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Exam 3 Biology 1307

1.      True or False. All protists are eukaryotic.

A.     true

B.     false


2.      Chloroplasts arose via _____.

A.     endosymbiosis of dinoflagellates

B.     endosymbiosis of cyanobacteria

C.     endosymbiosis of fungi

D.     endosymbiosis of euglenids


3.      According to the endosymbiosis supposition, how wide membranes should a mitochondrion possess?

A.     One

B.     Three

C.     Two

D.     Zero


4.      You are dedicated an mysterious organism to identify. It is unicellular and heterotrophic. It is motile, using wide brief extensions of the cytoplasm. It has well-developed organelles and two nuclei, one vast and one slight. This organism is most mitigated to be a ________.

A.     foraminiferan

B.     diatom

C.     ciliate

D.     dinoflagellate

E.      slime mold


5.      Which of the subjoined statements is agreeing after a while the assumption that protists are paraphyletic?

A.     There is no beggarly set of synapomorphies that eliminate a protist

B.     Protists all distribute a beggarly set of synapomorphies.

C.     Protists are all balance unsophisticated than fix places and fleshlys.

D.     Protists do not distribute a sole beggarly founder.


6.      Encouraging the development (via nutrient fertilization) of photosynthetic protists in marine environments may aid bring global fierying owing _____.

A.     the acceptiond oxygen expenditure by vast populations of photosynthetic protists achieve acception photoform in fix places

B.     photosynthetic protists are atomary consumers in wide marine stay chains

C.     photosynthetic protists fix radiant carbon dioxide, decreasing radiant carbon dioxide levels

7.       Encouraging the development (via nutrient fertilization) of photosynthetic protists in marine environments may aid bring global fierying owing ________.

A) photosynthetic protists are atomary consumers in wide marine stay chains

B) photosynthetic protists fix radiant carbon dioxide, decreasing radiant carbon

dioxide levels

C) the acceptiond oxygen expenditure by vast populations of photosynthetic protists achieve acception photoform in fix places

D) photosynthetic protists would acquit a lot of oxygen, and fertilizing them would acception levels of oxygen in the atmosphere


8.      Which of these taxa includes letter that product strong toxins that can creator vast fish kills, corrupt shellfish, and pollute ethnicals?

A.     red algae

B.     dinoflagellates

C.     diplomonads

D.     euglenids

9.      Which of the subjoined force be a fruit of adding a minor consumer to the aquatic ecoorder in the congenial illustration?

A.     a inferior in the compute of atomary consumers

B.     a inferior in the population of decomposers

C.     an acception in radiant carbon dioxide

D.     an acception in the population of scavengers

E.      a inferior in the carbon sink


10.  The Irish potato famine was creatord by an organism that belongs to which letter?

A.      Phytophtorainfestans

B.      Trichomonas vaginalis

C.     Giardia spp.

D.     Trypanozomacruzi

11.  Which of the subjoined eukaryotic lineages includes letter that all closing operationing mitochondria?

A.     Excavata

B.     Rhizaria

C.     Amoebozoa

D.     Stramenopila


12.  Pseudopods that can effect phagocytosis and possess the force to alter their pattern are generally diagnosis of which collocation?

A.     radiolarians

B.     amoebas

C.     slime molds

D.     oomycetes


13.  Which of the subjoined is a synapomorphy that eliminates all bleak algae and fix places?

A.     Seeds                     B. Vascular construction        C.  Cell forbearances   D,  Photosynthetic chloroplasts

14.  One of the fish in your aquarium dies. Adding which protist to the soak would tolereprove you to forsake flushing the inanimate fish by speeding its sinking?

A.     an apicomplexan

B.     a dinoflagellata

C.     a soak mold

D.     a ciliate

E.      a euglenid


15.  According to the endosymbiotic supposition, why was it adaptive for the vastr (host) cell to hold the engulfed cell erratic, rather than ordering it as stay?

A.     The engulfed cell granted the army cell after a while adenosine triphosphate (ATP).

B.     The engulfed cell granted the army cell after a while carbon dioxide.

C.     The engulfed cell tolerateed the army cell to metabolize glucose.

D.     The army cell was efficient to survive anaerobic stipulations after a while the engulfed cell erratic.

E.      The army cell would possess been polluteed if it had ordered the engulfed cell.


16.  Alternation of generations occurs in some protists. Which of the subjoined represents the set-right continuity of equalts for this enactment of plurality?

A.     gametophyte → gamete → disincorporeprove → sporophyte → spore → gametophyte

B.     sporophyte → spore disincorporeprove → gametophyte → gamete → sporophyte

C.     gametophyte → disincorporeprove → sporophyte → spore → gamete → gametophyte

D.     gamete → disincorporeprove → gametophyte →spore → sporophyte → gamete


17.  In examining a protist, you regard that it closings a cell forbearance, and has motion after a while cytoplasmic streaming. These facts tolereprove you to distrust that the letter belongs to which of the subjoined protist collocations?

