Quizes

=Quizes:=

QUIZ 1:

1500 Quiz -- 10 points 1) Bees help flowering plants reproduce. When the bees visit flowers they help the flowers reproduce. The bees visit the flowers in order to get food (nectar), but not in order to help the plants reproduce. Describe the symbiotic relationship, and explain how your answer relates to the bee and the flower. (3 points)  2) Name 3 organelles (.4 each), state their function (.3 each), and tell whether they are found in animal or plant cells or both animal and plant cells. (.3 each) 3) You have a microscope with an ocular lens magnification of x20, a scanning lens of x2, a low power lens of x10 and a high power lens of x20. What is the total magnification if you use the lowest power lens? (2 points total) 4) What is a structural difference between fungi and plants? Name one structure that fungi have, but plants do not. (1 point) Name one structure that plants have, but fungi do not. (1 points)

QUIZ 3:

Quiz 3 1. Name 2 of the four levels of biological organization, and explain how these two levels are defined. (2 points) 2. Name the 3 possible germ layers of an animal. (1 point) 3. The coelom develops in eucoelomates and pseudocoelomates. What is a coelom? (2 points) 4. In the data lab, you recorded data from a sample group of 10 ping-pong balls. The variables you recorded were gender, weight, and length. a. What is the “population”? (2 points) b. Give an example of a continuous variable. (1 point) c. Give an example of a discrete variable. (1 point) 5. The standard deviation is the square root of the variance. In non-math words, what is the standard deviation? What does it describe in a sample? (1 point)

=QUIZ 4:=

** QUIZ 4 ** 1) Define negative correlation. (1) 2) Using the data on individual students and their GPA and the hours/week that they spent reading, choose one:
 * ** Question 2: ** ||
 * GPA || Hours/week reading ||
 * 3.5 || 21 ||
 * 3.6 || 18 ||
 * 3.2 || 16 ||
 * 3.0 || 14 ||
 * 3.1 || 15 ||
 * 2.8 || 11 ||
 * 2.7 || 13 ||
 * 3.2 || 14 ||
 * 2.5 || 10 ||

2a) Make an informative histogram for one of the variables in this data set. (4) 2b) Plot this data (3), and give the correlation (pos, neg, or none) between the variables (1).
 * ** 3) CARBOHYDRATES ** ||
 * ||  || Starch test || Maltose test ||
 * (1) || starch + water || +++ || - ||
 * (2) || starch + ptyalin || + || ++ ||

3) Explain these results -- what can be concluded from this experimental data about the behavior of the enzyme on starch? (2)

4) Explain these results -- what can be concluded from this experimental data about the behavior of the enzyme in different environments? (3 points)
 * ** 4) PROTEINS ** ||
 * ||  || Egg Digestion || pH ||
 * (1) || pepsin + acid || +++ || 2 ||
 * (2) || pepsin + water || + || 7 ||
 * (3) || acid + water || - || 2 ||
 * (4) || pepsin + base || - || 12 ||