Biology Labs

Which of the following is an example of quantitive data? select all that apply.

- total biomass of the plant - height of the peanut plant - number of peanut harvested

You conduct an experiment to see how salt concentration affects catecholase enzyme activity. You conduct the experiment with 0%, 5%, 15%, and 30% salt, and measure the reaction rate at each concentration by recording the absorbance of light using a spectrophotometer. Refer to the data table below when answering the following questions.

0%

Given that 1 liter= 10000 milliliters, convert 24.3 milliliters (ml) to liters (L)

0.0243

which of the following values is the largest amount? 2 grams 2 miligrams 2 kilograms 2 micrograms

2 kilograms

1 kilogram= 1000 gram 1 gram= 1000 miligram 2 kilograms=______ miligrams

2,000,000 1000x1000=1,000,000 1,000,000x2= 2,000,000

A dog whistle emits a sound in the ultrasonic range, which people cannot hear but dogs can. What frequency range does a dog whistle likely have?

20,000-45,000 hz

What is the range of sound frequencies that humans can detect?

20-20,000HZ

Use the conversion factor provided to calculate the correct answer. 1 inch= 2.54 centimers 9 inches = ______ centimers

22.86 2.54x9

A lichen is composed of how many different organisms?

3

Given the following conversion factor, identify the correct answer for A and B below. 1 meter= 100 centimeters 1 meter= 1,000,000 micrometer 2 meters= __A__ centimeters 5000 micrometers=__B____ meters

A=200; B=.005

Porifera

Aquatic, sessile, body has pores and channels to filter feed, no tissue. No gut/ muscle/ nervous system sponges

If one strand of a DNA molecule has the sequence G-A-T-T-A-C-A, what is the sequence of the complementary strand?

C-T-A-A-T-G-T

The wells that contain the DNA samples are placed next to the negatively charged electrode in the electrophoresis box (chamber) because _______.

DNA is negatively charged

Chordata

Dorsal nerve cord, notochord, pharyngeal slits asymmetry Mammals, bird, fishes

Which of the following statements is Correct?

Enzymes are proteins Amino acids are the subunits (monomers) of enzymes

tropical forest

Hot and rainy all year long (humid). It contains the greatest biodiversity out of all the biomes. The dense canopy forms many layers and the plants compete for light.

Mollusca

Mantle, muscular foot, visceral mass, hard external shell in most members bilateral symmetry snails, octopus

temperature deciduous forest

This biome has four seasons. The temperature varies widely from season to season with cold winters and hot, wet summers. During the winter the plants go dormant and many of the animals hibernate or migrate.

independent variable should be plotted on the _______ axis and the depend variable should be plotted on the _____ axis.

X;Y

provide a biological reason for why yeast cannot use certain sugars for fermentation

Yeast lack the necessary enzymes for the sugar

The pH of coca Cola is about 2.5. How would you describe the solution?

acidic

Which of the following type of plants contain seeds? (Choose all that apply)

angiosperms gymnosperms

when baking bread, what product of fermentation causes the bread to rise?

carbon dioxide

Spherical bacteria are called

cocci

STR analysis is a DNA profiling technique that makes use of the fact that different people have

different numbers of repeats of short DNA sequences at certain sites in the genome.

Which of the following are senses that other animals have, but humans do NOT? (Choose all that apply)

echolocation electroreception magnetoreception

Which of the following structures are part of the plant shoot system? Choose all that apply.

flower leaf stem

Which of the following traits are unique to angiosperms and absent in the other plant groups? Choose all that apply.

fruit flower

Organism in a lichen that provides protection Organism in a lichen that provides nutrients through photosynthesis Branched growth form of lichen leafy growth form of lichen small and flat growth form of lichen

fungus algae fruticose foliose crustose

Gametophyte sporophyte Xylem phloem cone flower

haploid stage of diploid stage of vascular tissue that carries water and solute vasular tissue that carries sugars gymnosperm reproductive system angiosperm reproductive system

The breakdown of polymers occurs by a process called________ in which water added to break bonds between monomers.

hydrolysis

What is special about Vibrio fischeri bacteria?

it is bioluminescent

match each monomer with its polymer: nucleotide amino acid triglyceride monosaccharide

nucleic acid protein fat/lipids carbohydrate

You conduct an experiment to see how pH affects catecholase enzyme activity. You conduct the experiment at a pH of 3, 5, 7, 9, and 11, and measure the reaction rate at each pH by recording the absorbance of light using a spectrophotometer. Refer to the data table below when answering the following questions. At which pH is the enzyme most likely to be denatures? How do you know

ph 11 because absorbance is lowest

The following question is based on the anole lizard video "The Origin of Species: Lizards in an Evolutionary Tree." What does the evidence suggest regarding the evolution of body types of anole lizards on the different islands?

