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From Flashcardlet > Biology Lab > Flashcards

Biology Lab Flashcards

0
Q

Hypothesis

A

Proposed solution based on limited evidence

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1
Q

Science

A

Study of the behavior of the physical and natural world through observation and experiment

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2
Q

Pheromones

A

Chemical substance released by an animal that affects behavior of other animals of its kind

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3
Q

Aerobic respiration

A

Takes in oxygen, releases carbon dioxide

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4
Q

Control variable

A

Held constant and used as a base for comparison

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5
Q

Independent variable

A

Variable being manipulated

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6
Q

Dependent variable

A

Responding variable, it depends on the independent variable

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7
Q

Operculum

A

Protective covering over a fish’s gills

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8
Q

Compound light microscope

A

2 sets of lenses and uses any kind of light

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9
Q

Stereomicroscope

A

Has 2 oculars, greater field of view, and is capable of 4x-50x magnification

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10
Q

Electron microscope

A

Uses beams of electrons to magnify specimens

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11
Q

How to find magnification of a compound microscope

A

Multiply the power of the ocular by the power of the objective
Ex) ocular-10x Low power objective-10x 10*10=100 Magnification-100x

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12
Q

Anton van Leeuwenhoek

A

Father of the microscope

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13
Q

Prokaryotic cell

A
  • bacteria

- lack membrane bound organelles and are smaller than eukaryotic cells

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14
Q

Eukaryotic cells

A
  • fungi, plants, and animals

- contain membrane bound organelles and are larger than prokaryotic cells

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15
Q

Unicellular

A

Made of one cell

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16
Q

Multicellular

A

Made of many cells

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17
Q

Colonial

A

Loosely connected groups of cells

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18
Q

Facilitated diffusion

A

Carrier proteins along the membrane carry molecules across the membrane

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19
Q

Active transport

A

Movement of substances across the concentration gradient that requires energy

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20
Q

Selectively permeable

A

Lets certain substances through and keeps some out

21
Q

Photosynthesis

A

Plants harness sunlight and produce oxygen

22
Q

Accessory pigment

A

Pigments important in plants but not involved in photosynthesis
Ex) carotene, xanthophyll, chlorophyll b

23
Q

Anaerobic cellular respiration

A

Takes place in the absence of oxygen

24
Q

Aerobic cellular respiration

A

Takes place in the presence of oxygen, most organisms have this

25
Q

Adenosine Triphosphate (ATP)

A

Energy currency of living systems

26
Q

Cell division

A

Mechanism by which two new cells form from one original parent cell

27
Q

Mitosis

A

Cell division that is divided into two stages: interphase, when the cell is not dividing, and mitosis, when the cell is dividing

28
Q

Meiosis

A

Reduction division that results in gametes, has two nuclear divisions called meiosis 1 and 2

29
Q

Gamete

A

Sex cells

30
Q

Fertilization

A

When the sperm comes into contact with the egg and matures into a zygote

31
Q

Allele

A

Possible form that a gene can take

32
Q

Homozygous

A

Individual who possesses two identical alleles

33
Q

Heterozygous

A

Individual who possesses two different alleles

34
Q

Dominant allele

A

Allele that masks the expression of the other allele

35
Q

Recessive allele

A

Allele that is masked

36
Q

Adaptive radiation

A

A species or group of related species evolved rapidly into many different species

37
Q

Vestigial structure

A

Structure you don’t need to live

38
Q

Analogous structure

A

Structure that two organisms share that is similar in structure but different in function

39
Q

Protein clock theory

A

As DNA mutates, protein differences build up

40
Q

Relative dating

A

Dating fossils by associating them with known time periods

41
Q

Food web

A

Complex diagram that shows the many tropic level interactions in a community

42
Q

Succession

A

A community undergoes a series of predictable and recognizable changes

43
Q

Autotrophs

A

Producer, makes their own food

44
Q

Heterotrophs

A

Consumer, get energy from eating other things

45
Q

Herbivores

A

Eat plant material

46
Q

Omnivores

A

Eat both plant material and meat

47
Q

Carnivores

A

Eat meat

48
Q

Detritivores

A

Eat decomposing organic matter

49
Q

Primary consumer

A

Eat plants

50
Q

Secondary consumers

A

Eat primary consumers

From Flashcardlet (18 decks)

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