Biology 22571

subject Type Homework Help
subject Pages 18
subject Words 2302
subject Authors Cecie Starr, Christine Evers, Lisa Starr, Ralph Taggart

Unlock document.

This document is partially blurred.
Unlock all pages and 1 million more documents.
Get Access
page-pf1
Respond to the following statements with reference to the four steps of the nitrogen
cycles listed below.
a. nitrogen fixation
b. nitrification
c. denitrification
d. ammonification
The process whereby nitrite is converted to nitrate is an important part of this process.
Hydrogenation is a chemical process that
a. turns liquid oil to solid fats.
b. turns amino acids into proteins.
c. turns DNA into lipids.
d. creates stable alternative energy sources.
e. does none of these.
tubular reabsorption
page-pf2
Choose the one most appropriate answer for each.
a. do not maintain the same body temperature at all times; are capable of internal heat
production
b. heat energy is released to the air when liquid water converts to gaseous form
c. bulk flow of protein-free plasma from capillaries into Bowman's capsule
d. animals with more or less constant body temperature
e. emission of heat from body surface when environmental temperature is lower than
the body temperature
f. movement of ions from peritubular capillaries into nephron tubules
g. loss of too much body heat
h. heat next to the body's surface undergoes mass transport by air or water currents
i. active and passive transport of solutes from peritubular capillaries into the glomerular
capillaries
j. a long, slender, tubular unit in the vertebrate kidney that forms urine
k. body temperatures rise and fall with environmental changes
l. secreted by adrenal glands; influences sodium reabsorption
m. passive transport of water; active and passive transport of solutes out of the nephron
into peritubular capillaries
n. heat energy is transferred from high to low temperature regions due to collisions
between adjacent molecules
o. released from the posterior lobe of the pituitary in response to hypothalamic signals
p. toxic substances are extracted from blood circulating in cellophane tubes suspended
in a warm-water bath
q. erection of hairs and feathers by smooth muscles in the skin
page-pf3
There will be approximately ____ mice in four months in a population of 1,000 mice
where 500 mice are born and 400 mice die monthly.
a. 1,060
b. 1,160
c. 1,260
d. 1,360
e. 1,460
Amniocentesis is
a. a surgical means of repairing deformities.
b. a form of chemotherapy that modifies or inhibits gene expression or the function of
gene products.
c. used in prenatal diagnosis to detect chromosomal mutations and metabolic disorders
in embryos.
d. a form of gene replacement therapy.
e. all of these.
page-pf4
Although carbon dioxide contains carbon, it is not considered an "organic" compound
because
a. it is not found in the earth's crust.
b. it is not present in living cells.
c. the carbon atom is not bonded to at least one hydrogen atom.
d. the carbons are not in chains or rings.
e. it is too small.
On the illustration, "A" and "B" should be labeled respectively
a. consumers; producers
b. decomposers; producers
c. producers; redistributors
d. producers; consumers
page-pf5
e. consumers; decomposers
Choose the proper item below for the following statements.
a. operon
b. operator
c. promoter
d. lactose
e. regulator gene
A repressor protein can shut down transcription by binding to this item.
Which statement is NOT true about malaria?
a. The disease is caused by an evolving organism.
b. It is transmitted from person to person by the bite of a mosquito.
c. Its mortality rate is linked to the allele for Sickle Cell Anemia.
d. Its greatest mortality rate is in Africa.
e. The number of cases reported in North America is rising.
page-pf6
semicircular canals
Choose the one most appropriate answer for each.
a. dissipates excess vibrational energy to the middle ear
b. contains the organ of Corti
c. separates the outer and middle ears
d. membrane-covered gateway to inner ear
e. consists of tissue containing rods and cones
f. bone in middle ear
g. peak height and valley depth of sound waves are its basis
h. maintain balance and position; detect acceleration
i. depends on the number of wave cycles per second
j. a substance that elicits a response in members of the same species
k. regulates size of pupil and amount of incoming light
Which of the following does NOT apply to parasitoids?
page-pf7
a. They are insects
b. They kill animals on which they feed
c. The host usually survives
d. The larvae develop in host body
e. Some are effective biological control agents
About twelve to twenty-four hours after the previous meal, a person's blood-sugar level
normally varies from 60 to 90 milligrams per 100 milliliters of blood, though it may
rise to 130 mg/100 ml after meals high in carbohydrates. That the blood-sugar level is
maintained within a fairly narrow range despite uneven intake of sugar is due to the
body's ability to carry out
a. adaptation.
b. inheritance.
c. metabolism.
d. homeostasis.
e. all of these processes.
gastrin
page-pf8
Choose the one most appropriate statement for each.
a. made in the small intestine and pancreas; act on peptide fragments
b. glucose, fructose, and galactose are examples
c. made in the pancreas; acts on fats
d. made by the pancreas and salivary glands; acts on starch
e. made by the small intestine; acts on double sugars
f. made by the pancreas; acts on proteins and polypeptides
g. contains cholesterol; helps emulsify fats
h. made in the stomach; acts on proteins
i. stimulates hydrochloric acid secretion
j. circular muscle acts like valve
Which of the following is(are) an important influence(s) on the evolution of mammals?
a. continental movement
b. geographic isolation
c. competition between species
