Lab Practical 2160

Question 1

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

Answer 1

• TA
• Lab Coordinator
• Instructor of Record

Question 2

You need to take each week’s quiz…

Answer 2

Before coming to class

Question 3

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

Answer 3

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

Question 4

What is your room number and your TAs name?

Answer 4

Ankit 1260

Question 5

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

Answer 5

2

Question 6

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

Answer 6

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

Question 7

A controlled experiment…

Answer 7

is usually in the lab with variables

Question 8

A standardized variable is…

Answer 8

variable held constant during an experiment

Question 9

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

Answer 9

p2+2pq+q2

Question 10

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

Answer 10

1.0

Question 11

Define population.

Answer 11

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

Question 12

Gram staining is used to identify

Answer 12

bacteria

Question 13

What domain will we NOT be looking at today?

Answer 13

archaea

Question 14

Gram staining turns a bacteria either pink or

Answer 14

purple

Question 15

The 2 prokaryotic domains are Bacteria and

Answer 15

Archaea

Question 16

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?

Answer 16

A webpage with no date when it was published

Question 17

A dependent variable is…

Answer 17

factor showing response

Question 18

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

Answer 18

True

Question 19

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

Answer 19

humans

Question 20

What domain do viruses belong to?

Answer 20

None of the above

Question 21

What are the correct names for the 3 domains?

Answer 21

Bacteria, Archaea, Eukarya

Question 22

What is conjugation in Paramecium?

Answer 22

exchange of genetic material- NOT sex or reproduction

Question 23

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

Answer 23

Wood

Question 24

Alternation of generations means alternating…

Answer 24

diploid/ haploid

Question 25

What is tidal volume in terms of lung capacity?

Answer 25

normal breathing at rest

Question 26

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

Answer 26

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

Question 27

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

Answer 27

Yes

Question 28

What will you dissect in lab this week?

Answer 28

squid

Question 29

The style is found in…

Answer 29

flowers

Question 30

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?

Answer 30

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

Question 31

Which below is NOT true of monocots?

Answer 31

Flower parts in 4 or 5 taproot

Question 32

Roundworms belong to what phylum?

Answer 32

Nematoda

Question 33

What is parthenogenesis?

Answer 33

Diploid eggs develop without fertilization

Question 34

Phylum Brachipoda resembles what other Phylum?

Answer 34

Mollusca

Question 35

Crustacea have biramous appendages. What does this mean?

Answer 35

2-branched

Question 36

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

Answer 36

one

Question 37

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

Answer 37

humans

Question 38

Photoreceptors respond to...

Answer 38

light

Question 39

Lampreys belong to Class Agnatha because they lack jaws.

Answer 39

True

Question 40

Which animal is NOT in Class Mammalia?

Answer 40

Lamprey

Question 41

The first land vertebrates belong to which Class?

Answer 41

Amphibia

Question 42

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

Answer 42

coelom

Question 43

What are vibrissae?

Answer 43

whiskers/long sensory hairs

Question 44

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

Answer 44

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

Question 45

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

Answer 45

red, green, and blue

Question 46

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?

Answer 46

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

Question 47

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

Answer 47

cheek cells

Question 48

What terms are you responsible for on the skeletons?

Answer 48

every term on every diagram given

Question 49

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

Answer 49

Diaphragm

Question 50

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

Answer 50

Testis (bottom circle)

Question 51

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

Answer 51

Penis (in the middle, straight)

Question 52

Cheek cells belong to which basic tissue type?

Answer 52

epithelial

Question 53

Which bone is part of the axial skeleton?

Answer 53

ribs

Question 54

Which bone is part of the axial skeleton?

Answer 54

cranium

Question 55

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

Answer 55

Actual breaking of bonds to turn polymers into monomers

Question 56

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

Answer 56

Denature

Question 57

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

Answer 57

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

Question 58

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

Answer 58

No digestion, no starch - negative test results

Question 59

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

Answer 59

No. No substrate (no fat)

Question 60

What is the definition of population?

Answer 60

A group of interbreeding individuals of the same species

Question 61

Why are cohort studies not used in humans?

Answer 61

Humans have a long life span