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BIOL 1000 Study Guide - Quiz Guide: Golgi Apparatus, Archaea, Nucleoid

Course Code
BIOL 1000
Y I Sheng
Study Guide

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Biol1000 practice Questions Sept 28, 2012
1. Which of the following is NOT true of pigments?
A. They are made up of alternating single and double bonds
B. They possess color corresponding to the color of absorbed light
C. they possess delocalized electrons that absorb light energy and move to an excited state.
D. It is characterized by a conjugated system
2. Which of the following is not characteristic of bacteriorhodopsin?
A. It is found in certain prokaryotes
B. It absorbs light energy
C. It is involved in certain types of photosynthesis
D. It has the conjugated system structure
3. A scientist has been studying the firefly population over the past 5 years and observes that
as the area that she has been studying has become more developed with offices and housing
complexes over the last 2 years, the firefly population has also declined significantly. The
scientist proposes a series of hypotheses to explain the decline. Which of her hypotheses is
most likely to be correct?
A. Excessive amounts of artificial light prevent the female fireflies from seeing the male’s
flashing mating signal.
B. Due to excessive amounts of artificial light, the firefly is now active during the day and the
scientist is trying to study them at the wrong time of day leading to incorrect counts of the
number of fireflies.
C. Excessive amounts of artificial light resulted in the evolution of a different mechanism in the
male firefly for attracting females and the females no longer recognize this signal.
D. None of the above
4. In humans, melanin
A. Plays a critical role in the synthesis of vitamin D
B. Levels increase at night which contributes to maintaining the body’s circadian clock.
C. Prevents DNA damage resulting from UV light.
D. Prevents the formation of UVA and UVB in the skin.
5. Which of the following statements about bioluminescence is false?
A. It describes the excess of nighttime light of urban environments
B. It is a biological process that requires energy
C. It can be used to attract mates.
D. It is a form of communication among bacteria.
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6. The root of the phylogenetic tree represents________.
A. The big bang
B. An extinct lineage
C. The common ancestor for life
D. The number of species present in a population
7. Which of the following statements about plants is true?
A. They contain chloroplasts but not mitochondria.
B. They contain a cell wall made of carbohydrate surrounded by a second lipid bilayer
C. They are generally photoautotrophs
D. All of the above
8. The cytoskeleton___________.
A. Is composed primarily of protein.
B. Is composed of RNA and protein with some carbohydrates.
C. Is a rigid support system for the cell, much like our own skeleton.
D. Is only found in plant cells.
9. Using the definition of an organelle discussed in class, which of the following is NOT
considered to be an organelle?
A. Nucleus
B. Mitochondrion
C. Flagellum
D. Chloroplast
10. Nucleotides are made up of deoxyribose, a phosphate group and ________.
A. A purine
B. A pyrimidine
C. A purine or a pyrimidine base
D. A phosphodiester bond
11. Prokaryotic cells do not contain__________.
A. A plasma membrane
B. A cell wall
C. Ribosomes
D. A nucleus
12. Which of the following gives additional protection to some bacteria?
A. The plasma membrane
B. The nucleoid
C. The capsule
D. The cell wall
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