d. decline of the dinosaurs
e. all of these
page-pf9
Use the figure above to answer the following questions. It shows the life cycle of
Chlamydomonas, a green alga.
Asexual reproduction is indicated by letter
a. A.
b. B.
c. C.
d. D.
e. E.
The best control for rats is
page-pfa
a. a very effective rodenticide.
b. removal of garbage which causes them to eat each other.
c. cats introduced into the food storage buildings.
d. new sonic disturbance boxes.
e. none of these.
Choose the one most appropriate response for each.
a. contain enzymes for intracellular digestion
b. are primary cellular organelles where proteins are assembled
c. package cellular secretions for export
d. extract energy stored in carbohydrates; synthesize ATP; produce water and carbon
dioxide
e. synthesize subunits that will be assembled into two-part ribosomes in the cytoplasm
f. transcribe, translate hereditary instructions into specific proteins
g. store substances
h. encode hereditary information
i. help distribute chromosomes to the new cells during cell division
j. convert light energy to chemical energy stored in the chemical bonds of glucose or
starch
RNA molecules
page-pfb
Oxygen-poor blood circulates through
a. A.
b. B.
c. C.
d. D.
e. A, C, and E.
page-pfc
The second structure encountered in a biopsy of the stomach is the
a. mucosa.
b. submucosa.
c. longitudinal muscle layer.
d. circular muscle layer.
e. serosa.
The female gametophyte is the
a. flower.
b. ovule.
c. embryo sac.
d. carpel.
e. ovary.
Respond to the following statements with reference to the flower parts listed below.
a. megaspore
page-pfd
b. microspore
c. ovule
d. ovary
e. seed
This gives rise to haploid pollen grains.
Select the best choice for the following statements using the five groups listed below.
a. apicomplexans
b. amoebozoans
c. euglenoids
d. dinoflagellates
e. trypanosomes
All members of this group are parasitic alveolates.
page-pfe
The following questions refer to the figures above.
Which of the letters in the above figure represents the ovaries where eggs are produced?
a. A
b. B
c. C
d. D
e. more than one of these
page-pff
Use the figure above showing developmental day 14 to answer the following questions.
The yolk sac is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
Which of the following is NOT TRUE of photolysis?
a. It is a function of the cyclic pathway.
b. It involves photosystem II.
c. It occurs in the light-dependent reactions.
d. It is the source of oxygen in photosynthesis.
e. It directly replaces electrons lost by p680.
page-pf10
Match the following letters to the number with which they best correspond.
a. Observation
b. Question
c. Hypothesis
d. Prediction
e. Observational experiment
f. Laboratory experiment
g. Assessment
h. Report
Establish identical groups of laboratory rats. Expose one group (the model system) to
cigarette smoke and compare the incidence of new cancers (if any) with the incidence in
the control group.
Respond to the following statements in reference to the five items listed below.
a. antigens
b. antibodies
c. helper T cells
page-pf11
d. cytotoxic T cells
e. effector B cells
Proteins produced by these attack bacteria and viruses in the blood.
Use the five compounds listed below for the following questions.
a. ethanol
b. pyruvate
c. lactate
d. citrate
e. acetaldehyde
This compound is an intermediate product of alcoholic fermentation but not lactate
fermentation.
Differentiation is the process by which cells
a. mature into larger cells.
b. change from one type of muscle to another.
page-pf12
c. allows cells to change to fix injuries.
d. turn on all the genomic genes.
e. become specialized by turning on some genes and turning off others.
"Perception" differs from 'sensation" when referring to a stimulus in
a. the type of receptor stimulated.
b. understanding the significance of the stimulus.
c. the number of receptors that depolarize.
d. feeling exactly what is happening at the site.
e. responding to the stimulus.
Labeling.
page-pf13
vagina
A __________ is a term given to a macromolecule (large molecule) made up of
individual subunits.
__________ fights infection by increasing the metabolic rate.
page-pf14
Mendel's monohybrid experiment results led to his law of __________.
Several times in Earth's history, land masses have converged as supercontinents.
_________and __________ are examples.
Why do plant roots populate the A horizon most heavily?
page-pf15
A chemical interaction in which the products contain less free energy than the reactants
is called a(n) __________ reaction.
Imagine a cell entered mitosis but was unable to make microtubules. What stage of
mitosis would it be stuck in?
Laboratory simulations provide indirect evidence that organic compounds such as
__________ and __________ self-assemble spontaneously under conditions like those
thought to have prevailed on the early Earth.
Activity of the two halves of the cerebrum is coordinated by means of the __________
that connects them.
page-pf16
__________ are symbionts with young roots that enhance a plant's ability to absorb
mineral ions from soil.
Do arteries always carry highly oxygenated blood?
Insects have a __________, with many individual units.
page-pf17
Labeling.
Hypodermis
Features that contributed to success on land include a __________ and __________ that
minimize water loss.
How old was the world thought to be when Darwin began his voyage? How old is it
page-pf18
thought to be now?
__________ or __________ extend from many prokaryotic cells and serve in
attachment and motility.
Female gonads are regulated by __________ hormone and luteinizing hormone.

Trusted by Thousands of
Students

Here are what students say about us.

Copyright ©2022 All rights reserved. | CoursePaper is not sponsored or endorsed by any college or university.