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Midterm

BIOL 1000 Study Guide - Midterm Guide: Plant Cell, Endoplasmic Reticulum, Prokaryote


Department
Biology
Course Code
BIOL 1000
Professor
Y I Sheng
Study Guide
Midterm

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Biol1000 practice Questions Sept 2013
NOTE: These questions are to be used as a study guide and may not be representative of all
test questions
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 TRUE with respect to Retinal?
A. It is a light absorbing protein only found in plants and bacteria.
B. Proteins will absorb light and cause a change in the structure retinal.
C. It is found in Rod shaped bacteria.
D. It is also known as Rhodopsin.
E. A conformation shift of retinal will affect protein activity.
3. What role does the eyespot play in Chlamydomonas?
A. It detects light direction and intensity.
B. It detects light direction.
C. It detects photosynthesis.
D. It detects light intensity.
4. 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
5. Which of the following is (are) true of natural selection?
A. requires genetic variation
B. results in change over time
C. involves differential reproductive success
D. B and C only
E. A, B, and C
6. What is a hypothesis?
A. the same thing as an unproven theory
B. a question that can be tested and is falsifiable
C. an experiment that has been conducted once and is based on previous data
D. a question that, once tested and proven, never changes
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7. A localized group of organisms that belong to the same species is called a
A. biosystem.
B. community.
C. population.
D. ecosystem.
E. family.
8. 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
9. What is the flow of information that the central dogma refers to?
A. DNA RNA protein
B. DNA protein RNA
C. RNA protein DNA
D. RNA DNA protein
10. 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.
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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