A.     Excavata

B.     Stramenopila

C.     Rhizaria

D.     Alveolata

E.      Amoebozoa


18.  Chagas illness is stretch by the “kissing bug”.  This illness favor 16-18 darling vulgar encircling the universe and creators environing 50,000 deaths year-by-year and is creatord by which protist?

A.      Giardia

B.      Trichomonas vaginalis

C.     Trypanosoma cruzi

D.     Plasmodioum


19.  Dysentery is creatord by _______________ and creators afflictive diarrhea.  It is for-the-most-separeprove stipulated in countries after a while a fiery latitude and thin sanitary stipulations.  In some places it is notorious as “Montezuma’s revenge”.  Which of the subjoined protists creators dysentery

A.      Entamoeba histolytica

B.      Phytophthora infestans

C.     Plasmodioum

D.     Dinoflagellates


20.  What impression achieve the waste of fix places possess on the befoul?

A.     Increase befoul stability

B.     Increase befoul erosion

C.     Increase nutrient levels     

D.      Decrease deportment temperature


21.  The senior operation of the medicinal compounds in places is to _____.

A.     as protection opposing herbivores

B.     attract pollinators for germ dispersal

C.     attract insects and birds to stretch germs and fruits

D.     defend the place opposing microbes


22.  The most plain founders of fix places were probably _____.

A.     liverworts and mosses        B. bleak algae  C. kelp (brown alga)    D. cyanobacteria


23.  What illustration indicates the motion of places from soak to fix?

A.     sporopollenin to prohibit evaporation from concessions

B.     waste of compositions that product spores

C.     remnants of chloroplasts from photosynthesizing cells

D.     waxy cuticle to inferior evaporation from concessions


24.  Which of these age intervals, established on place fossils, came conclusive (most of-late)?

A.     carboniferous swamps after a while hercules horsetails and ferns

B.     agitate and change of angiosperms

C.     subsidence of fix by present liverworts and mosses

D.     vast development of gymnosperm forests


25.  Angiosperms are the most auspicious worldly places. Which of the subjoined features is uncontemptible to them and aids totality for their victory?

A.     embryos enclosed after a whilein germ coats

B.     sperm cells after a whileout flagella

C.     fruits extreme germs which include the place nucleus

D.     coil pollination


26.  Protists and bacteria are collocationed into divergent domains owing _____.

A.     bacteria are not made of cells

B.     protists possess a membrane-bounded kernel, which bacterial cells closing

C.     protists eat bacteria

D.     protists are photosynthetic


27.  The message gymnosperm refers to places _____.

A.     after a while "naked germs" that do not product gems

B.     that are non-vascular

C.     that gem

D.     after a while germs defended after a whilein a fruit


28.  What stroke gives germs an utility balance spores?

A.     Protected from the environment

B.     Small in size

C.     Contain nutrients

D.     Long-lived


29.  Which of the subjoined was a brave to the prosperity of the exaltedest fix places?

A.     desiccation

B.     too considerable sunlight

C.     a briefage of carbon dioxide

D.     fleshly predation


30.  _____ are angiosperms.

A.     Roses

B.     Fiddlehead ferns

C.     Sphagnum mosses

D.     Pine trees


31.  Primary productrs such as places and bleak algae ____________.

A.     Convert ssinconsiderable disposition (light) to chemical disposition (sugars)

B.     Decompose sinkinging representative in befoul to product disposition

C.     Consume other organisms to product chemical disposition (sugars) and ssinconsiderable disposition (light)

D.     Produce CO2 by effecting photosynthesis


32.  Plants prepare wide ecoorder services including evolution of oxygen and possession the befoul.  What is an ecosystem?

A.     All the organisms or biotic contents in a detail area

B.     All the food and nonfood components in a detail area

C.     The nonfood or abiotic components in a detail area

D.     All places and fleshlys in a dedicated region


33.  Stoma (plural: stomata) are____________.

A.     Small notoriousings designated pores enfolded by specialized escort cells

B.     Watertight sealants productd by places to forsake desiccation

C.     Specialized organelles in place cells to effect photosynthesis

D.     Modified concessions in a place to forsake predation by herbivores


34.  Flowers, the reproductive organ of a flourishing place, has two key reproductive compositions designated:

A.     Seed and pistil

B.     Stamen and fruit

C.     Stamen and pistil

D.     Seed and anther


35.  The three obscure ways in which pollen is transported from place to place or gem to gem are:

A.     Animals, coil, soak

B.     Wind, fungi, soak

C.     Animals, bees, coil

D.     Fungi, soak, insects


36.  _____________ is a order by which pollen is transferred in places.

