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Proficiency Review #3

Proficiency Review #3. Which statement illustrates a biotic factor interacting with an abiotic factor?. A plant absorbs sunlight, which is used for photosynthesis. How would a disease that damages the mitochondria most directly affect the functioning of cells?.

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Proficiency Review #3

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  1. Proficiency Review #3

  2. Which statement illustrates a biotic factor interacting with an abiotic factor? • A plant absorbs sunlight, which is used for photosynthesis.

  3. How would a disease that damages the mitochondria most directly affect the functioning of cells? • Energy obtained from food molecules would be reduced.

  4. When humans change the physical characteristics of organisms, what type of selection is it? • Artificial

  5. What type of organism obtains all its food from the abiotic components of an ecosystem? • Plants or Producers

  6. Which organelles are most directly involved in transporting materials out of the cell? • Cell membrane and cell wall

  7. What is the process by which organisms maintain a stable environment internally? • Homeostasis

  8. Which of the following conditions will increase the rate of a chemical reaction? • Increasing the surface area of a reactant. (GRIND IT) • Stirring the reaction mixture (STIR IT) • Adding a catalyst to the reaction mixture • Increasing the temperature at which the reaction takes place. (HEAT IT)

  9. Which of the following would be an advantage fro using ethanol instead of gasoline as a fuel for cars? • The use of ethanol reduces the amount of greenhouse gases produced from fossil fuels.

  10. Atoms can be connected to other atoms with bonds. Which factors help determine the number/type of bonds an atom can form? • The type of element (ionic or covalent) and the number of valance electrons that atom has.

  11. Nutrients from digested food move from the digestive system directly into the circulatory system (red blood cells) to move throughout the body.

  12. Elements in the same group or family on the periodic table have similar chemical properties and valance electrons.

  13. Which element is most common in an average star? • HYDROGEN

  14. An astronaut travels from the Earth to the moon. Which of the following statements is true? • Her mass will remain the same.

  15. Pie charts are used to show data as parts of a whole (PERCENTS)

  16. A line graph shows a change over a unit . (X AND Y axis)

  17. A Bar Graph compares two or more things.

  18. What force stops most objects? • FRICTION

  19. Which atomic particles are shared or transferred when they form bonds? • ELECTRONS

  20. A reaction that absorbs heat (becomes cool) is an Endothermic reaction. A reaction that releases energy (becomes hot) is an Exothermic reaction.

  21. Ice melting is a physical change. • Any change in state of matter is a physical change.

  22. When there are no more living members of a species, that species is said to be EXTINCT.

  23. Which of the following is an example of kinetic energy (energy in motion)? • A baseball flying through the air.

  24. Which of the following is an example of potential energy? • A skier at the top of a hill.

  25. An adult develops melanoma which is a type of skin cancer. The cancer cannot be passed on to any children because the cancer is in a somatic cell (body cell) not the sex cells.

  26. If an individual inherits two of the same alleles, either both dominant or both recessive for a particular trait, the individual’s genotype is HOMOZYGOUS. • TT • tt • RR • rr

  27. During DNA replication, a complementary strand of DNA is made for each original strand. Thus, if a portion of the original strand is CCTAGCT, then the new strand will be… • GGATCGA • A to T • T to A • C to G • G to C

  28. Science, technology, and society affect each other in both positive and negative ways. One example was the discovery of antibiotics. They are used to treat bacterial infections. The extensive use however, has led to the evolution of dangerous resistant strains of bacteria.

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