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BSC 2010 - Biology I EXAM 1 Study Guide/ BSC 2010 Exam 1 Review
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BSC 2010 - Biology IEXAM 1 Study Guide
Exam Instructions
• Exam 1 is scheduled for Saturday, September 9 from 12:30pm-1:45pm
• It will be held on the Tampa campus, in room CHE 111, which is one of the 2 large lecture halls
on the north side of the Chemistry building, separate from the main building. CHE is located in the
central part of campus, north of the Science Center (SCA), south of Natural and Environmental
Sciences (NES), and west of Interdisciplinary Sciences (ISA). Campus maps can be found at:
http://www.usf.edu/administrative-services/parking/maps/index.aspx
• The exam covers Chapters 1 through 4, Modules 1‒2.
• It will consist of 50 multiple-choice questions, including some True/False and matching
• Please bring a photo ID and 2 pencils. Scantron sheets will be provided.
• ALL MAKE-UPS FOR ALL TESTS WILL BE GIVEN AT THE VERY END OF THE SEMESTER
(Sunday, November 19), AND ONLY WITH A VALID DOCUMENTED EXCUSE. Please note
also that make-up exams may be largely “subjective” in the form of verbal exams, essay
questions, definitions, fill-in-the-blanks, etc.
Study Recommendations
• The test questions will be based primarily on what’s covered in the slides and the online
practice quizzes.
• Review the PowerPoint slides ahead of time. Reread the sections of the textbook for topics where
you still feel uncertain
• Complete and review the online practice quizzes. If you can answer these questions correctly and
understand the reasons behind them, you should have no trouble doing well on the test.
• At the beginning and end of each chapter in the book there are summaries of the big important
concepts. Focus on thoroughly understanding these concepts – don’t lose the forest for the trees.
• There’s a link to the publisher’s Study Area under the Mastering Biology module. It has assorted
other quizzes, videos, activities, etc. which you may find helpful or interesting.
• Get plenty of sleep, eat a good breakfast, and arrive early. (Yeah, I know that’s usually the
hardest part, and sorry to sound like your mom. But do your best. It really does help.)
Chap 1 — Evolution, the Themes of Biology, and Scientific Inquiry
1. Your textbook lists seven characteristics of life as it is known on Earth. What are they?
• Order, energy processing, evolutionary adaptation, regulation, reproduction, response to
environment, growth and development
,2. Define emergent properties. Give some examples.
• Emergent properties show that at eac level there are properties absent from the
preceding one.
• Due to complexity, it increases at each level
• Ex. A plant as a whole has different properties than the cells it is made up of.
3. Define and contrast positive feedback and negative feedback. Give examples.
• Positive feedback: the end product speeds up production
• Ex. Clotting of blood, need more platelets
• Negatice feedback: which responses reduces the initial stimulus (to maintain stability)
• Ex. Homeostasis; decrease in blood glucose by stimulating cells to produce insulin
eliminates stimulus for secretion
4. Explain how energy flows through an ecosystem, while chemical components are continually
cycled within it.
• Plants take up chemicals from the soil and air, chemicals pass to organisms that eat the
plants, decomposers return chemicals to the soil, etc
• Energy flows thru by light energy taken from the sun, plants converting it to chemical
energy, organisms use that energy to do work, heat is lost from ecosystem
5. What are the three domains of life? Which organisms belong to each domain?
• Bacteria - bacteria
• Archaea – extreme environments
• Eukarya- plantae, fungi Animalia, prostists
6. What are the main differences between eukaryotes and prokaryotes? Classify each of the
following organisms as eukaryotic or prokaryotic: bacteria, archaea, protists, fungi, plants, and
animals.
, • Eukaryotes (protists fungi plants animals) are cells that have membrane enclosed
organelles and the largest is usually the nucleus
• Procaryotes(bacteria and archaea) usually small cell without nucleus or other membrane
enclosed organelles
7. Explain natural selection. What were Darwin’s main observations and the conclusions he drew
from them?
• Individuals with inherited traits that are better suited to the local environment are more
likely to survive and reproduce over generations; nat selection selects certain traits to be
propagated over the generations
• Genes which influence traits that contribute to greater survival and reproductive success
will tend to increase in frequency within the population over generations
• Claimed ancestral species could lead to two or more descendant species
• Species = descent from modification; Evolution occurs as the unequal reproductive
success of individuals
• Varying traits with more offspring that can survive leads to competition
8. Describe and give examples of some of the many lines of evidence for evolution.
• Descent with modification; heritable changes occur after species diverged, over time
individual populations have advantageous traits
9. Define and contrast homologous structures and analogous structures. Give examples.
• Homologous structures are anatomical resemblances that represent variations on a
structural theme present in a common ancestor ex. Seen in Embryos
• Analogous structures are various structures in different species having the same function
but have evolved separately. Thus no common ancestor, convergent evolution
10. What are some of the most common misconceptions about evolution? What are the facts or
principles that they get wrong?
• POPULATIONS evolve over generations, not individuals
• Evolutionary change is slow and gradual over many generations
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