Name:______Pd:______Date: ______

Chemistry- TAKS Blitz Quiz 1

1.  A deletion of a DNA base from a gene affects an organism by ----

  1. Causing future gametes to have additional chromosomes
  2. Changing the sequence of amino acids in a protein
  3. Causing chromosomes fragments to form long chains
  4. Changing the structure of ribose sugar in nucleic acids

2.  At which temperature do KBr and KNO3 have the same solubility?

a.  27oC

b.  48oC

c.  65oC

d.  80oC

3.  When a sea urchin egg is removed from the ocean and placed in freshwater, the egg swells and bursts. Which of these causes water to enter the egg?

  1. Coagulation
  2. Sodium Pump
  3. Active Transport
  4. Osmosis

4.  The table shows the atomic radii of some elements in Periods 1 through 4 of the periodic table. Which inference can be made from this information?

a.  Atomic radii decrease from left to right

b.  Atomic radii increase from bottom to top.

c.  Atomic radii decrease from right to left

d.  Atomic radii double from top to bottom.

5.  Proteins are produced according to a special code found in the control center of the cell. Which of these molecules carries this code?

  1. DNA
  2. ATP
  3. Glucose
  4. Lipid

6.  Which of these best describes the relationship between epiphytes and trees?

  1. Parasitism
  2. Migration
  3. Commensalism
  4. Predation

7.  Which organisms in this food web can be described as

both primary and secondary consumers?

  1. Hawks
  2. Raccoons
  3. Weasels
  4. Mice

8.  Which of the following characteristics could help short plants survive in areas with limited sunlight?

  1. Broad Leaf surfaces
  2. Brightly colored flowers
  3. Thick stems
  4. Shallow roots

9.  Which structure regulates gas exchange during

the process of photosynthesis and respiration?

  1. Q
  2. R
  3. S
  4. T

10.  Which of the following is an example of solar energy being converted into chemical energy?

  1. Plants producing sugar during the day
  2. Water evaporating and condensing in the water cycle
  3. The sun unevenly heating Earth’s surface
  4. Lava erupting from volcanoes for many days

11.  Which word best describes the fungus in the box to the right?

  1. Predator
  2. Produces
  3. Parasite
  4. Decomposer

12.  Greenhouse emissions from cars may contribute to global warming. Cars with better gas mileage emit smaller amounts of greenhouse gases. Which car would emit the least amount of greenhouse gases if most of the driving was done on the highway?

  1. J
  2. K
  3. L
  4. M