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ISB 204 Exam 2 Flashcards
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183
Biology
Undergraduate 1
11/07/2010

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Term
What is the first phase of Mitosis?
Definition
Prophase
Term
What is a period of growth and preparation of cell division?
Definition
Interphase
Term
What is the division of Cytoplasm called?
Definition
Cytokinesis
Term
This keeps the chromosome number constant through generatios and increases genetic variability in the population.
Definition
Meiosis
Term
What is the order of the 4 major stages of Mitosis?
Definition
Prophase, Metaphase, Anaphase, Telophase.
Term
The genetic mutation of an extra chromosome 21 is:
Definition
Down Syndrome
Term
What is the second stage of mitosis?
Definition
Metaphase
Term
Which of the following is matchd correctly?
Definition
Interphase: Copying
Term
Cytokinesis is:
Definition
The division of the cytoplasm.
Term
The type of nuclear division that results in identical body cells is called:
Definition
Mitosis
Term
What occurs during metphase 1?
Definition
Homologous pairs of chromosomes line up at the midline of the cell.
Term
At shich stage in meiosis does cytokinesis occur and form two haploid daughter cells?
Definition
Telophase
Term
Which of the following does not describe the process of Mitosis?
Definition
It produces up to four haploid cells.
Term
What is NOT a potential use for stem cells?
Definition
None of the above.
Term
What are the two major phases of the cell cycle?
Definition
Interphase and Cell Division
Term
Stem cells from the umbilical cord are:
Definition
Less likely to be rejected by recipient than bone marrow.
Term
How many pairs of chromosomes are in all cells, except for egg and sperm?
Definition
23
Term
Which of the following is NOT a stage of mitosis?
Definition
Interphase
Term
Which is NOT a side effect of nondisjunctive gamete?
Definition
Crossing over between nonsister
Term
Failure of chromosomes to ______ during meiosis creates cells with extra or missing chromosomes
Definition
separate
Term
Which of the following best describes mitosis?
Definition
Results in growth and repair
Term
Somatic cell division consist of...
Definition
Mitosis and cytokinesis
Term
How many phases of meiosis are there?
Definition
2
Term
How much more likely is a 45 year-old woman to give birth to a baby wit Down syndrome than a 20 year-old woman?
Definition
45 times as likely
Term
Sister chromatids separate and move to opposite ends of the cell during which process:
Definition
Mitosis
Term
What is the combination of a DNA molecule and specialized proteins called?
Definition
chromosomes
Term
In which phase of Meiosis I do homologous pairs of chromosomes line up at the midline of the cell?
Definition
Metaphase I
Term
Which is not a characteristic of Mitosis?
Definition
Part of the chromosomes are exchanged in crossing over.
Term
Whatis interphase?
Definition
period between cell cycle and cell division
Term
DNA replication during ______ forms two copies of each chromosome
Definition
Interphase
Term
Which of the following [prophase, metaphase, anaphase, telophase, cytokinesis] are involved in cell division?
Definition
all of the above
Term
Which of the following is not a chracteristic of Down Syndrome?
Definition
a single X chromosome
Term
Klinefelter syndrome is observed in
Definition
Males who are XXY
Term
What can be used to treat the common cold?
Definition
All of these (Zinc, Vitamin C, Antibiotics, Rest)
Term
Bronchitis is the inflammation of the:
Definition
Bronchi
Term
The __________ is an adjustable entryway that produces the voice.
Definition
Larynx
Term
Smoking can cause:
Definition
All of these (Cancer, Lung Disease, Stroke, Heart Disease)
Term
How many air tubes does the trachea divide into?
Definition
Two
Term
Which does not make up jthe lower respiratory system?
Definition
Pharynx
Term
What is the path of air during inhalation?
Definition
Noes, Trachea, Bronchus, Bronchiole, Alveolus in lung, Blood capillary.
Term
The larynx...
Definition
Is an air passageway, Prevents food and drink from entering the loweer respiratory system, and produces voice.
Term
What is the main function of the pharynx?
Definition
Passageway for food, air, and drink.
Term
Which of these is not part of the lower respiratory system?
Definition
Pharynx
Term
What is not one of the four processes that play a part in respiration?
Definition
Filtration and cleansing
Term
Most carbon dioxide is transported in the blood from _____ to the ______ as bicarbonate ions that were formed in red blood cells by carbonic anhydrase.
