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SCI 135 - Fourth Exam Fall 2019 MULTIPLE CHOICE.
On the line to the left,
place the letter of the choice that best answers the question. Three Points Each.
NOTE: "e"
answers are never the correct answer.
1. Which type of cells are most
at risk for becoming cancerous?
_______
a. Very metabolically active
b. Ones that normally divide
c. Cells that were made long
ago
d. Cells that normally can crawl
e. Cells that secretly hate their
lives
2. Plants depend upon
symbionts to supply them with
_______
a. Carbon dioxide
b. Light
c. Minerals
d. Nitrates
e.
Most of their “Likes”
3.
What fuses during fusion?
_______
a. Chromosomes
b. Genes
c. Haploid nuclei
d.
Diploid nuclei
e. Can these fuses burn out?
4. Researchers connect problems
with breeding cheetahs to a lack of
extinct during the last major
ice age. What effect is
at play here?
_______
a. Genetic drift
b. Bottleneck effect
c. Founder effect
d. Residual reduction
e. Irony
5.
Enzymes are affected by temperature because temperature
_______
a. Changes how electrons
move in the molecules
b.
Can break the membrane
c.
Disrupts the enzyme’s DNA
d.
Moves and shakes the molecules
e. Sneaks up behind the
enzymes and frightens them
6.
Which would have started as ectoderm?
_______
a. Brain
b. Intestine
c. Muscles
d. Lungs
e.
Isn’t that an acne cream?
7.
Protocells probably got started
from
_______
a. Hydrothermal vents
b. Surface oils and stormy
conditions
c. The Snowball Period
d. Aerobic respiration
e. Satellite telephones
8.
When the leaves turn to bright colors in the fall, what are those colors?
_______
a. Degraded chlorophyll
b. Cellulose
c. Glucose
d. Carotenoids
e. Nature’s makeover
9.
When a protein denatures, it
_______
a. Attaches to a substrate
b. Changes shape
c.
Comes apart into amino acids
d. Shifts to a new
function
e. Gets really
self-conscious and quiet
10.
Plants use glucose for
_______
a. Feeding animals
b.
Energy storage and reproduction
c.
Energy storage and structure
d.
Reproduction and structure
e. Whatever they want -
plants are evil that way
11.
Oxygen debt typically happens in
_______
a. Muscles under high demand
b. Plants in intense light
c.
Respiratory surfaces
d. Brain cells
e. Banks that really
want you to pay them back
12.
What are coupled in coupled reactions?
_______
a. Enzymes & substrates
b. Enzymes & coenzymes
c.
Enzymes & cofactors
d. Exergonic & endergonic
e.
The reactions with deep, abiding respect for each other ...or the hot ones... SHORT
ANSWER.
Answer any eight of the following questions for 4 Points Each.
Note: if you answer
more than eight, only the first eight will be corrected.
You can get partial credit on these answers.
LONG ANSWER.
Answer any four of the
following questions for Eight Points Each. Note:
if you answer more than four, only the first four
will be corrected.
You can get partial credit on these answers.
Link to Answer Key BONUS QUESTIONS.
Answer as many as you are
able. Wrong answers will not result
in points being lost from the main exam.
You can get partial credit on these answers.
Hardy and Weinberg -
what was
their general specialty?
Three Points.
Briefly explain how mistakes during meiosis
can add to genetic information.
Three Points.
Why
do polar bodies exist? Three
Points.
When human embryos become “hollow balls,” what
shape are they really (Three Points), and why that shape?
Three Points.
Hybrid vigor
was first discovered in the relationship between what
two diseases?
Four Points.
How does convergent
evolution show up in advanced cancers?
Three Points. People complain that
cancer chemotherapy is poison.
Why does it pretty much have to be?
Three Points.
Although Splenda is a sugar
molecule, it has no calories. Why?
Three Points.
What is weird about the definition of a
vitamin? Three Points.
What is a Calorie?
Three Points. What is panspermia?
Three Points.
What “retunes” the energy in reradiation?
Three Points. |
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