Bio lab exam 2 - study guide Flashcards

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1
Q

Protist

A

Euglena
Volvox
Amoeba
Paramecium

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2
Q

define autotrophic

A

an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

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3
Q

define heterotrophic

A

an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter.

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4
Q

Euglena feeding
Protist

A

autotrophic & heterotrophic

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5
Q

Euglena reproduction
Protist

A

asexually, binary fission, some through conjugation (but this is sexual and unfavorable)

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6
Q

Volvox feeding
Protist

A

autotrophic

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7
Q

volvox reproduction
Protist

A

asexually - produces daughter colonies
sexually - forms zygotes that develop into new colonies

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8
Q

amoeba - feeding
Protist

A

heterotrophic

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9
Q

amoeba - reproduction
Protist

A

asexually, binary fission (some can through conjugation, sexually)

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10
Q

paramecium - feeding
Protist

A

heterotrophic

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11
Q

paramecium - reproduction
Protist

A

asexually, binary fission (sexually through conjugation - two individuals swap genetic material)

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12
Q

locomotion of euglena
Protist

A

flagella

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13
Q

locomotion of volvox
Protist

A

flagella

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14
Q

locomotion of amoeba
Protist

A

pseudopodia

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15
Q

locomotion of paramecium
Protist

A

cilia

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16
Q

what is a daughter colony
Protist

A

a newly formed colony in volvox resulting from the reproductive cells known as gonidia

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17
Q

what is a tsetse fly
Protist

A

scientifically known as Glossina, it’s a large, biting fly found in Africa. Most notably known for carrying and transmitting African Sleeping Sickness

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18
Q

What’s African Sleeping Disease
Protist

A

Also known as African Trypanosomiasis, a parasitic disease transmitted to humans through the bite of infected tsetse flys. 2 main forms (1 showing symptoms faster (weeks) is deadlier - rhodesiense, 2 shows symptoms slower (months) is easier to treat - gambiense)

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19
Q

what is osmoregulation and what organelle is responsible
Protist

A

the process by which organisms regulate the concentration of solutes and water in their bodies or cells to maintain internal osmotic balance, CONTRACTILE VACUOLE (CV)

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20
Q

what is a stigma
Protist

A

also known as an eyespot, they help in photoreception (detects light) and cause phototaxis (towards or away from a stimulus of light)

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21
Q

difference between prokaryotic and eukaryotic
Protist

A

eukaroyotic contain nucleus and are generally more complex (tissue forming) than prokaryotic cells that don’t contain a nucleus

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22
Q

what is a symbiotic relationship
Protist

A

a close and long term interaction between two different species, where at least one of them benefits from the relationship
- mutualism
- commensalism
- paratism

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23
Q

what are the 3 kinds of symbiotic relationships and what do they mean
Protist

A

MUTUALISM - both species benefit
COMMENSALISM - one species benefits, while the other is neither harmed nor helped
PARATISM - one species benefits at the expense of the other

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24
Q

what is phagocytoces
Protist

A

A form of cellular eating of things such as bacteria, dead cells, cellular debris, etc (vital for the immune system)

25
Q

define species diversity

A

the variety and abundance of different species at a given geographical location

26
Q

what is conservation biology

A

the study of conservation of nature and Earth’s biodiversity with the aim of protecting species, their habitats, and ecosystems

27
Q

what biodiversity

A

the variety of life in the world, or in a particular habitat or ecosystem

28
Q

what’s the species richness

A

the number of different species of any given area

29
Q

what species eveneness

A

describes the commonness or rarity of a species; requires knowing the abundance of each species compared to other species in the communitiy

30
Q

what are the differing classes of Phylum Porifera (sponges)
Phylum Porifera

A
  • Calcarea
  • Hexactinellida
  • Demospongiae
31
Q

what’s Euplectella
Phylum Porifera

A

also known as the venus flower basket, it’s a well known genus of hexactinellid sponges

32
Q

Define sessile
Phylum Porifera

A

a term in biology to describe an organism that is permanently attached to a substrate and doesn’t have the ability to move from place to place

33
Q

what is coelom
Phylum Porifera

A

a fluid filled body cavity of an animal that contains the internal organs, provides support, protection, & organ function