the same types of lizards evolved independently on each island

All of the following are important factors that determine the characteristics of biomes EXCEPT:

the types of predators in an area

Which of the following are required for evolution by natural selection to occur? (Choose all that apply)

there is variation int he trait int he population the trait can be passed down from parents to offspring the trait affects the ability of the individual to reproduce

Which of the following is a"fruit" according to the botanical definition? Choose all that apply.

tomato bell pepper cucumber

Match the correct values fo rCalories and % Calories for carbohydrate, protein, fat

total Calories from carbohydrate= 48 (12x4) Total calories from protein= 32 (8x4) total calories from fat= 81 (9x4) % carbohydrate= 30 (48/161 x 100) % protein= 20% (32/161 x100) % fat= 50% (81/161 x100)

Which of the following are examples of quantitative data? Select ALL that apply.

volume of oxygen gas temperature absorbance

You conduct an experiment to see how temperature affects catecholase enzyme activity. You conduct the experiment at 0oC, 20oC, 37oC, and 100oC, and measure the reaction rate at each concentration by recording the absorbance of light using a spectrophotometer. Refer to the data table below when answering the following questions. identify which variable you would plot on each axis when graphing the results of this experiment:

x-axis= temperature y-axis= absorbance

Do either of the restriction enzymes BamHI or EcoRI cut this DNA fragment? Note: only 1 strand of the DNA fragment is shown. cgaaggatccagaatftattcatggcaatgt

yes, BamHi only

You are attempting to see if a suspect is associated with a crime. The only evidence you have is a tiny drop of blood from the crime scene, which is not enough to run an analysis. How can you increase your crime scene DNA sample?

you can use PCR to increase the amount of DNA

The enzyme [ Select ] is produced by fruits and vegatables (such as potatoes) and coverts the substrate [ Select ] into the product [select]

1. cateccholase 2. catechol 3. quinone

For catecholase experiment, identify the following 1.substrate 2. product 3. enzyme 4. substrate color 5. product color

1. catechol 2. quinone 3. catecholase 4. colorless 5. brown

For the catalase experiment, identify the following: 1. substrate 2. product 3. enzyme

1. hydrogen peroxide 2.water and oxygen 3. catalse

match the following terms with their definition 1. substrates 2. active site 3. catalyst 4.proteases 5. ase

1. the reactants of enzymes catalyzed reactions 2. the specific location on an enzyme where a substrate binds 3. a substance that increases the rate of a reaction without being consumed 4. enzymes that break peptide bonds in protein 5. suffix that indicated a molecule is an enzyme

The enzyme [ Select ] is produced by many mammals (including humans) and coverts the substrate [ Select ] into the product [ Select ]

1.amylase 2. starch 3. maltose

The enzyme [select] is produced by many organisms and coverts the substrate [ Select ] into the products [ Select ]

1.catalase 2. hydrogen peroxide 3. oxygen and water

If you are viewing a specimen using the 10X objective lens, what is the total magnification?

100X

Use the conversion factor provided to calculate the correct answer. 1 meter= 1.094 yards 3.5 yards=______ meters

3.2 3.5/1.094

1 liter= 1000 milliliter 30 liter =____ milliliter

30,000 30x1,000

If you conduct an experiment in which you measure the affect of temperature on the activity of amylase that you extract from you own saliva, which temperature would you expect to have the highest level of amylase activity?

37 degrees C

A single carbon atom can have a maximum of how many bonds?

4

if you are viewing a specimen using 4X objective lens, what is the total magnification?

40X

Use the conversion factor provided to calculate the correct answer. F= (C x 1.8)+32 20C= ______F

68

Which of the following tests yields a blue color when the result is negative (i.e. when the macromolecule it tests for is absent)? Select ALL that apply.

Benedict's Biuret

which of the following macromolecules will you be testing for in this lab? (lab 3) (choose all that apply)

Carbohydrates fats proteins

Chaparral

Characterized by hot, dry summers and mild, rainy winters. This ecosystem as a whole is adapted to recover from periodic wildfires. Animals are usually nocturnal.

desert

Characterized by very little rainfall and large temperature fluctuations between day and night. Most of the animals are nocturnal and live underground.

You have been asked to conduct an experiment with different flavors of ice cream. Which of the following is a scientifically testable hypothesis about ice cream?

