table, we know this atom is Carbon.  Which of these subatomic particles allowed you to identify it as Carbon?

If a person has a heart attack, the cardiac muscle tissue dies, which can cause the heart to stop working.  The heart in this example would be which level of biological organization?

A patient quickly withdraws their hand after touching a hot surface. This reaction demonstrates which characteristic of life?

When a sodium atom with one valence electron transfers its electron to a chlorine atom with seven valence electrons to form NaCl, what type of chemical bond is created between them?

A doctor examines a tissue sample under a microscope and explains that the smallest unit capable of carrying out all life processes is being studied. Which characteristic of life does this highlight?

If a Nitrogen atom has 7 protons, 7 neutrons, and 7 electrons, which subatomic particle allowed me to identify is as a Nitrogen atom on the periodic table?

Consider the four classes of biological macromolecules that make up a prokaryotic cell and its functions. Which of these do you think plays the most important role for the prokaryotic cell? Include the following in your answer: Identify and define the macromolecule Describe the roles of this macromolecule and its importance for the prokaryotic cell Explain what would likely happen to the prokaryotic cell without this macromolecule Discuss how the prokaryotic cell might manage to survive the absence of this macromolecule Your answer should be a paragraph of at least 4-5 sentences. Note that there is not a single answer to this question, but the point is to demonstrate your understanding of biological macromolecules and their importance to the cell!