Definition
Cells; lungs
Term
This is a thin-walled, rounded chamber surrounded by a dense network of capillaries.
Definition
Alveolus
Term
Sudden fever and chills, chest pain, cough and shortness of breath are among the symptoms of _____?
Definition
Pneumonia
Term
What is the primary function of the sinuses?
Definition
Lessens weight on the head; warms and moistens inhaled air.
Term
What is breathing primarily controlled by?
Definition
Respiratory centers in the brain.
Term
Oxygen diffusion, or gas exchange, into the blood occurs in this structure.
Definition
Alveoli
Term
The amount of air inhaled or exhaled during a normal breath is called the...
Definition
tidal volume
Term
Between _____ and ______ percent of all cases of lung cancer are caused by smoking and are, therefore, preventable.
Definition
85, 90
Term
These are the surfaces of the lungs used in gas exchange.
Definition
Alveoli
Term
The abbreviation for influenza is:
Definition
flu
Term
The pharynx is commonly called...
Definition
the throat
Term
Strep throat is most commonly a problem in which age range...
Definition
5-15 years
Term
In exhalation, which of the following occurs?
Definition
Rib cage moves inward, intercostal muscles relax and diaphragm relaxes
Term
What is not a respiratory disorder?
Definition
Insomnia
Term
In inhalation, which of the following occurs?
Definition
Rib cage moves outward, intercostal muscles contract, and diaphragm cntracts
Term
What is Alveoli?
Definition
A thin-walled, rounded chamber surrounded by a dense network of capillaries
Term
The funciton(s) of the nose is(are)...
Definition
All of the above
Term
These structures are all part of the lower respiratory system except...
Definition
Pharynx
Term
Each of our lungs contians approximately _____ million alveoli.
Definition
300
Term
The amount of air inhaled or exhaled during a normal breath is called the ______.
Definition
Tidal volume
Term
The larynx is...
Definition
Responsible for housing the vocal chords
Term
Which is not part of the lower respiratory system?
Definition
Heart
Term
Which is not a respiratoy disorder?
Definition
exhalation
Term
Organs from several body systems eliminate waste
Definition
true
Term
The kidneys, ureters, bladder, and urethra make up the urinary system
Definition
true
Term
Huan being can't live without one of the kidneys
Definition
false
Term
Which part of the urinary tract does urine exit through?
Definition
Urethra
Term
What is dialysis?
Definition
A technique used to provide artifical replacement for lost kidney funciton
Term
Which hormone is manufactured by the hypothalamus and then travels to the posterior pituitary for storage and release?
Definition
Antiduretic hormone (ADH)
Term
Which of the following methods can help men and women avoid urinary tract infections?
Definition
All of the above
Term
What is Glomerular filtration?
Definition
Blood pressure forces water and small solutes from teh blood in the gomerulus to the space inside the glomerular capsule
Term
The urinary system consists of what?
Definition
2 kidneys, 2 ureters, 1 urinary bladder and 1 urethra
Term
What is a funciton of the kidneys?
Definition
Produces urine
Term
Where in the body are the kidneys located?
Definition
Above the waist against the back wall of the abdominal cavity
Term
_____ is the elimination of wastes and excess substances from the body.
Definition
Excretion
Term
_____ transports urine from the urinary bladder to the outside of the body.
Definition
Urethra
Term
The outer regio of the kidney is the _____.
Definition
Renal cortex
Term
What is the term that describes when the kidneys stop working?
Definition
Renal failure
Term
In one day, a pair of kidneys filters all of the blood in a body about how many times?
Definition
30 times
Term
An infeciton of the kidneys is called...
Definition
Pyelonephritis
Term
Which of the following is not a funciton of the kidneys?
Definition
Stores urine
Term
Presence of microorganisms in the organs of the urinary system can cause...
Definition
A urinary tract infection.
Term
The miracle of every human life begins when the sperm and egg unite, which is known as...
Definition
Fertilization
Term
In prenatal development, cleavage is...
Definition
A series of mitotic cell divisions beginning as the zygote moves down the oviduct.
Term
The organ that delivers oxygen and nutrients to the embry and carries carbon dioxide and other wastes away is called the...
Definition
Placenta
Term
What is not a change that occurs with aging?
Definition
Brain mass increases
Term
What covers the surface of the embryo and forms the outer layer of skin and it's derivatives such as hair, nails, oil glands, and mammary glands?