Chocolate ice cream melts slower than vanilla ice cream Ben and Jerry's vanilla ice cream has more sugar than Dreyer's ice cream

what do you need to do before you complete the Analysis of Diet activity on pg. 46?

Complete the food log from the pre-lab questions section on pg.42

Temperature grassland

Contains a rich mix of grasses and herbaceous plants and contain some of the world's most fertile soils. The vegetation is well-adapted to drought, fire, and cold.

Which of the following are characteristics of ALL animals? Select all that apply.

Eukaryotic multicellular heterotrophic

Consider the following question: Does eating a sweet snack cause more weight gain than eating an oily snack? identify the following elements of this snack experiment.

Independent variable: type of snack (candy vs chip) dependent variable: weight gain control treatment: a group of participants who do not eat experimental treatment: a group of participants who eat oily candy standardized variable: amount of exercise

You conduct an experiment to see how salt concentration affects catecholase enzyme activity. You conduct the experiment with 0%, 5%, 15%, and 30% salt, and measure the reaction rate at each concentration by recording the absorbance of light using a spectrophotometer. Refer to the data table below when answering the following questions. identify the following variables.

Independent variable= salt concentration dependent variable= absorbance

identity the correct definition of a positive and negative control.

Negative control: a group that ensures that there is no effect when there shouldn't be an effect. Positive control: a group that ensures that theres an effect when there should be an effect

Select all of the correct statements. (Choose all that apply)

Nucleotides of a single DNA strand are held together by covalent bonds. Complementary strands in a DNA molecule are held together by hydrogen bonds.

Match the test with the positive results

Paper Test= translucent Biuret Test= color turns violet Iodine Test= Color turns black Benedict's Test= color turns yellow Sudan test= food stains red-orange

Match the test with the macromolecules it tests for.

Paper=Fat(lipid) Biuret Test= Protein Iodine Test= Starch Benedict's Test= Simple sugars

Enchinodermata

Pentaradial symmetry, water vascular system radial symmetry sea stars

Platyhelminthes

Platyhelminthes Flat, worm-like body, digestive tract with single opening.bilateral symmetry Flat-worm

Annelida

Segmented, worm-like body, complete digestive system bilateral symmetry earthworms

Which of the following tests is used to detect fats (lipids)? Select ALL that apply.

Sudan Paper

savanna

Warm year-round with dry and wet seasons. Periodic fires are common during the dry season and the vegetation includes drought-tolerant and fire-tolerant plants.

Coniferous Forest (Taiga)

Winters are long and cold and the summer growing season is short. Vegetation includes evergreen trees with needle-like leaves.

Tundra

Winters are long, dark, and cold, with average temperatures below 0°C for six to 10 months of the year. The temperatures are so cold that there is a layer of permanently frozen ground below the surface, called permafrost.

Porifera: body symmetry = Asymmetrical , tissues are absent

asymmetrical absent

rod-shaped bacteria are called______.

bacilli

Microorganisms can be found in which of the following groups?

bacteria fungi protists animals

Which of the following are NOT animals? Select all that apply.

bacteria yeast

You are interested in testing the following hypothesis: "students who drink a cup of coffee before an exam will score higher on the exam than students who don't drink a cup of coffee" what kind of graph (line or bar graph) would be more appropriate in graphing these data?

bar graph

Which of the following animals can detect ultrasound? (Choose all that apply)

bat cat mouse dolphin dog

Which of the following animals routinely rely on echolocation to navigate and find food? Select ALL that apply.

bats dolphins

Annelida: body symmetry = Bilateral , tissues are present

bilateral present

Mollusca: body symmetry = Bilateral , tissues are present

bilateral present

Platyhelminthes: body symmetry = Bilateral , tissues are present

bilateral present

A package of peanut butter crackers contains 7g of fat, 16g of carbohydrates and 4g of protein. What are the % Calories for protein? 1 gram of Carbohydrate=4 Calories 1 gram of protein= 4 calories 1 gram of fat= 9 Calories

car: 16x4=64 protein: 4x4=16 fat=7x9=63 64+16+63=143 (16/143)x100= 11/2%

which type of microscope should be used to view small, thin specimens?

compound microscope

Complete the equation: monosaccaride + monosaccharide -----> ________+ water

disaccharide

which type of microscope should be used to view larger, thicker specimens?

dissecting scope

Anthropada

exoskeleton, body divided into segments ( head, thorax, abdomen) bilateradial symmetrycrabs, spider, scorpion

