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Bio Lab 2160 > Lab Practical 2160 > Flashcards

Lab Practical 2160 Flashcards

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Biology 101 flashcards
1
Q

If you have questions/concerns about biology lab you can speak with…

A
  • TA
  • Lab Coordinator
  • Instructor of Record
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2
Q

You need to take each week’s quiz…

A

Before coming to class

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3
Q

How do you know what you are doing in lab each week?

A

Check the syllabus on page 9/10 in your lab manual. There is also a syllabus on Blackboard

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4
Q

What is your room number and your TAs name?

A

Ankit 1260

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5
Q

You are allowed ___ unexcused absences before being dropped from the class.

A

2

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6
Q

The scientific method is a series of steps. Which below has the steps in the correct order?

A

make observations, ask questions, form hypothesis and make predictions, test hypothesis

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7
Q

A controlled experiment…

A

is usually in the lab with variables

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8
Q

A standardized variable is…

A

variable held constant during an experiment

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9
Q

Which of the formulas below is the Hardy-Weinberg equation?

A

p2+2pq+q2

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10
Q

When calculating genotypic frequencies in a population, the frequencies of the two alleles (p+q), and the frequencies of the various genotypes must equal…

A

1.0

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11
Q

Define population.

A

all the members of the same species that live in one locale

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12
Q

Gram staining is used to identify

A

bacteria

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13
Q

What domain will we NOT be looking at today?

A

archaea

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14
Q

Gram staining turns a bacteria either pink or

A

purple

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15
Q

The 2 prokaryotic domains are Bacteria and

A

Archaea

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16
Q

You are looking up information online for your lab report. You find several webpages and want to pick the most reliable information. Which below is the LEAST reliable web page?

A

A webpage with no date when it was published

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17
Q

A dependent variable is…

A

factor showing response

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18
Q

Spirometry is used to diagnose and monitor lung problems, for example, chronic obstructive pulmonary disease (COPD) and asthma.

A

True

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19
Q

In the Vital Capacity Lab, what is our test organism?

A

humans

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20
Q

What domain do viruses belong to?

A

None of the above

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21
Q

What are the correct names for the 3 domains?

A

Bacteria, Archaea, Eukarya

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22
Q

What is conjugation in Paramecium?

A

exchange of genetic material- NOT sex or reproduction

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23
Q

Which below is not one of the 3 principal organs of plants? Roots
B.
Leaves
C.
Stems
D.
Wood

A

Wood

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24
Q

Alternation of generations means alternating…

A

diploid/ haploid

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25
Q

What is tidal volume in terms of lung capacity?

A

normal breathing at rest

26
Q

What is surfactant? What is its role in the body?

A

a mixture of fat and proteins made in the lungs.
different muscle amount
different physical activity level
lung disease
or anything else that makes sense

27
Q

Some organisms do not have questions associated with them. Could these organisms end up on the final lab practical as an identification question?

A

Yes

28
Q

What will you dissect in lab this week?

A

squid

29
Q

The style is found in…

A

flowers

30
Q

In pine trees, the gametophyte is dependent on the sporophyte. What does that mean? Would you ever find the pine gametophyte living by itself? Is this true of all plants?

A

gametophyte attached to and nutritionally dependent on sporophyte, never find gametophyte independent, not true in other plants

31
Q

Which below is NOT true of monocots?

A

Flower parts in 4 or 5
taproot

32
Q

Roundworms belong to what phylum?

A

Nematoda

33
Q

What is parthenogenesis?

A

Diploid eggs develop without fertilization

34
Q

Phylum Brachipoda resembles what other Phylum?

A

Mollusca

35
Q

Crustacea have biramous appendages. What does this mean?

A

2-branched

36
Q

The name centipede literally means hundreds of feet. In reality, how many PAIRS of feet do they have per body segment?

A

one

37
Q

In the nervous system lab, what organism will/did we use to investigate sensory systems?

A

humans

38
Q

Photoreceptors respond to…

A

light

39
Q

Lampreys belong to Class Agnatha because they lack jaws.

A

True

40
Q

Which animal is NOT in Class Mammalia?

A

Lamprey

41
Q

The first land vertebrates belong to which Class?

A

Amphibia

42
Q

What is the cavity that contains the bulk of organs called? (indicated by bracket C on the diagram)

A

coelom

43
Q

What are vibrissae?

A

whiskers/long sensory hairs

44
Q

Thermoreceptors fire in response to a temperature difference. How was this demonstrated by the bowls of hot, room temperature, and cold water?

A

The hand in hot water put in room temp water felt cold–temperature difference from hot to cooler made cold receptors fire

45
Q

What are the 3 colors of cones in the human eye?

A

red, green, and blue

46
Q

Touch. Von Frey hairs were used to test different areas of the body. Which areas did or were expected to have more sensitivity than others? Why?

A

Different areas are more sensitive because of large concentration of touch receptors. Expected sensitive areas - lips, fingertips, underside of forearms

47
Q

Which term below is NOT a name for the categories of the 4 basic types of tissue?
connective tissue, epithelial tissue, muscle tissue, and nervous tissue, cheek cells

A

cheek cells

48
Q

What terms are you responsible for on the skeletons?

A

every term on every diagram given

49
Q

What structure divides the thoracic and abdominal cavities? It is indicated by the red arrow.

A

Diaphragm

50
Q

On the diagram of the male rat, what does the red arrow point to?

A

Testis (bottom circle)

51
Q

On the diagram of the male rat, what does the red arrow point to?

A

Penis (in the middle, straight)

52
Q

Cheek cells belong to which basic tissue type?

A

epithelial

53
Q

Which bone is part of the axial skeleton?

A

ribs

54
Q

Which bone is part of the axial skeleton?

A

cranium

55
Q

What is chemical digestion (as contrasted with physical digestion)?

A

Actual breaking of bonds to turn polymers into monomers

56
Q

Enzymes work best in a particular pH range. Outside of this range they lose their shape or ________.

A

Denature

57
Q

A tube has heavy cream, bromothymol blue and pancreatin added. Will digestion occur? Why or why not?

A

Yes. Correct substrate and enzyme but without bile salts will proceed slower than with them.

58
Q

A tube has water and pancreatin. After incubation, what will the Benedict’s results be? Why?

A

No digestion, no starch - negative test results

59
Q

A tube has bromothymol blue, bile salts and pancreatin added. Will digestion occur? Why or why not?

A

No. No substrate (no fat)

60
Q

What is the definition of population?

A

A group of interbreeding individuals of the same species

61
Q

Why are cohort studies not used in humans?

A

Humans have a long life span

Bio Lab 2160 (1 decks)

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