Taxonomy PPT Questions

Taxonomy
ppt Questions

Classification

1. How many known species are there?

2. What percent of all organisms that have ever lived is this?

3. Are all organisms on Earth today identified?

4. Define classification.

 

5. What is another term for classification?

6. What do you call scientists that study classification?

7. Classifying organisms makes naming organisms more _____________ and _____________.

8. Classifying prevents ____________ or inaccurate naming.

9. Give two examples of misnomers and explain why they aren’t correct.

 

10. What language is used for scientific naming?

11. Sometimes, scientific names may be ___________ instead of Latin.

12. Why don’t scientists around the world just use more simple, common names for organisms?

 

13.What language is universally used by scientists for naming?

14. Who was the first taxonomist and what two groups did he place organism in?

 

15. How did Aristotle subdivide his two groups?

 

16. Who was first to use Latin for scientific naming?

17. What was the problem with Ray’s names?

18. What 18th century taxonomist developed the naming system still used today?

19. How did Linnaeus group his organisms?

20. Who is the “father of taxonomy”?

Binomial Nomenclature

21. What is Linnaeus’s naming system called?

22. Explain binomial nomenclature.

 

23. Besides Latin, what other language is sometimes used for scientific names?

24. How do scientific names appear in print?

25. What must be done to a scientific name when you are writing it?

26. Give an example of a common and scientific name for an animal.

 

27. Where can you find the rules for naming organisms?

28. All scientific names must be approved by ________________ ___________ ______________.

29. Why do naming congresses have to approve names?

 

Taxonomic Groups

30. What is a taxon?

 

31. What is plural for taxon?

32.There is a ______________ of groups that goes from the broadest grouping to the most _____________ grouping.

33. Name the 8 taxon in order from broadest to most specific.

 

 

34. What is the NEWEST and BROADEST taxon?

35. Instead of the taxon phylum, what other taxon is used for plants at this level?

36. What is the most specific taxon?

37. Write the sentence used to help remember the 8 most important taxonomic levels.

 

38. Complete the following taxonomic table:

 

Classification for Humans
Taxonomic Level Taxon
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

 

Domains of Organisms

39. How many domains are there?

40. Name the 3 Domains.

 

41. What are the main characteristics of Archaea and Eubacteria?

 

42. What are the main characteristics of the Domain Eukarya?

 

43. What Domain of organisms probably evolved first?

44. Where do Archaea live? Give some examples.

 

45.Name an Archaean.

46. Where are eubacteria found?

 

47. Some bacteria cause ______________ but many act as decomposers & are important to the ______________.

48. Some members of eubacteria live in the __________ of animals.

Kingdoms

49. The Domain Eukarya is divided into how many kingdoms?

50. List the 4 kingdoms of Eukarya and tell what organisms are in each group.

 

 

51. Which 2 kingdoms contain all multicellular members?

52. List the main characteristics of the Kingdom Protista.

 

53. Microscopic organisms found in pond water are most likely in the kingdom _______________.

54. All members of the Kingdom Fungi are _____________ except for unicellular ____________.

55. What type of heterotrophic organism are fungi?

56. Explain what it means to be an absorptive heterotrophic.

 

57. The cell walls of fungi are made of ______________.

58. Members of the kingdom Plantae are all ________________ and _____________.

59. What do plants use as their energy to make food?

60. Name the food making process of plants.

61. Plant cell walls are made of _______________.

62. Members of the Kingdom Animalia contain all of the multicellular _____________ on Earth.

63. Animals are ______________ heterotrophs that feed on __________ or other __________.

64. Define ingestive heterotroph.

 

65. Complete the following table for characteristics of each kingdom:

Kingdom Organization Type of Nutrition Examples
Protista
Fungi
Plantae
Animalia

66. A Genera may contain a number of different ___________.

67. What Genera is an exception to this?

68. Which Kingdom has the largest number of different kinds of organisms?

69. What two groups are in the plant kingdom?

 

Basis for Modern Taxonomy

70. List three examples of things used as a basis for modern taxonomy.

     a.

     b.

     c.

71. What are homologous structures?

 

72. What is an embryo?

73. At the molecular level, similarities in ___________, __________, or the __________ __________ sequence of proteins can be a basis for grouping organisms together.

74. Give an example of homologous structures show similarities among organisms in the same taxon.

 

 

 

75. Name 5 organisms that have similar embryonic development. To what taxon do these organisms belong?

 

76. What is a cladogram?

 

77. Using the following cladogram, name the organisms that share 4 of the 5 characteristics.

78. What characteristic(s) do the grouper and lamprey share?

 

79. What characteristic is found in all the animals EXCEPT the lancelet?

80. What is a dichotomous key?

 

81. When using a dichotomous key, you should make sure you ___________ both characteristics and either ____________ the organism OR go to ____________ set of characteristics.