Definition
Ectoderm
Term
The organ that delivers oxygen and nutrients to the embryo and carries carbon dioxide and other wastes away is?
Definition
Placenta
Term
At the second stage of labor, it begins with...
Definition
Full dilation
Term
How many chromosomes do the mother and father each provide to the embryo?
Definition
23
Term
What are developmental defects present at birth known as?
Definition
Birth defects
Term
In which stage of life does cell differentiation occur?
Definition
Embryonic Period
Term
What is a blastocyst?
Definition
A ball of cells with a fluid-filled cavity
Term
What three events chracterize the pre-embryonic period?
Definition
Fertilization, cleavage, and implantation
Term
Cleavage is...
Definition
A rapid series of meiotic cell divisions
Term
Birth defects may involve...
Definition
All of these (Structure, Funciton, Behavior, Metabolism)
Term
What is the process by which milk is produced and ejected from the mammary glands?
Definition
Lactation
Term
What is the process by which cells become specialized with respect to structure and function?
Definition
Cell differentiation
Term
When fluid from the urine cavity passes through the pellucida and accumulates in the forming cavity, the morula is converted into...
Definition
Blastocyte
Term
The embryonic period, which occurs from week 3 to week 8, is a period where the developing human is called a(n)...
Definition
embryo
Term
A normall developing male embryo is represented by...
Definition
XY
Term
The process referred to as cleavage is when a zygote...
Definition
Undergoes a series of rapid cell divisions
Term
What is the order of the human prenatal period?
Definition
Pre-embryonic period, embryonic period, fetal period.
Term
How many chromosomes are provided by the mother's egg?
Definition
23
Term
What is the thin layer of cells that will give rise to the extra embryonic membrane and is the embryo's contribution to the placenta called?
Definition
Trophoblast
Term
What is the correct order for the 3 stages of labor?
Definition
Dilaito stage, expulsiton stage, placenta stage.
Term
A fertilized ovum is referred to as...
Definition
Zygote
Term
Identical twins can be formed if dividing cells separate fromthe...
Definition
Morula
Term
Babies born after f38 weeks fo development are considered _____ infants, while those born 37 weeks or sooner are called _____ infants...
Definition
Full term, premature
Term
What are the major periods in prenatal development, from first to last:
Definition
Pre-embryonic, Embryonic, Fetal
Term
Which of the following are changes that occur to the skeletal system with aging:
Definition
All of the above
Term
What is the first period of development in human life?
Definition
Prenatal Period
Term
Which of the following is a benefit of breast-feeding?
Definition
All of the Above
Term
The loss of a piece of a chromosome is called a _____. The gain of a piece of chromosome is called a _____.
Definition
Deletion, Duplication
Term
What term refers to our observable traits?
Definition
Phenotype
Term
Blood type is determined by the presence of certain polysaccharide (sugars) on the surface of Red Blood Cells. Type A blood has a A polysaccharide; type B has the B polysaccharide; type O has _____.
Definition
None of the above.
Term
Which of the following is NOT an example of Chromosome alterations?
Definition
Balancing
Term
The removal and analyses of a small amount of tissue containing chorionic villi, the small, fingerlike projections of the part of theplacenta called the chorion is called:
Definition
Chorionic villi Sampling (CVS)
Term
A condition in which a single gene has many effects is:
Definition
Pleitropy
Term
A male is...
Definition
XY
Term
Polygenic means...
Definition
Many genes affect one trait (Incorrect on the discussion board, listed as one gene affects one trait)
Term
In _____, a needle is inserted through the lower abdomen into the uterus, and a small amount of amniotic fluid is withdrawn.
Definition
Amniocentesis
Term
Which of the following letter combinaitons represents a homozygous dominant allele pair?
Definition
FF
Term
Sex linked genes are located on...
Definition
sex chromsomes
Term
Most traits are controlled by...
Definition
many genes
Term
A chart showing the genetic connections between individuals in a family is called?
Definition
Pedigree
Term
What is the final stage of Mitosis?
Definition
Telophase
Term
How may infants are born with Down syndrome?
Definition
1 in every 800-1,000
Term
How many chromosomes do somatic cells have?
Definition
46
Term
What percentage of infants with Down syndrome have heart defects?
Definition
50%
Term
An individual with two copies of the same allele of a gene are said to be...
Definition
Homozygous
Term
What is the definition of the chromosome alteration called deletions?
Definition
Parts of chromosome is lost
Term
A dominant allele produces what?
