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incorrect exam questions as Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

amylase cofactor

A
  • chloride ions
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1
Q

amylase cofactor

A
  • chloride ions
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2
Q

carbolic anhydrase co factor

A
  • zinc which is a prosthetic group
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3
Q

light microscope used to view

A
  • whole cells
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4
Q

TEM used to see

A
  • organelles
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5
Q

laser confocal microscope used to view

A
  • objects and certain depth
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6
Q

SEM used to view

A
  • surfaces
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7
Q

what cell division stage is known as the reduction division

A
  • first stage in meosis
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8
Q

oxygen consumption calculations

A
  • decrease in volume in a minute depending on unit
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9
Q

why do some transport do not require ATP

A
  • particles have their own kinetic energy
    -movement down concentration gradient
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10
Q

how hydrophiles are supported

A
  • air spaces give buoyancy so the plant/leaf can float
  • ## supporting by surrounding water
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11
Q

resolution

A

the ability to distinguish between two separate objects

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12
Q

autoimmune disease

A
  • abnormal immune response against tissues normally in the body
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13
Q

advantage of not habituating endangered species

A
  • animals exhibit natural behaviors
  • less likely to catch disease from humans
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14
Q

disadvantages of not habituating endangered species

A
  • could be wiped out by diseases
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15
Q

rate of transpiration =

A

volume/time

16
Q

another way other than transpiration how water is lost from plants

A
  • evaporation from upper surface of leaves
17
Q

why would onion root tips be used to view cells undergoing mitosis

A
  • site of cell division
    -meristematic tissue
18
Q

fluid Mosaic description

A

-phospholipid bilyer. hydrophobic tails inwards and hydrophilic heads outwards.
phospholipids free to move in membrane
-proteins are randomly arranged between phospholipids

19
Q

why can steroid hormones move across the membrane

A
  • they are soluble
    -uncharged so dissolve in phospholipid bilayaer
20
Q

defining feature of eukarya and the other domains

A
  • nucleus
    -80s ribosomes
    -membrane bound organelles
21
Q

ways scientists validate studies

A

-repeat the study
-peer review
-look for supporting evidence from other studies

22
Q

rate of reaction =

A

1/time

23
Q

whats considered a high standard deviation number

A
  • greater than 1
24
Q

what do overlapping error bars mean

A
  • no significant difference/uncertain
25
Q

what do non overlapping error bars means

A
  • there is significance
26
Q

difference between EM and laser confocal microscope

A
  • has a lower resolution than EM
    -Can have fluorescent tags
27
Q

explain independent assortment

A
  • homologous pair are randomly arranged on the equator of the spindle fibre.
    -maternal or paternal chromosomes can end up in either daughter cell
    -each homologous pair is genetically different
28
Q

ethical issues of using embryonic cells as a source of stem cells

A
  • embryos are destroyed
    -debate where life begins
    -cannot give consent
29
Q

xylem and phloem similaries

A
  • both made up of cells joined end to end
30
Q

differences between xylem and phloem

A

-lignified vs not lignified
no cytoplasm and organelles vs cytoplasm and a few organelles

31
Q

describe how to dissect a bony fish and insect to view gas exchange systems

A
  • lift and remove operculum of fish
    -cut open exoskeleton of insect
    -observe gills/ trachea under microscope
32
Q

why is increasing surface area a advantage for gas exchange

A

more space for a larger volume of gas exchange to occur

33
Q

role of a large blood supply in the alveoli

A
  • for ventilation. CO2 constantly replenished
    -maintain a steep concentration gradient
34
Q

elastic tissue

A
  • strech and reoil- increases surface area
35
Q

benefit of genetic biodiversity

A
  • provides variation for natural selection
36
Q

how to use a calibration curve

A
  • find the absorbance using colorimeter
  • find concentration that corresponds to the absorbance
  • description of moving along the x and y axis

Biology (26 decks)

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