 

82. Use the following dichotomous key to identify the picture of each organism.

 

1a Tentacles present – Go to 2
1b Tentacles absent – Go to 6
2a Eight Tentacles – Octopus
2b More than 8 tentacles – 3
3a Tentacles hang down – go to 4
3b Tentacles upright–Sea Anemone
4a Balloon-shaped body–Jellyfish
4b Body NOT balloon-shaped – 5

 

 

 

Starfish Dissection

 

Starfish Dissection

Introduction:

Echinoderms are radially symmetrical animals that are only found in the sea (there are none on land or in fresh water). Echinoderms mean “spiny skin” in Greek. Many, but not all, echinoderms have spiny skin. There are over 6,000 species. Echinoderms usually have five appendages (arms or rays), but there are some exceptions.

Radial symmetry means that the body is a hub, like a bicycle wheel, and tentacles are spokes coming out of it (think of a starfish). As larvae, echinoderms are bilaterally symmetrical. As they mature, they become radially symmetrical.

Most adult echinoderms live on the bottom of the ocean floor. Many echinoderms have suckers on the ends of their feet that are used to capture and hold prey, and to hold onto rocks in a swift current.

Sea Stars
Sea StarSea stars (group name Stelleroidea) are sometimes called starfish, though they are not real fish (they lack both vertebrae and fins). There are two sub-types of sea stars:

  • Asteroideas are the true sea stars and sun stars.
  • Ophiuroideas are brittle stars and basket stars.

The differences between the two sub-types lies in how the arms connect to the central disk. Ophiuroids have arms that do not connect with each other. There is a distinct boundary between arm and central disk. Asteroids have arms that are connected to each other. Also, it is harder to tell with asteroids where the central disk ends and the arms begin.

The sea star’s top surface (or skin) looks spiny if you examine it. If you look very closely you will notice that there are different types of growths on the surface. Some bumps are used to absorb oxygen, they are called dermal branchiae. Pedicellaria are pincher-like organs used to clean the surface of the skin. Barnacle larvae could land on a sea star and start growing if it were not for these organs.

How Do Sea Stars Move?
Underside of a Sea StarEach sea star had hundreds of tiny feet on the bottom of each ray. These are tube feet, or podia. These tiny feet can be filled with sea water. The vascular system of the sea star is also filled with sea water. By moving water from the vascular system into the tiny feet, the sea star can make a foot move by expanding it. This is how sea stars move around. Muscles within the feet are used to retract them.

Each ray of a sea star has a light sensitive organ called an eyespot. Though it can not see nearly as well as we do, sea stars can detect light and its general direction. They have some idea of where they are going.

Sea Star Anatomy

Can Sea Stars Grow New Arms?
Given enough time, sea stars can grow back arms that have been damaged or removed. For a few species, the severed arm can grow back into a complete sea star! For most sea stars, however, a severed limb dies.

What Do Sea Stars Eat?
Sea stars eat many things. A sea star’s diet can include: barnacles, snails, sea urchins, clams, and mussels. A few species, such as the spiny star of the North Atlantic, eat other sea stars! Many sea stars eat mussels and clams in an interesting way. They surround the shell and use the suckers on their feet to pull the two shells (or valves) apart. The sea star has enough force in its arms to actually bend the shell! This creates an opening between the two shells that is only .01 inches wide. Using this tiny gap, the sea star puts its stomach into the clam’s shell and eats its insides. When it is done, nothing is left but an empty shell.

Materials:

Preserved starfish, dissecting pan, scissors, scalpel, forceps, T-pins, pencil, lab apron, safety glasses

Procedure:

 

 

Dorsal view of starfish showing external anatomy

Ventral view of starfish showing external anatomy

Dorsal view of a dissected starfish showing rectal cecum, anus, madreporite, pyloric stomach, pyloric duct

Dorsal view of a dissected starfish showing madreporite, stone canal, cardiac stomach, and ampullae

Dissection showing where cardiac stomach opens into the mouth

Close up of madreporite and stone canal

Dorsal view of a dissected starfish showing pyloric caecum and pyloric ducts

Dorsal view of a dissected starfish showing gonads and ampullae

Ventral view of starfish showing external anatomy

Strawberry DNA

 

Strawberry DNA Extraction


Adapted from a lab by C. Sheldon

Introduction:

DNA is found in cells from Animals and Plants.  DNA is a double stranded macromolecule composed of nucleotide bases pairing Adenine with Thymine and Guanine with Cytosine.  DNA can be extracted from cells by a simple technique with household chemicals, enabling students to see strands of DNA with the naked eye.

Purpose:

To extract DNA from the fruit of a strawberry plant

Safety Precautions:

  • Do not eat or drink in the laboratory.
  • Wear Apron & Safety Goggles.

