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What are steroids? What are some examples of steroids with a biological function? What are proteins? How can the protein diversity of living beings be explained?
What is the structural formula of glycerol? To which organic function do these molecules belong? How are triglycerides made? What are phospholipids?
What are the main biological functions of water? What are pentoses? What are the roles of pentoses in DNA and RNA molecules? What are the main biological functions of the polysaccharides?
What are the most important organic molecules for living beings? What is the approximate percentage (in mass) of water in the human body? Is this percentage expected to be larger in the adult or in
What is protein denaturation? Is there any change in the primary structure when a protein is denatured? What are mineral salts? Where in living beings can mineral salts be found?
Are proteins with the same number of each different amino acid that form them necessarily identical proteins? What is the primary structure of a protein? What is the importance of the primary structur
What is the importance of the -R group (variable radical) in an amino acidmolecule? How can the binding of two amino acids for the peptide formation be described?
Which of the following molecules is NOT found in connective tissue? 1)intermediate filaments 2)collagen IV
State five (5) adaptations (e.g., modifications, or specializations) of the GI tract and explain in detail how three (3) of these adaptations help the GI tract to perform its functions.
What characteristics of the metabolic pathways in cells led to their rapid description and to control methods for defects in the pathways?
Describe three different types of cellular reactions a cancer cell could use to respond to a cancer drug that could overcome the drug's effects.
Classify each satement as a description of prokaryotic cell or eukaryotic cells 1)Does not contain organelles in the cytosol 2) is generally small cell
How simple would it be to describe the pathways and processes that are active in the control and execution of the transition of a mammal from a single egg cell to a mature organism?
What is the structural formula for water? Show the polar ends of the molecule. Draw another water molecule making a hydrogen bond (dotted line) with the first water molecule.
Which organelles are involved in protein formation? Trace the route of a single integral membrane protein from formation to incorporation into the plasma membrane.
What is meant by saturation or unsaturation of oils and fats? Why do fats have thermal isolation properties?
What are hydrophobic molecules (or hydrophobic molecular regions)? What are hydrophilic molecules? How can they be characterized in relation to their polarity?
What is the difference between monosaccharides and disaccharides? What are some examples of disaccharides and of monosaccharides that form them?
What are the organic chemical groups that characterize carbohydrates? How are carbohydrates classified according to the presence of those groups?
Why is iodine important for human beings? What are the main biological functions in which chlorine ions participate?
What is the importance of magnesium for plants? What are the other main biological functions of magnesium? What is phosphorylation? What are some biological processes in which phosphorylation plays a
What are the main biological processes in which calcium participates? What is hemoglobin? What is the inorganic element that is fundamental in the composition of hemoglobin?
Why is pH regulation important for living beings? How do mineral salts participate in this regulation?
How do mineral salts participate in osmotic regulation? What is the role of mineral salts in the creation of electric tension (voltage) at the cellular level?
What are the criteria that the researchers use to choose whether a protein is an SR protein or and SR-like protein? What are ions? What are the two types of molecules into which ions are classified?