Desert Adaptations: Dealing with Heat Stress: Bio 182/D. Papaj/Mar. 11, 2008 Key questions for today What is adaptation? A trait that evolved under natural selection and serves some beneficial function. What challenges are faced by organisms in deser
Evolution refers a change in the gene frequency of a population. For example, suppose
that in a certain human population in 1990, 65% of the eye color genes were for blue eyes
and 35% were for br
What is Science?
Descriptive Science and Experimental Science
Scientists may be concerned with describing natural phenomena and they may limit their
investigation to describing nature. However, they often wish to explain na
Is it possible that the data above could have been due to chance and not really to the
effect of bird predation? Statistical analysis allows you to calculate the probability that
the data could have come
Matter occupies space and has weight.
It can exist as a solid, liquid, or gas.
It may be possible to break some kinds of matter down into other kinds of matter with
different properties. For example, water
The plasma membrane surrounds the cell and functions as an interface between the living
interior of the cell and the nonliving exterior.
All cells have one.
It regulates the movement of molecules i
Energy and Enzymes
Energy refers to the capacity to move or change matter.
Forms of Energy
These forms of energy are important to life:
Energy can be transformed fr
What is Cellular Respiration?
Cellular respiration allows organisms to use (release) energy stored in the chemical bonds
of glucose (C6H12O6). The energy in glucose is used to produce ATP.
What is Photosynthesis?
All organisms require energy for their chemical reactions. These reactions may be
involved with reproduction, growth, or other activities. Photosynthetic organisms such as
Chromatin is DNA and associated proteins.
When the cell is not dividing, individual pieces of chromatin called chromosomes may be
condensed into 10 nm, 30 nm or 300 nm fi
The link below is an animation that shows chromosome movement during mitosis in a
hypothetical species with 2N = 4.
Click here to begin the animation. After the screen opens, press Ctrl-F to view the
Unit 1 Lesson 3: How Proteins Work
Lesson 3: How Proteins Work
Two processes occur in ecosystems- energy flows and is eventually lost, nutrients cycle
and are not lost.
1) Energy flows through ecosystems and is eventually lost as heat. Green organisms such
as plants (called
What is Life?
In this chapter we will learn how living organisms change as they become better adapted
to their environment. Over millions of years, these changes have produced a large number
of different kinds
MARTHA HUNTER/ /DANIEL PAPAJ/KEVIN BONINE EXAM TWO March 6, 2008 LECTURE SECTION: TTH 11:00 AM 12:15 PM
PRINT UA NetID: LAST NAME:_
GENERAL INSTRUCTIONS PRINT your UA NetID and last name above AND on the answer sheet. Color in the answers in the
MARTHA HUNTER/ /DANIEL PAPAJ/KEVIN BONINE EXAM ONE Feb. 7, 2008 LECTURE SECTION: TTH 11:00 AM 12:15 PM
PRINT UA NetID: LAST NAME:_ GENERAL INSTRUCTIONS PRINT your UA NetID and last name above AND on the answer sheet. Color in the answers in th
What is it like to be color blind?
What is achromatopsia?
Acromatopsia is a disease which the eye is missing things called cones.
What it means to have achromatopsia
To be truly a achromat you see no color at all
Ecology Essay Questions
63. Territoriality is the area that a particular species will claim and protect from other
possible competitors within the same region. A rather common example is that of the dog
urinating on a specific place as a claim to its “spo
LAB 6: Applied DNA Technology and Gel Electrophoresis Objective: The objective of this lab is to understand the principles and practices of applied DNA technology by use of agarose electrophoresis and bacteria transformation. Hypothesis: The electric
LAB 4: Plant Pigments and Photosynthesis Objective: The objective of this lab is to compare the photosynthetic rates at varying light intensities and wavelengths using a controlled experiment. Hypothesis: The photosynthetic rate in plants will be hig
LAB 12: Primary Productivity Based on Changes in Dissolved Oxygen Objective: The objectives of this lab are to measure primary productivity based on changes in dissolved oxygen in a controlled experiment and to investigate the effects of changing lig
DNA AND CHROMOSOMES
The Structure and Function of DNA
Using terms from the list below, fill in the blanks in the following brief description of the
experiment with Streptococcus pneumoniae that identified which biological molecule
ENERGY, CATALYSIS, AND BIOSYNTHESIS
Catalysis and the Use of Energy by Cells
Chemical reactions carried out by living systems depend on the ability of some organisms to
capture and use atoms from nonliving sources in the environment. The spe
FROM DNA TO PROTEIN: HOW CELLS READ THE GENOME
From DNA to RNA
RNA in cells differs from DNA in that _.
it contains the base uracil, which pairs with cytosine
it is single-stranded and cannot form base pairs
it is single-stranded
HOW GENES AND GENOMES EVOLVE
Generating Genetic Variation
Which of the following statements is false?
A mutation that arises in a mothers somatic cell often causes a disease in
All mutations in an asexually reproducing
INTRODUCTION TO CELLS
Living systems are incredibly diverse in size, shape, environment, and behavior. It is estimated
that there are between 10 million and 100 million different species. Despite this wide variety of
PROTEIN STRUCTURE AND FUNCTION
Match the basic protein functions in the left column with a specific example of that type
of protein in the column on the right.
_ gene regulatory
CHEMICAL COMPONENTS OF CELLS
Figure Q2-1 depicts the structure of carbon. Use the information in the diagram to choose the
correct atomic number and atomic weight, respectively, for an atom of carbon.
ANALYZING GENES AND GENOMES
Recombinant DNA technologies involve techniques that permit the creation of custommade DNA molecules that can be introduced back into living organisms. These
technologies were first developed in t
DNA REPLICATION, REPAIR, AND RECOMBINATION
The process of DNA replication requires that each of the parental DNA strands be used as a
_ to produce a duplicate of the opposing strand.