Materials / Equipment (per student group):

1. heavy duty zip-lock baggie

2.  1 strawberry (fresh or frozen and thawed)

3.  cheesecloth

4.  funnel

5.  100 ml beaker

6.  test tube

7.  wooden coffee stirrer

8. DNA Extraction Buffer (One liter: mix 100 ml of shampoo (without conditioner), 15 g NaCl, 900 ml water OR 50 ml liquid dishwashing detergent, 15 g NaCl and 950 ml water)

9.  Ice-cold 95% ethanol or 95% isopropyl alcohol

Procedure:

1.  Place one strawberry in a zip lock baggie and carefully press out all of the air and seal the bag.

2.  Smash the strawberry with your fist for 2 minutes.

3.  Add 10 ml extraction buffer to the bag and carefully press out all of the air and seal the bag.

4.  Mush again for one minute.

5.  Filter through cheesecloth in a funnel into beaker. Support the test tube in a test tube rack.

6.  Discard the extra mashed strawberry.

7.  Pour filtrate into test tube so that it is 1/8 full.

8.  Slowly pour the ice-cold alcohol into the tube until the tube is half full and forms a layer over the top of the strawberry extract.

9.  At the interface, you will see the DNA precipitate out of solution and float to the top. You may spool the DNA on your glass rod or pipette tip.

10.                    Spool the DNA by dipping a pipette tip or glass rod into the tube right where the extract layer & alcohol are in contact with each other. With your tube at eye level, twirl the rod & watch as DNA strands collect.

Prelab:

Take a look at the sketch of the plant cell below. The chromosomes (which are made of DNA) are in the nucleus. This is the only place where DNA is located.

 

Now match the procedure with what it is doing to help isolate the DNA from the other materials in the cell.

 

_____1. Break open the cell A. Squish the fruit to a slush

 

_____2. Dissolve cell membranes B. Filter your extract through cheesecloth
_____3. Precipitate the DNA (clump the DNA together C. Mix in a detergent solution
_____4. Separate organelles, broken cell wall, and membranes from proteins, carbohydrates, and DNA D. Layer cold alcohol over the extract

 

 

DNA Extraction Table

AMOUNT ADDED OR OBTAINED INITIAL COLOR PURPOSE
BUFFER
(soap-salt mixture)
STRAWBERRY
COLD ALCOHOL
DNA

SKETCH OF TEST TUBE WITH CONTENTS

 

 

Questions:

1.  Where can DNA be found in the cell?

2.  Discuss the action of the soap (detergent) on the cell.  What is the purpose of the soap in this activity?

3.  What was the purpose of the Sodium Chloride? Include a discussion of polarity and charged particles.

4.  Why was the cold ethanol added to the soap and salt mixture?

5.  Describe the appearance of your final product?

6.  Draw a diagram of DNA containing 5 sets of nucleotide bases labeling the hydrogen bonds between the bases.

 

Biology Study Guides Summary of Links

Biology Study Guides
All Materials © Cmassengale

Safety & Equipment Chromosomes Flat & Round Worms Unsegmented Worm Review
Study of Life
Intro to Biology Review
Chapter 1 Introduction
Taxonomy
Taxonomy Review

Cladogram Practice
Mollusks
Mollusk Review
Chemistry

Chemistry Review

Evolution
Evolution Review
Annelids
Annelid Review
Biochemistry
Biochemistry Review
Viruses

Virus Review

Arthropods
Arthropod Review  
Cells
Cells – Units of Life
Cells & Their Functions
Cell Review

Cell Study Guide
Bacteria & Viruses
Bacteria & Viruses
Bacteria Review
Insects

Insect Review


Homeostasis & Transport

Handout – TRANSPORT
Cell Membrane Review
Transport Study Guide
Fungi
Fungi Review
Echinoderms
Echinoderm Review 
Photosynthesis
Photosynthesis Review
Protists
Protist Review
Fish
Fish Review  
Photosynthesis & Respiration

Photosynthesis & Cell Respiration

Mosses & Ferns Amphibians
Amphibian Review  
Cellular Respiration
Cell Respiration Review
Seed Plants Reptiles
Reptile Review  
Nucleic Acids
Nucleic Acid Review
Plant Structure & Function Birds
Birds Review 
Cell Growth & Division
Cell Cycle & Mitosis
Cell Reproduction Review
Introduction to Animals
Intro to Animals Review
Invertebrate Table
Mammals

Mammal Review  

Genetics
Genetics flashcards
Genetics Review
Sponges & Cnidarians
Review Worksheet
Ecology
Ecology Review

Cycles Worksheet  
Biogeochemical worksheet 
1st Semester 2003
2nd Semester  2003
1st Semester 2004
2nd Semester  2004
1st Semester 2006
1st Semester
2012

 

 

Biology I                


PreAP Biology