34
Q

what species belongs to Phylum Porifera (sponge) class calcerea
Phylum Porifera

A

Sycon
Leucosolenia

35
Q

what species belongs to Phylum Porifera (sponge) class hexactinellida
Phylum Porifera

A

Euplectella
Hyalonema

36
Q

what species belongs to Phylum Porifera (sponge) class demospongiae
Phylum Porifera

A

Spongilla
Cliona

37
Q

what are Phylum Porifera (sponge) cell types
Phylum Porifera

A

choanocytes
amoebocytes
pinacocytes
porocytes

38
Q

function of choanocytes
Phylum Porifera

A

a type of phylum Porifera cell,
line flagellated canals, filter food, reproduction

39
Q

function of amoebocytes
Phylum Porifera

A

a type of phylum Porifera cell,
become cell types, secrete spicules and spongin

40
Q

function of pinacocytes
Phylum Porifera

A

a type of phylum Porifera cell,
flat epithelial cells, line the outside and incurrent canals

41
Q

function of porocytes
Phylum Porifera

A

a type of phylum Porifera cell,
water flow

42
Q

what are the 3 kinds of symmetry
Phylum Porifera

A

ASYMMETRICAL - irregular or lack of symmetry, lack of definite shape
RADIAL - arranged around a central axis, symmetry follows around it
BILATERAL - divides into two mirror image halves

43
Q

what is metagenesis
Phylum Cnidaria

A

the alteration of generations exhibiting asexual (polyps - medusa) and sexual (medusa - polyps)

44
Q

what is pneumatophore
Phylum Cnidaria

A

the gas filled float of some colonial coelenterates, such as the Portuguese Man of War

coelenterates - an aquatic invertebrate animal of a phylum that includes jellyfishes, corals, and sea anemones

45
Q

what is a cnidocyte and a nematocyte
Phylum Cnidaria

A

cnidocyte = a stinging cell
nematocyte = stinging capsule

46
Q

define diploblastic
Phylum Cnidaria

A

having a body derived from only two embryonic cell layers (ectoderm & endoderm, but no medoderm)

47
Q

define mesoglea
Phylum Cnidaria

A

a gelatinous substance between the endoderm and the ectoderm of sponges of cnidarians

48
Q

the difference between a polyp & medusa
Phylum Cnidaria

A

polyps are formed asexually
medusa are formed sexually

49
Q

what’s the difference between a fedding and a reproductive polyp on the obelia
Phylum Cnidaria

A

FEEDING = specialized longer tentacles surrounding the mouth for capturing and digesting prey

REPRODUCTIVE = specialized in releasing reproductive structures for sexual reproduction, generally has shorter tentacles and is overall stubbier looking

50
Q

define polymorphic
Phylum Cnidaria

A

occurring in several different forms, in particular with reference to species or genetic variation

51
Q

define diploblastic
Phylum Cnidaria

A

having a body derived from only 2 embryonic cell layers (the ectoderm and endoderm, no mesoderm)

52
Q

what are the 4 classes of cnidarians
Phylum Cnidaria

A

Athozoa
Cubozoa
Hydrozoa
Scyphozoa

53
Q

what is cephalization
Phylum Platyhelminthes

A

the concentration of sense organs, nervous system, brain, at the anterior end of the body, forming a head and brain, both during evolution & embryonic development

54
Q

define triploblastic
Phylum Platyhelminthes

A

having a body derived from 3 embryonic cell layers (endoderm, ectoderm, and mesoderm)

55
Q

scolex function
Phylum Platyhelminthes

A

contains structures, such as grooves, suckers, or hooks that enable the worm to attach to the gut wall

56
Q

define coelom
Phylum Platyhelminthes

A

fluid filled body cavity providing space for organs to be suspended and more independently

57
Q

define acoelomate
Phylum Platyhelminthes

A

animal that lacks coelom, it’s body cavity is filled with solid tissue

58
Q

define eucoelomate
Phylum Platyhelminthes

A

animal with true coelom that forms entirely within the mesoderm during embryonic development

59
Q

define pseudocoelomate
Phylum Platyhelminthes

A

animal containing a body cavity that’s partially lined with mesodermal tissue and partially derived from the blastocoel (primary body cavity of embryo)