BIOL 1202 : Test 3 Questions

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azuremammoth471

15 Mar 2019

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True or false: guard cells expand when k+ gets pumped into the cells. True: which two elements make up more than 90% of the dry weight of plants, carbon and nitrogen, oxygen and hydrogen, nitrogen and oxygen, oxygen and carbon, carbon and potassium. Answer: d: the bulk of a plant"s dry weight is derived from, soil minerals, co2, the hydrogen from h2 o, the oxygen from h2o, the uptake of organic nutrients from the soil. Answer: b: which soil mineral is most likely leached away during a hard rain, na, k, ca+, no3, h+ Pull up a root and find it has bulbs. Cut grass at ground level, come back and its just as tall. What caused it to grow: what is the mutualistic association between roots and fungi called, nitrogen fixation, rhizobium infection, mycorrhizae, parasitism. They have adventitious roots and absorb stuff through their leaves: root hair enhancement.

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THIS IS PART A OF A QUESTION WITH ITS SUBPARTS

What approach could be used to determine if nitrogen availability in the soil directly limits the nutrient concentration of Metrosideros polymorpha leaves?

a)draining water from experimental plots where M. polymorpha is present

b) adding a known quantity of nitrogen to several experimental plots where M. polymorpha is present

c) removing leaf litter from a non-forested experimental plot and placing it into another where M. polymorpha is present

d) removing leaf litter from several experimental plots where M. polymorpha is present

e) Nutrient concentration in leaves cannot be accurately measured.

Decomposition would be highest in which of the following ecosystems?

a) temperate deciduous forest

b)desert

c) rain forest

d) coniferous (boreal) forest

e) arctic tundra

Which of the following is a result found by Dr. Schuur in this study?

View Available Hint(s)

Which of the following is a result found by Dr. Schuur in this study?

a. Low soil oxygen levels leads to an increase in the rates of decomposition and mineralization.

b. Litter quality has no effect on decomposition.

c. Lower soil nitrogen leads to higher nitrogen concentration in leaves.

d. High precipitation leads to low soil oxygen levels.

e. Increased nitrogen availability is responsible for the decline in net primary productivity across the rainfall gradient within his study area.

Why does soil oxygen concentration have a direct relationship to decomposition rates?

View Available Hint(s)

Why does soil oxygen concentration have a direct relationship to decomposition rates?

a. Soil oxygen reduces the presence of soil fungi (e.g., mycorrhizae).

b. Soil oxygen influences the concentration of carbon dioxide available to leaves.

c. Soil oxygen affects the uptake of nutrients by plant roots.

d. Soil oxygen allows microbes to break down carbon molecules.

e. Soil oxygen affects the uptake of water by plant roots.

The limiting factor on net primary productivity (NPP) in species-rich, lowland ecosystems is __________.

a. carbon

b. nitrogen

c. phosphorus

d. precipitation

e. soil oxygen

No handwriting please and only answer if you are gonna complete all of them from 30-40. Thanks in advance and hope you are having a great day today.

Select the correct answer:

30. How would amino acids from the bloodstream move across a cell membrane?

	a.	diffusion
	b.	osmosis
	c.	facilitated diffusion
	d.	active transport
	e.	endocytosis

31. Which of the following is not a greenhouse gas?

	a.	water vapor
	b.	carbon dioxide
	c.	gaseous nitrogen
	d.	methane
	e.	nitrous oxide

32. The greenhouse effect is most similar to

	a.	heating up the air inside a car by parking it in the sun
	b.	warming the air for a hot-air balloon with a propone burner
	c.	burning kerosene in a heater to warm up the air inside a cold house
	d.	growing plants in your office to reduce indoor air pollution
	e.	cooking food with a charcoal grill

33. Temperature is a measure of

	a.	the potential energy in a substance
	b.	how fast the molecules in a substance are moving
	c.	the energy lost from a substance to its surroundings
	d.	how much heat is being absorbed by a substance

34. Fossil fuels include all the following EXCEPT

	a.	oil
	b.	coal
	c.	hydrogen gas
	d.	natural gas
	e.	gasoline

35. On Earth,________is/are the largest reservoir of carbon dioxide and heat.

36. Chemical work within cells is powered by

	a.	NAD+
	b.	NADPH
	c.	ADP
	d.	ATP

38. Which of the following processes creates the most ATP per glucose molecule metabolized?

	a.	glycolysis
	b.	fermentation
	c.	photorespiration
	d.	aerobic cellular respiration
	e.	the light reactions of photosynthesis

39. In cellular respiration,_______is produced during_______.

	a.	oxygen; the citric acid cycle
	b.	carbon dioxide; the citric acid cycle
	c.	oxygen; the light reactions
	d.	carbon dioxide; the light reactions

40. Metabolic pathways that require oxygen are referred to as

	a.	aerobic
	b.	anaerobic
	c.	photosynthetic
	d.	fermentative

Assigned as

Homework

The drought associated with global warming is due to to which of the following?

The dramatic decrease in land and food cultivation which does not release enough green house gases in the atmosphere.

The dramatic decrease in green house gases in the atmosphere due to the rapacious appetite mankind has for world domination.

The dramatic increase in green house gases in the atmosphere due to the rapacious appetite mankind has for land, food, and water that are playing a major role in global warming.

All of the above answers are correct

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Chinese dynasties depended on ______________ for the growth of their rice crops.

Monsoons

Slaves

Fertile soil

Dry weather

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Which of the following is a reason as to why droughts are so important?(Be complete with your answer)

As a consequence of a decrease in food production, starvation and migration will cause international unrest

It helps promote well being through the world and population growth All of these

As a consequence of a decrease in wheat, rice, cattle, etc, people will eat more and live longer.

All of these answers are correct

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The hydrogen ion from water is a key ingredient for which of the following?

producing the ATP that water needs to develop its own protein, carbohydrates and lipids.

Breaking down the nutrients that the plant needs to develop its own lipids.

Producing the mitochondria that the plant needs to develop its own protein and lipids.

Producing the ATP that the plant needs to develop its own protein, carbohydrates and lipids.

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How do human activities interfere with the water cycle?

Removing or damaging the worldâs forests

Polluting water

Drawing large amounts from surface sources and groundwaters

All of these answers are correct

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Which of the following describes guard cells?

Cells that release water vapor from the plant into the trunk.

Cells that release water vapor from the plant into the ground.

Cells that release pesticides in order to protect the plant.

Cells that release water vapor from the plant into the atmosphere.

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How much does a tree transpire water per year?

50,000 - 100,000 gallons

1,000 - 10,000 gallons

5,000 - 10,000 gallons

5,000 - 50,000 gallons

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CO2 and H20 have which of the following effects in common?

Act upon soil quality

Act upon cloud quality

Act upon the salinity of basins

Act upon the pH of the ocean

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If the population of the earth continues to grow there will not be enough ______________ for the young populations in ______________ countries.

Food; developed

Food; western

Work; european

Work; developing

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Match the word with its correct definition (match numbered words (1,2,3,4) with definitions (A,B,C,D))

Transpiration

conversion of liquid water into gas or water vapor

Evaporation

downward movement of liquid water through soil

Infiltration

movement of liquid water from plant roots and upward in vessels and into the atmosphere from the leaves as water vapor

The Water Cycle

Operates similarly to other biogeochemical cycles in which the chemicals associated with plant and animal nutrients move through the atmosphere

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BIOL 1202 : Test 3 Questions

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