POB Lab Final

true

All lab organisms should be treated as potentially dangerous (even if they are cute).

true (genotypes describe the genetic content while phenotypes interpret it by appearance or effect)

An example of two different genotypes might be "heterozygous dominant" and "homozygous recessive"

arthropods

Animals that are segmented and have jointed appendages and an exoskeleton are members of the phylum _____.

one (one chromosome determines sex in humans. The other 22 are autosomal

How many sex chromosomes are in a human gamete?

isotonic solution

Human erythrocytes function best in a(n) _____.

10%

Only about ______ of the energy of one level is available to the next level.

family

Organisms that belong to the same ___ are most closely related.

false

"Cafeteria roenbergensis" could be an example of a scientific name.

look for cell walls under a microscope

A graduate student finds an organism in a pond and thinks it is a freshwater sponge. A professor thinks it looks more like an aquatic fungus. How can they decide whether it is an animal or a fungus?

facilitated diffusion

A molecule moves down its concentration gradient using a transport protein in the plasma membrane. This is an example of _____.

interconnections

A more accurate look at how energy is transferred can be found in a food web, which includes _______________ between producers and consumers.

there is a change in the DNA sequence of a gene

A mutation occurs when _____.

The student did not turn the light on until after 10 minutes had already passed.

A student set up two test tubes containing Elodea plants and sodium bicarbonate and topped each of them with a volumeter. Tube A was wrapped in aluminum foil. Both tubes were placed in a test tube rack in front of a lamp containing a bright white bulb. The student obtained the following data from her experiment. Which of the following statements could explain this data?

volumeter

During the expirement measuring the energy production in plants, the instrument used to measure oxygen consumption was a

false

Enzymes are consumed in chemical reactions and must therefore be replenished.

true

Enzymes can be reused.

true

Enzymes increase the reaction rate of a specific reaction.

24 hours of missed lab

Homework that was due on the day of an excused absence is then due within

membranes form spontaneously in aqueous environment s

How do membranes form?

yellow

How does a phenol red-containing solution look if CO2 level is high?

the frequency of the green allele will increase

If color is an inherited trait in beetles, and birds are more likely to eat brown beetles than green beetles, _____

nondisjunction

In 95% of cases of Down's syndrome, there is an extra piece of chromosome 21 in every cell. This condition is the result of

dominant

In a heterozygous individual the allele being expressed is

false

In the meadow habitat I found 107 individuals of 10 different species. In the forest habitat I found 87 individuals of 2 species. In this case, the forest has greater species richness.

germinating seeds; germinating seeds

In the soybean experiment, the ____ used more oxygen and the ____ used more ATP.

CO2

In the yeast fermentation experiment, what is being produced to cause the air bubble at the top of the tube to increase over time?

results

In which section of a lab report do you include visual representations of the data?

the louder calls stimulate the female to orient to the loud male, ignoring quieter males.

It has been shown that female Pacific tree frogs (Hyla regilla) are more likely to choose to mate with a male with a louder call than other quieter local males. A proximate explanation for this might be that _____.

rabbit: primary consumer hawk: secondary consumer clover: primary producer

Match the local organisms with their commonly observed trophic level. Each will be used only once.

true

Most biologists agree that the most important metabolic pathway of living organisms is photosynthesis because its products directly or indirectly affect most living organisms.

false

Natural selection increases variation within a population.

nondisjunction

Occasionally, chromosomes fail to separate during meiosis, leading to a condition in which the diploid number is not normal. This phenomenon is called

band marked B

Paper chromatography was used to produce the result seen below. Which of the bands would be the least likely to absorb yellow wavelengths of light during photosynthesis?

true

Phospholipids are comprised of 2 fatty acid tails and a glycerol phosphate head.

by scientists for consumption by scientists for the advancement of science.

Primary peer-reviewed literature is written

true

Science is a process/methodology by which we try to answer questions about the natural world.

No. Natural selection changes the traits of some organisms quite quickly, in ways that are clearly adaptive. Scientists have documented such changes in thousands of studies.

Sometimes critics charge that evolution is based on mere speculation because it cannot be directly observed or experimentally induced. Is this true of evolution by natural selection?

true

Sowbugs and pillbugs are arthropods.

few; web

The effect on energy seen through moving down feeding levels explains why __________ carnivores can be supported in a food ______.

a brief explanation of the experiment and information about what is on each axis.

The figure caption of a graph/figure should consist of at least

DNA replication

The first step of bacterial replication is _____.

1.558

The numbers of five species of ungulates (hooved animals) were counted at two different savanna sites in eastern Africa. Use the data in the following table to answer the question below.

oxygen and carbon dioxide

The plasma membrane is selectively permeable. Which of the following can pass freely through the membrane with no assistance?

loss; tropic levels

The short length of food chains can be attributed to the ______ of energy between ______________________.

active site

The substrate binds at the enzyme's

76 mL

Tube C contained non-germinating seeds. If the initial measurement for this tube was 82mm, what was the final measurement?

false

Water and hydrogen peroxide react to form oxygen.

energy

What generally flows in one direction through an ecosystem, from producers up through each level of consumers, and is not recycled?

osmosis

What name is given to the process by which water crosses a selectively permeable membrane?

There would be confounding variables. You are comparing more than one difference simultaneously. The bugs might actually prefer light environments but dislike cool environments.

What would be problematic about making one side of the sowbug chamber hot and dark while the other side is cool and illuminated?

heterozygous purple pea plant and heterozygous purple pea plant

When Mendel crossed two purple-flowered pea plants with each other, he obtained a phenotypic ratio of 3:1 (purple-flowered pea plants to white-flowered pea plants). His results are consistent with which of the following sets of parents?

biological... different species

When a horse and a donkey mate, they produce infertile hybrids called mules. According to the _____ species concept, horses and donkeys are _____.

CO2 is produced during both aerobic and anaerobic processes; we couldn't be sure cellular respiration was taking place.

When trying to determine the rate of cellular respiration (an aerobic process), why is oxygen measured and not carbon dioxide?

true

When you are extracting DNA one of the last steps is to use ice cold ethanol to precipitate the pure DNA out of solution.

false

When you draw images from slides, the only thing you must label is the type of specimen viewed.

absorbs light energy

Which best explains the role of plant pigments in photosynthesis?

Are wood frog tadpoles cuter than bullfrog tadpoles?

Which of the following is not a question that can be answered using the scientific method?

its strands have sugar-phosphate backbone

Which of the following is true about double-stranded DNA?

a group of feathered, endothermic dinosaurs

Which of the following statements best describes the current scientific view of birds?

Using your roommate's completed Lab Manual from a previous semester to complete assignments. Giving your lab partner your manual to copy two answers.

Which of the following would be considered a violation of the University's Academic Integrity Policy?

time of daytime of day season temperature

Which on the following might have an impact on the organisms you were able to observe in your plots?

phylogenetic

Which species concept is a marine microbiologist extracting DNA from seawater likely to use?

false

You must know how long ago each group arose in order to construct a phylogenetic tree.