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bio lab final
lab final
36
Biology
Undergraduate 1
12/01/2013

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Cards

Term
What is an observation?
Definition
Perception of a problem that cannot be explained with the presently accepted facts.
Term
What is a hypothesis?
Definition
The suggestion of a relationship that might explain the cause or reason for the problem.
Term
Why do you need a control?
Definition
A control is needed in order to compare the differences between the experiment and the control. Any difference can be attributed to the experimental variable.
Term
What do you do with the data you collected during an experiment? What section of a lab report would you put that in?
Definition
You collect the data and conduct an analysis.
Term
Given some data, be able to make a proper graph, labeling axes correctly and giving the graph a title.
Definition
X=dependent/effect
Y=independent/cause
Term
Be able to do some metric conversions
Definition
KHDUDCM
Term
Given some data regarding a predator/prey experiment, be able to tell me which organisms are best suited to the environment and why.
Definition
ones that blend in well are more camouflaged.
Term
What is a benedict’s test? What does it test for? What is a positive result?
Definition
Blue solution that tests for sugars. Positive result is an orange colored solution at the bottom of the tube.
Term
What is the iodine test used for? What is a positive result?
Definition
Detects starch. A positive result turns blue black.
Term
What is the biuret test used for? What is a positive result?
Definition
Detects proteins. Positive results turns blue solution into purple.
Term
What is the Sudan IV test used for? What is a positive result?
Definition
Tests for lipids. Positive result is when the red granules dissolve. won't dissolve is aqueous solutions.
Term
What is an enzyme?
Definition
biological molecules that produce a reaction by interacting with the substrate. It then produces a product. End in “ase”
Term
What factors affect enzyme activity?
Definition
Ph, temperature changes can affect enzyme activities.
Term
Be able to identify the parts of a microscope. (5-2)
Definition
Ocular ,Nose piece
,Objectives,Stage,Iris diaphragm ,Mechanical stage,Base,Fine adjustment
Coarse adjustment
Arm
Term
Be able to identify a plant and animal cell under a microscope
Definition
animal cells are more likely to be round, plant cells are more square, ridgid
Term
identify a sperm cell
Definition
has a flagellum
Term
Identify adipose tissue
Definition
fat tissue. round and sparse
Term
What is diffusion?
Definition
movement of molecules from a region of higher concentration to one of lower concentration
Term
What is osmosis?
Definition
diffusion of a solvent across a selectively permeable membrane.
Term
What is hypertonic?
Definition
shrinks, shrivels up. high concentration outside, low inside
Term
What is hypotonic?
Definition
bloats, burst. high concentration inside, low outside

think hypodermic needle goes IN
Term
What is isotonic?
Definition
equal concentration in and out
Term
Given these terms be able to tell me whether water will move in or out of a cell and what will happen to that cell
Definition
hypo goes in, like a needle. bursts
hyper goes out, shrinks.
Term
Give me the complete balanced equation for cellular respiration.
Definition
C6 H12 O6 +6 O2---->6CO2 6 H2O + ATP/ENERGY
Term
How do you measure the rate of respiration?
Definition
measured by measuring oxygen production or temperature increase
Term
Give me the complete balanced equation for photosynthesis.
Definition
6CO2 + 6H2O → C6H12O6 + 6O2
Term
How could you measure that photosynthesis is occurring?
Definition
1) Measuring the uptake of CO2
2) Measuring the production of O2
Term
Given a set of conditions, be able to tell me where the greatest rate of photosynthesis would occur.
Definition
bright light, high co2
Term
What are the phases of the cell cycle?
Definition
G1, S , g2, m
Term
What phase takes the longest?
Definition
G1
Term
What are the phases of cell division?
Definition
interphase, prophase, metaphase, anaphase, telophase. IPMAT
Term
What phase takes the longest?
Definition
prophase
Term
Given a karyotype, be able to tell me if it is female or male and normal or abnormal
Definition
male XY female XX
Term
What is electrophoresis?
Definition
Gel electrophoresis is a method for separation and analysis of macromolecules (DNA, RNA and proteins) and their fragments, based on their size and charge
Term
What is a restriction enzyme? What does it do? What does it make?
Definition
restriction enzyme cuts DNA molecules into bases pairs that for restriction sites.
Term
What is a DNA fingerprint? What does it show?
Definition
DNA fingerprint is a unique imprint on everyones fingers. DNA is negatively charged.
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