Definition
A funcitonal protein
Term
Sex-linked genes are located on what chromosomes?
Definition
Sex chromsomes
Term
A principle that half of the gametes bear one allele, and half of the gametes bear the other is known as...
Definition
Law of segregation
Term
Which of the follwoign is caused by having an extra chromosme 21, resulting in 47 chromosomes instead of 46?
Definition
Down syndrome
Term
All of thefollwoing phenotypes of humans are considered recessive genotypes except...
Definition
Freckles
Term
Gregor Mendel is a(n) _____ monk.
Definition
Augusinian
Term
How many chromsome copies do female bees have?
Definition
2
Term
How many chromosomes does a diploid have?
Definition
2
Term
Assume F is the dominant alleles of freckles, and a female has FF alleles in her eggs and a male has ff alleles in his sperm, if they have a child, what is the opportunity the child will have freckles?
Definition
1
Term
The law of dominance
Definition
Helps us predict how simple traits are passed to the next generation
Term
Which is not the Types of Chromosome Alterations?
Definition
Polygenic
Term
What are the most important structures in the reproductive system in both males and females?
Definition
Gonads
Term
What is important for sperm production as well as teh development of male characteristics?
Definition
Testosterone
Term
What surrounds the upper portion of the urethra, just beneath the urinary bladder?
Definition
Prostate Gland
Term
What is the most common method of female sterilization?
Definition
Tubal Ligation
Term
Which of the followign helps the temperature within the testes fairly stable?
Definition
Scrotum
Term
Which of the following is not a stage of the human sexual response?
Definition
Sleep
Term
Which of the following produces sperm and testosterone?
Definition
Testes
Term
Which of the following contributes to sexual arousal?
Definition
Clitoris
Term
What hormone in the male reproductive system stimulates the anterior pituitary gland to produce LH (luteinizing hormone)?
Definition
GnRh (gonadotropin releasing hormone)
Term
Which is NOT a structure found int he male reproductive system?
Definition
Oviducts
Term
Which of the following events occur during day 15-21 of the OVARIAN cycle?
Definition
Corpus luteum forms and secretes estrogen and progesterone
Term
Which part of the sperm contains mitochondria that will provide energy for the sperm's trip to the egg?
Definition
midpiece
Term
What are the reproductive structures that produce gametes and hormoes called?
Definition
Gonads
Term
What is the funciton of the testes?
Definition
Produce sperm and testosterone
Term
If sperm delivery is appropriately timed with egg production, a sperm and egg may fuse in a process called...
Definition
Fertilization
Term
Menopause is...
Definition
The end of a females reproductive potential when ovulation and menstruation cease.
Term
What is the funciton of clitoris?
Definition
Contributes to sexual arousal
Term
What are the funcitons of the ovaries?
Definition
To produce eggs and the hormones estrogen and progesterone
Term
Which of the following is produced in testes?
Definition
Sperm
Term
What is the function of the uterus?
Definition
House and nourish the developing baby until birth
Term
What supports the growht of the developing embryo?
Definition
Uterus
Term
Where is testosterone produced?
Definition
Testes
Term
The degeneration of the corpus luteum results in falling levels of what two hormones?
Definition
Estrogen and Progesterone
Term
What produces eggs and the hormoens estrogen and progesterone?
Definition
Ovary
Term
Eventually ovulation and menstruation stop completely, at a stage in a woman's life. This stage is called...
Definition
Menopause
Term
What hormone does the hypothalamus release?
Definition
Gonadotropin-releasing hormone
Term
How many pairs of chromosomes do the cells in our body possess?
Definition
23
Term
What is the funciton of the testes?
Definition
To produce sperm and testosterone
Term
The union of an egg and a sperm to form a single cell called the zygote is known as...
Definition
Fertilization
Term
What is the stage a woman goes through when she completely stops ovulation and menstruation?
Definition
Menopause
Term
Which of the following produces eggs and the hormoens estrogen and progesterone?
Definition
Ovary
Term
Produces sperm and testosterone
Definition
Testis
Term
Put thtges of human sexual response in the correct order
Definition
Excitement, plateau, orgasm, resolution
Term
The most reliable way to avoid pregnancy and std's is...
Definition
Abstinence
Term
The events in the ovary known as the ovary cycle, must be closely coordinated with those in the uterus this is known as the ...
Definition
Uterine Cycle
Term
The part of the Earth where life exists is the ______?
Definition
Ecosystems
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