A.     Pollen grains

B.     Style

C.     Pollination

D.     Translocation


37.  True or False.  The womanly separeprove of the gem is the stamen.

A.     True           B.   False


38.  True or False.  The obscure operation of the endosperm is to prepare nutrients for the nucleus place.

A.     True           B.  False


39.  True or False.  Plants and not algae are the obscure atomary productrs in Earth’s oceans.

A.     True           B.   False


40.  True or False.  Bryophytes such as mosses closing vascular construction (xylem and phloem).

A.     True           B.  False

41.  Root hairs are most great to a place owing they ________.

A.     anchor a place in the befoul

B.     store starches

C.     acception the deportment area for absorption

D.     prepare a habitat for nitrogen-fixing bacteria

E.      include xylem construction


42. As fuels, forest and coal ________.

A) are the obscure fuel sources in industrialized countries today.

B) are twain constructed from food or fossil places.

C) are twain constructed inferior constraining obscure in the Earth.

D) are sustainefficient as they are equal now being made at exalted reproves.


43.  Molecular phylogenies illusion all fix places are a monophyletic collocation. This suggests ________.

A) there were wide divergent transitions from aquatic to worldly habitats

B) coil-pollinated places arose exaltedest

C) fix places possess inferiorgone a change since they exaltedest colonized worldly habitats

D) there was a sole transition from aquatic to worldly habitats


44. Which of these age intervals, established on place fossils, came conclusive (most of-late)?

A) vast development of gymnosperm forests

B) Silurian-Devonian explosion after a while fossils of place lineages includeing most of the senior morphological innovations

C) subsidence of fix by present liverworts and mosses

D) agitate and change of angiosperms

E) carboniferous swamps after a while hercules horsetails and lycophytes


45. Why are germless vascular places considered paraphyletic rather than monophyletic?

A) Some of the collocations after a whilein the germless vascular places are balance air-tight cognate to each other than to other collocations (such as Lycophyta).

B) They distribute a balance novel beggarly foinferior after a while germed places than they do after a while the non-vascular places.

C) All of the collocations includeed after a whilein the germless vascular places do not possess the corresponding founder.

D) The collocation includes their beggarly foinferior but besides the germed family of that corresponding founder.


46. Which set includes the most air-tight cognate messages?

A) megasporangium, megaspore, pollen, ovule

B) microsporangium, microspore, egg, ovary

C) megasporangium, megaspore, egg, ovule

D) microsporangium, microspore, carpel, ovary


47. In the order of change of generations, the ________.

A) sporophyte is haploid and products gametes

B) sporophyte is diploid and products spores

C) gametophyte is haploid and products spores

D) gametophyte is diploid and products gametes

E) spores embody to construct a zygote


48.  Where are you LEAST mitigated to see bleak algae?

A) as pink snow in the mountains in summer

B) growing symbiotically after a while fungi in lichens or after a while some invertebreprove fleshlys

C) growing unconnectedly on dry buffet in meadows

D) growing unconnectedly on wet buffet in ponds and lakes

E) unmoulded in seas and oceans


49. When a mosquito vitiated after a while Plasmodium exaltedest bites a ethnical, the Plasmodium ________.

A) gametes amalgamate, constructing an oocyst

B) cells defile the ethnical liver cells

C) cells creator lysing of the ethnical red class cells

D) oocyst inferiorgoes meiosis


50. Carbon dioxide enters the secret immeasurablenesss of the leaf through the ________.

A) cuticle

B) epidermal trichomes

C) stoma

D) phloem

E) forbearances of escort cells


51. Which separeprove of a place absorbs most of the soak and inanimates captured up from the befoul?

A) stem cap

B) stem hairs

C) the misty separates of the stems adjacent the corrupt of the stem

D) storage stems

E) sections of the stem that possess minor xylem


52. When an fleshly cell is placed in a hypotonic discerption and soak enters the cell via osmosis, the dimensions of the cell acceptions until it bursts. This does NOT bechance to place cells, owing ________.

A) they possess vast convenient vacuoles, which prepare wide immeasurableness for storage of incoming soak

B) the compromise of their plasma membranes disagrees from that of fleshly-cell plasma membranes in a way that prepares considerable superior strength

C) they possess cell forbearances, which frustreprove the beginning of soak by osmosis

D) they possess cell forbearances, which prepare constraining to neutralize the constraining of the incoming soak

E) indubitable gated deed proteins embedded in their plasma membranes notorious as osmotic constraining inferiors, tolerateing surplus soak to concession the cell


53. Compared to a cell after a while few aquaporins in its membrane, a cell includeing wide aquaporins achieve ________.

A) possess a faster reprove of osmosis

B) possess a inferior soak strongial

C) possess a exalteder soak strongial

D) possess a faster reprove of erratic transport

E) be flaccid


54. Which cells in a stem construct a protective enclosure to the vascular order where all representatives must impel through the symplast?