Consider the following question: Does eating a sweet snack cause more weight gain than eating an oily snack? For this experiment, you will collect qualitative data.

false

If you observe fuzzy colonies on your exposure plate, they are most likely bacterial colonies.

false

True/False: The majority of animals have backbones.

false

Yeast belong to kingdom bacteria

false

Which of the following types of plants must live in wet environments for reproduction? (Choose all that apply)

ferns bryophytes

Which of the following characteristics do Monocot Angiosperms exhibit? Choose all that apply.

flower parts in mutliples of 3 leaf veins that are parallel

Which of the following people would have identical DNA fingerprints? Choose ALL that are correct.

identical twins

For the example below, identify the different elements of the experiment. A researcher wants to find out if spraying apples with pesticide affects the vitamin levels in those apples.

independent variable: application of pesticide on apples dependent variable: vitamin level standardized variable: type of apples experimental treatment: the group of apples that get sprayed with pesticide control treatment: the group of apples that do not get sprayed with pesticides

The following question is based on the natural selection experiment that you conducted online (corresponding to pp. 190-192 in your lab manual). Identify the following elements of the predation experiment that you conducted on the Desert Sand background.

independent variable: the color of the predator dependent variable: % survivors standardized variable: the type of predator

You are interested in testing the following hypothesis: "Students who drink coffee before an exam will score higher on the exam than students who don't drink coffee." Identify the following:

independent variable: whether or not students drink coffee Dependent variable: the exam score standardized variable: the type of exam control treatment: students who do not drink coffee experimental: student who drink coffee

For the fermentation experiment where you observed the effect of different sugars on the fermentation rate in yeast, identify each of the following.

independent: different sugars dependent: carbon dioxide production control treatment: water standardized variable: amount of sugar

Which of these individuals is more "fit" from an evolutionary perspective?

individual C lives for 5 years and has 4 surviving offspring

The bond between oppositely charger ions is an ______ bond

ionic

Gel electrophoresis separates DNA fragments on the basis of differences in their ______.

length

in order to have a positive charge, and atom must have _____________.

more protons than electrons

Does eating a sweet snack cause more weight gain than eating an oily snack? select a scientifically testable hypothesis that would be appropriate for this question.

participants who snack on candy gain more weight than those who snack on chips

Which of the following traits do gymnosperms and angiosperms BOTH have (and other plant groups lack), that helped them survive and reproduce in drier climates? Choose all that apply.

pollen seed

Which of the following structures are modified stems that store nutrients allow propagation? Choose all that apply.

potato tuber

Which of the following are characteristics that are used to classify and divide the animal phyla? Select all that apply.

presence of absence of tissues body symmetry

Cnidaria

radial symmetry, two tissue layers, stinging cells. sea jellies

Cnidaria: body symmetry = Radial , tissues are present

radical present

Which of the following are freshwater aquatic biomes? (Choose all that apply)

rivers lakes and ponds wetlands streams

Nematoda

round, worm-like body, no segmentation, tapered at both ends bilateral symmetry roundworm

Which of the following animals routinely rely on electroreception to navigate and find food? Select ALL that apply.

sharks rays

Which of the following senses would be LEAST useful for gathering information or communicating in the dark?

sight

sugar dissolves when stirred into water. The sugar is the _______ the water is the _______, and the sweetened water is the ________

solute... solvent..... solution

Identify the substrate, the main product, and the by-products (waste products) of fermentation in yeast.

substrate : glucose main product: ATP by-product: carbon dioxide and alcohol

Which of the following are considered basic human senses? (Choose all that apply)

taste sight smell hearing touch

What benefit does the Hawaiian Bobtail squid get from the Vibrio fischeri bacteria?

the bacteria provide the squid with camouflage

Lichens can often survive in very harsh environments that most other organisms cannot tolerate. What characteristics of lichens allow them to survive in such environments?

the fungi provide protection

Why are nonvascular plants much smaller than vascular plants?

they cannot transport water and nutrients as efficiently

The following question is based on the rock pocket mouse video "Making of the Fittest: Natural Selection and Adaptation". In what way were the mice living on dark lava rock in different regions DIFFERENT from each other?

they had different mutations

According to Fig. 12.1 in your lab manual, which of the following biomes are NOT found in the continental US? (Choose all that apply)

tropical rainforest tundra

ALL bacteria use quorum sensing to communicate

true

Eukaryotic cells have a nucleus

true

Prokaryotic cells have no membrane-bound organelles.

true

True/False: Humans have bilateral symmetry.

true