Bio2135 Exam

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  • Topic: Cnidaria, Sponge, Digestion
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BIO 2135 - Animal Form and Function Midterm examination Worth either 10% or 15% of your final grade Tuesday February 9, 2010

a) Place your name and student number in the space provided below. Be sure that your name is on the top of each page because the exam will be separated to facilitate marking b) Circle the lab section for your lab. c) Check to be sure that your exam is complete with a total of 12 pages including this one d) Answer all questions in the space provided on the exam. Do not transfer answers to the back of the page e) The exam is out of 95 pts.

Name: ................................................................................................................................... Student No: ......................................................................................................................... Circle your lab section: Thursday: A1-BSC312, Friday: A2-BSC312, A3-BSC330, A4-BSC330 A5-BSC335 A6-BSC335 A7-BSC310

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BIO 2135 - Midterm Examination – February 9, 2010 Name: ................................................................... Student Number: ..................................... 15 pts Part 1. Briefly explain what each of the following biological terms means. Where possible include an example in your definition from a group or an organism to which the term applies.

Planula

Dual gland adhesive system

Pinocytosis

Sporozoite

Statoblast

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BIO 2135 - Midterm Examination – February 9, 2010 Name: ................................................................... Student Number: ..................................... 20 pts Part 2 Answer each of the following multiple choice questions by placing an X in the space to the left of the correct choice. There is only one correct answer for each question.

2.1 These specialized cells in a flatworms osmoregulatory system are the driving force for filtration. __________ A. Flame cells __________ B. Nephrocytes __________ C. Renette cells __________ D. Renal cells __________ E. Nephridiopores

2.2 One of the simplest and most common forms of asexual reprodution in protists is __________ A. Budding __________ B. Fragmentation __________ C. Schizogony __________ D. Binary fission __________ E. Multiple fission 2.3 In free living flatowrms, when rod like contents of these cells swell and hydrate they form a protective, distatesful mucous covering for the body. __________ A. Endocytes __________ B. Mucocytes __________ C. Ectocytes __________ D. Rhabdites __________ E. Flame cells 2.4 Sponge gemmules contain masses of: __________ A; Archeocytes __________ B. Porocytes __________ C. Choanocytes __________ D. Sclerocytes __________ E. Calcium carbonate cells

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BIO 2135 - Midterm Examination – February 9, 2010 Name: ................................................................... Student Number: ..................................... 2.5 The non-living casing of a bryozoan __________ A. Statoblast __________ B. Cystid __________ C. Polypide __________ D. Zooid __________ E. Zooecium 2.6 In heterotrophic protists, intracellular digestion and transport of food occurs in __________ A. Ingestion vacuoles __________ B. Contractile vacuoles __________ C. Egestion vacuoles __________ D. Phagosomes __________ E. Cytopygial vacuoles 2.7 In lophophorates this coelom extends into the tentacles __________ A. Mesocoel __________ B. Metacoel __________ C. Axocoel __________ D. Exocoel __________ E. Endocoel 2.8 The fleshy parts of the a bryozoan colony are called the __________ A. Zoecium __________ B. Zooarium __________ C. Polypide __________ D. Cystid 2.9. A cnidarian skeleton is __________ A. bony __________ B. cartilagenous __________ C. made of spicules __________ D. made of ossicles __________ E. hydrostatic

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BIO 2135 - Midterm Examination – February 9, 2010 Name: ................................................................... Student Number:...
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