A) pericycle

B) cortex

C) epidermis

D) endodermis

E) exodermis


55. You are conducting an test on place development. You transfer a place vigorous from the befoul that weighs 5 kilograms (kg). Then you dry the place balancenight and particularize the dry power to be 1 kg. Of this dry power, how considerable would you forecast to be made up of oxygen, carbon, and hydrogen?

A) 1 gram

B) 4 grams

C) 40 grams

D) 960 grams

E) 1 kg


56. Which of the subjoined statements environing certain nutrients are TRUE? Certain nutrients ________.

I.    are certain for place development and plurality

II.   are required for a biased composition or metabolic operation

III.cannot be synthesized by a place

IV.are productd by symbiotic bacteria

A) I and IV

B) II, III, and IV

C) I, II, and III

D) I, II, III, and IV


57. Which criteria tolereprove biologists to portio chemicals into macronutrients and micronutrients?

A) molecular power of the atom or compound

B) the quantities of each required by places

C) how they are used in metabolism

D) whether or not they are certain for place development


58. A inanimate shortcoming is mitigated to favor older concessions balance than younger concessions if the ________.

A) inanimate is a micronutrient

B) inanimate is very fickle after a whilein the place

C) inanimate is required for chlorophyll form

D) inanimate is a macronutrient

E) older concessions are in plain sunlight


59.Which of the subjoined atoms set-rightly pairs an certain atom in places after a while its operation?

A) nitrogen–component of nucleic acids, proteins, hormones, coenzymes

B) magnesium–component of nucleic acids, phospholipids, ATP

C) phosphorus–cocontent operationing in protein form

D) sulfur–component of DNA; activates some enzymes


60.Why is nitrogen fixation an certain order?

A) Fixed nitrogen is repeatedly the limiting content in place development.

B) Nitrogen fixation is very rich in messages of metabolic disposition.

C) Nitrogen-fixing faculty can be genetically engineered.

D) None of the above


61.Nitrogen fixation is a order that ________.

A) recycles nitrogen compounds from inanimate and sinkinging representatives

B) converts ammonia to ammonium

C) acquits nitreprove from the buffet substrate

D) converts nitrogen gas into ammonia

E) recycles nitrogen compounds from inanimate and sinkinging representatives and converts ammonia to ammonium


62.Which of the subjoined, if used as a fertilizer, would be most presently availefficient for place uptake?

A) NH3

B) N2

C) CN2H2

D) NO3-


63. In what way do nitrogen compounds disagree from other inanimates needed by places? Only nitrogen ________.

A) can be lost from the befoul

B) can be granted by symbiotic bacteria

C) is needed for protein form

D) is held by cation exalter faculty in the befoul

E) can be attentive by stem hairs


64. What is the set-right continuity of steps during defileion of places by nitrogen-fixing bacteria?

A) Rhizobia acquit Nod contents; stems acquit flavonoids; rhizobia prolifereprove internally of stem hair; defileion line grows into the stem cortex; nodule constructs.

B) Rhizobia acquit flavonoids; stems acquit Nod contents; rhizobia prolifereprove internally of stem hair; defileion line grows into the stem cortex; nodule constructs.

C) Roots acquit flavonoids; rhizobia acquit Nod contents; rhizobia prolifereprove internally of stem hair; nodule constructs; defileion line grows into the stem cortex.

D) Roots acquit flavonoids; rhizobia acquit Nod contents; rhizobia prolifereprove internally of stem hair; defileion line grows into the stem cortex; nodule constructs.

E) Nodule constructs; defileion line grows into the stem cortex; rhizobia prolifereprove internally of stem hair; rhizobia acquit flavonoids and Nod contents.


65. Carnivorous places possess evolved mechanisms that pitfall and order ssinconsiderable fleshlys. The products of this orderion are used to addition the place's afford of ________.

A) soak

B) carbohydrates

C) lipids and steroids

D) nitrogen, nutrient, and other inanimates


66. Which of the subjoined statements environing nitrogen fixation in stem nodules is set-right?

A) The place contributes the nitrogenase enzyme.

B) The order is proportionately inrich in messages of ATP costs.

C) Leghemoglobin aids obscuretain a low oxygen eagerness after a whilein the nodule.

D) The order tends to deplete nitrogen compounds in the befoul.

E) The bacteria of the nodule are autotrophic.


67. Most of the dry concretion of a place is acquired from ________.

A) NO3- and CO2

B) K+ and CO2

C) PO4 and K+

D) H2O and K+

E) H2O and CO2