unit #3 quiz #5, 2013-2014

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Unit #3 Quiz #5, 2013-2014 Grade: «grade» Subject : «subject» Date: «date»

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Unit #3 Quiz #5, 2013-2014. Grade:. «grade». «subject». Subject:. «date». Date:. 1. Which of the following is NOT released by hydrothermal vents. A. heat. B. large tube worms. C. calcium ions. D. iron ions. 2. A bacterium that undergoes a period of - PowerPoint PPT Presentation

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Page 1: Unit #3 Quiz #5, 2013-2014

Unit #3 Quiz #5, 2013-2014

Grade:«grade»

Subject:«subject»

Date:«date»

Page 2: Unit #3 Quiz #5, 2013-2014

1 Which of the following is NOT released by hydrothermal vents

A heat

B large tube worms

C calcium ions

D iron ions

Page 3: Unit #3 Quiz #5, 2013-2014

2 A bacterium that undergoes a period of severe stress will form a ________ to keep its offspring alive.

A cyst

B capsid

C oocyst

D spore

Page 4: Unit #3 Quiz #5, 2013-2014

3 HCO3- is

A carbonate

B bicarbonate

C carbonic acid

D carbon dioxide

Page 5: Unit #3 Quiz #5, 2013-2014

4 The difinitive host for Toxoplasmosis is:

A humans

B cats

C sheep

D cattle

Page 6: Unit #3 Quiz #5, 2013-2014

5 Which of the following reactions is responsible for fixing nitrogen:

A NH4+ --> NO2

-

B NO2- --> NO3

-

C NO3- --> N2

D N2 --> NH3

Page 7: Unit #3 Quiz #5, 2013-2014

6 What is the required ratio of carbon to nitrogen to phosphorus that is ideal for bacterial growth:

A 1:10:100

B 100:10:1

C 100:1:10

D 10:1:100

Page 8: Unit #3 Quiz #5, 2013-2014

7 Which of the following is NOT a source of nitrates in water sources:

A A leaky septic system

B Runoff from an organic farm

C Animal waste

D Water plants & algae

Page 9: Unit #3 Quiz #5, 2013-2014

8 Which of the following is the smallest living microbial contaminant:

A virus

B bacteria

C protozoan

D helminths

Page 10: Unit #3 Quiz #5, 2013-2014

9 CO32- is

A carbonate

B bicarbonate

C carbonic acid

D carbon dioxide

Page 11: Unit #3 Quiz #5, 2013-2014

10 Which chemical is commonly used to disinfect American water sources

A Chlorine

B Fluorine

C A combination of chloride & alcohol

D Ethyl-alcohol

Page 12: Unit #3 Quiz #5, 2013-2014

11 Which of the following is NOT a correct statement concerning thermal pollution:

A A decrease in thermal pollution will cause an increase in DO

B A decrease in thermal pollution will cause an increase in bacterial growth

C An increase in thermal pollution will cause a decrease in DO

D An increase in thermal pollution will cause an increase in bacterial growth

Page 13: Unit #3 Quiz #5, 2013-2014

12 Methemoglobinemia causes ________ to bind to _______, blocking the uptake of oxygen & causing problems such as “blue baby” syndrome.

A Ammonium, myoglobin

B Ammonia, hemoglobin

C Nitrate, myoglobin

D Nitrite, hemoglobin

Page 14: Unit #3 Quiz #5, 2013-2014

13 Contamination of agricultural land by dissolved salts is problematic because:

A The permeability of the agricultural soil is greatly reduced

B The permeability of the agricultural soil is greatly increased

C The permeability of water used for irrigation is greatly reduced

D The permeability of water used for irrigation is greatly increased

Page 15: Unit #3 Quiz #5, 2013-2014

14 A molecule that will slow down a reaction/maintain a reaction, such as the carbonate system helping to maintain aquatic pH is known as

A an acid

B a base

C a catalyst

D a buffer

Page 16: Unit #3 Quiz #5, 2013-2014

15 Which of the following is the largest source of thermal pollution:

A Power plants using local bodies of water to cool off their equipment

B Plastics introduced during the chemical processing at energy plants

C Water run-off from residential streets that collect oil

D Water run-off from agricultural land

Page 17: Unit #3 Quiz #5, 2013-2014

16 At any given time 30% of the global population is infected with which of the following:

A Trichinella

B Platyhelminthes

C Ascaris

D Tapeworms