Eukaryotic Micro Exam 1 Flashcards

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1
Q

General

what is the theory that eukaryotes appeared 2 billion years ago?

A

symbiosis

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2
Q

organelles

what are the organelles in a eukaryotic cell?

EPR, GA, M, C

A
  • endoplasmic rectilium (Smooth and Rough)
  • golgi apparatus
  • mitochondria
  • chloroplasts
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3
Q

organelles

what are the locomotor organelles in a eukaryotic cell?

F ans C

A
  • flagella
  • Cilia
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4
Q

organelles

what composes the cytoskeleton in the eukaryotic cell?

form a network throughout the cytoplasm

A
  • microtubules
  • microfilaments
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5
Q

organelles

what are lysosomes?

lys-

A

vesicles containing enzymes that originate from the Golgi apparatus, involved in intracellular digestion of food particles

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6
Q

organelles

what are vacuoles?

vacuum

A

membrane-bound sacs containing particles to be digested, excreted or stored

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7
Q

organelles

what are phagosomes

A

membrane bound vacuoles containing ingested molecules becomes merged with the lysosome

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8
Q

organelles

what is chloroplast?

A

it converts energy of the sun into chemical energy through photosynthesis can be found in plants and algae

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9
Q

organelles

endoplasmic reticulum

rough? smooth?

A

rough- continuous net work through cytoplasm from the nuclear membrane to the Golgi; has ribosomes
smooth- Close tubluar Netwerk without ribosomes functions in nutrient processing, synthesis in storage of lipids

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10
Q

organelles

Golgi apparatus

mailman

A

modifies stores and packs proteins. consist of a stack of flattened sacs called cisternae

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11
Q

organelles

mitochondria

powerhouse

A

produces and stores ATP, Crystal membrane holds the enzymes and electron carriers of aerobic respiration

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12
Q

organelles

ribosome

rRNA

A

functions in proteins synthesis

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13
Q

cell wall

describe a cell wall in a eukaryotic cell?

only in some eukaryotic microogranisms
fungi? Algae?

A
  • provides structural support and shape
  • fungi have thick inner layer of polysaccharide fibers composed of chitin or celluloseand a thin layer of glycan
  • Algae theories in chemical compositio, substance is commonly found in cellulose pectin, silicon dioxide, calcium carbonate
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14
Q

fungi

what are the different morphology of fungi?

M, Y

A
  • mold
  • yeast
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15
Q

Fungi

mold

A
  • multicellular
  • Long filamentous threads of fungi ate called hyphae produced by releasing spores
  • woven or interwining masses of hyphae are called mycelium
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16
Q

fungi

yeasts

A
  • unicellular
  • asexual reproduction by producing buds
  • some have chains of buds attached in a row called pseudohyphae

some exist in both forms depending upon temperature

17
Q

fungi

what is fungi’s nutritional diet?

autotroph or heteotrophs

A
  • all fungi are heterotrophs ( do not produce their own food)
  • majority are harmless
18
Q

fungi

what is mycoses?

A

fungal infection

19
Q

asexual spore formation

what are sporangiospores?

A

formed by successive cleavages within a sac like head called sporangium

20
Q

asexual spore formation

what is conidiospores (conidia)?

A

free spores not enclosed by spore bearing sac

21
Q

sexual formation

how are spores produced sexually?

A

following fusion of two different strains in formation of sexual structure

22
Q

protozoa

what is the morphology of protozoa?

M, A, C, A

A
  • mastigophorans ( F)
  • amoebas (PP)
  • ciliophorans (C)
  • apicomplexans (NM)

moblity

23
Q

fungal classification

what are the diffrent phyla based upon the type of sexual reproduction?

Z, A, B, C

A
  1. phylum zygomycota
  2. ascomycota
  3. basidiomycota
  4. chytridomycota
24
Q

protozoa

what are the characteristics of ciliophora?

living? mobility?

A

-motile by cilia
- some have cilia for feeding an attachment most develop cyst

25
Q

protista

what does the kingdom of Protista consist of?

A
  • algae
  • protozoa
26
Q

Protista (algae)

what is algae?

A

Eukaryotic organisms usually unicelluar and colonial that photosynthesizes with chlorophylla

27
Q

protists (algae)

what are the characteristics of algae?

free living? unicellualr or multi? pigment?

A
  • photosynthetic organisms
  • microscopic forms are unicellular, colonial and filamentous
  • most of free living
  • microscopic forms are colonial and multicellular
  • contains chloroplast with chlorophyll and other pigments
  • has a cell wall but may not have a flagella
28
Q

protozoa

What are the characteristics of protozoa?

cellular? harm level? autotrophic or heterotrophic

A
  • most are unicellular
  • most are harmless
  • some are animal parasites that can be spread by and insect vector
  • all are heterotrophic
29
Q

protozoa

what are the characteristics of mastigophora ?

living? mobility? nucleus?

A
  • flagella
  • single nucleus
  • free living
30
Q

protozoa

what are the characteristics of amoebas?

living? mobility?

A
  • pseudopods
  • asexual reproduction by fission
    -most amoebas are free living and not infectious
31
Q

protozoa

what are the characteristics of apicomplexa?

living? mobility?

A
32
Q

parasitic helminths

what are the characteristics of parasitic helminths?

cellular?

A
  • multicellular
  • parasitize host tissues
  • have mouth parts for attachment
33
Q

parasitic helminths

what are the major groups of parasitic helminths?

A
  • flatworms
  • roundworms
34
Q

parasitic helminths

what are the characteristics of flatworms?

shape? systems?

A
  • flat with no digestive track or blood pouchs simple excretory and nervous system
35
Q

parasitic helminths

what are the two subdivisions for flat worm?

C, T

A
  • cestodes (tapeworms)
  • trematodes (flukes)
36
Q

parasitic helminths

what are the characteristics of roundworms (nematods)

shape? systems?

A
  • round, has a complete digestive track and a protective surface cuticle
  • has spines and hooks on the mouth
  • exrectory snd nervous system are poorly developed
37
Q

parasitic helminths

what is the subdivision for roundworms?

PW

A

enterobius vermicularis (pin worm)

38
Q

parasitic helminths

how are parasitic helminths acquired?

A
  • through ingestion of larva or eggs and food from soil or water and some are cured by insect vectors