Principles Of Biology 1 (Unit 1 Exam Review)
2. Which of the following statements best describes ATP?
Answer: ATP is comprised of a sugar, base, and three phosphate groups.
6. In which of the following is the correct monomer matched with its polymer?
Answer: Amino acid—protein.
1. Which is an example of potential energy rather than kinetic energy?
Answer: An apple made up of energy-rich macromolecules.
12.Which of the following is the correct sequence of events in cellular respiration?
Answer: Glycolysis → Preparatory reaction → Citric acid cycle → Electron transport chain.
20.Which of the following provides support for the endosymbiotic theory?
Answer: Mitochondria and chloroplasts have their own genomes.
8. Which of the following is a true statement about proteins?
Answer: Proteins are made up of amino acids bonded together.
7. The principal role for sugars in living organisms is too.
Answer: Provide a source of cellular energy for work.
14.Which of the following statements best describe the way molecules move across a plasma membrane?
Answer: Small, uncharged molecules pass through the plasma membrane easily.
18.Which of the following statements is true?
Answer: The end product of glycolysis is pyruvate.
5. Hydrolysis of sucrose, a disaccharide, results in.
Answer: Two monomers.
19.Cellular respiration involves all of the following except.
Answer: Breathing in and out.
4. Which of the following is an organic molecule?
Answer: C6H12O6.
3. Which of the following statements describes the correct flow of energy conversions through living systems?
Answer: Chloroplasts convert solar energy to the chemical energy of nutrient molecules.
15.A student sitting in the back row opened a bottle of foul-smelling perfume and dabbed it on her wrists. One by one (beginning from the back of the room) the students began to cough due to the foul smell. This phenomena was due to.
Answer: Diffusion.
16.The largest number of ATP molecules is produced in which phase of cellular respiration.
Answer: Electron transport chain.
10.Which one of the following is a main function of many proteins?
Answer: Enzymatic activity.
17.Which process is responsible for moving bulk cellular wastes across the cell membrane.
Answer: Exocytosis.
11.Which of the following is a passive mechanism used to move materials into and out of of the cell?
Answer: Facilitated diffusion.
13.What property of phospholipids makes them suitable for the formation of the double layer found in membranes?
Answer: They have both a hydrophobic and a hydrophilic end.
9. Select the correct association.
Answer: carbohydrates—provide the body with an immediate source of energy.
