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Biology 100 > Failed quiz questions: 6,7,12,4,18,19,22,8 > Flashcards

Failed quiz questions: 6,7,12,4,18,19,22,8 Flashcards

1
Q

Cytokinesis (cytoplasmic division) in animal cells

  1. begins with the deposition of a very rigid lipid bilayer, which is the major constituent of the cell wall
  2. all of these
  3. occurs when the plasma membrane is pulled inward by a ring of microtubules that has become attached to the cell plate
  4. begins with various deposits of material associated with vesicles and with groups of microtubules at each pole of the nucleus
  5. usually follows nuclear division
A
  1. usually follows nuclear division
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2
Q

Crossing over usually occurs in which of the following stages of meiosis?
prophase I
telophase II
anaphase II
metaphase I
interphase

A

Prophase I

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3
Q

The sequence of subunits in the DNA “backbone” is:
–sugar–base–sugar–base–sugar–base–sugar–base-

–base–sugar–phosphate–base–sugar–phosphate-

–phosphate–sugar–phosphate–sugar–phosphate–sugar

–base–phosphate–base–phosphate–base–phosphate-

A

–phosphate–sugar–phosphate–sugar–phosphate–sugar

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4
Q

James Watson and Francis Crick

established the principle of base pairing

established the double-stranded nature of DNA

all of these

explained how DNA’s structure permitted it to be replicated

proposed the concept of the double-helix

A

All of these

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5
Q

In mitosis, the centrioles move to opposite poles of the cell during prophase.

True

False

A

True

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6
Q

During meiosis II

Cytokinesis results in the formation of a total of two cells.

Homologous chromosomes separate.

Sister chromatids of each chromosome are separated from each other.

Sister chromatids exchange parts.

Homologous chromosomes pair up

A

Sister chromatids of each chromosome are separated from each other.

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7
Q

The DNA segment that carries information coding for a particular amino acid is a:

gene
triplet
nucleotide
deoxyribose sugar
phosphate group

A

triplet

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8
Q

The sister chromatids become separated during what phase of meiosis?
metaphase I
telophase I
anaphase I
anaphase II
prophase II

A

Anaphase II

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9
Q

Cri-du-chat is caused by a/an
inversion
translocation
duplication
autosomal dominant
deletion

A

deletion

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10
Q

A man who carries a harmful sex-linked (on the X chromosome) gene will pass the gene on to:
All of his sons
Half of his daughters
All of his daughters
Half of his sons
All of his children

A

All of his daughters

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11
Q

A couple has a daughter who is color-blind. The mother is not color-blind, but the father is. What is the genotype of the mother for this trait?
two dominant alleles
one abnormal Y chromosome, one normal X chromosome
two recessive alleles
three dominant alleles
one dominant allele, one recessive allele

A

One dominant allele, one recessive allele

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12
Q

If flower color of the offspring was 25% white and 75% red, and flower color were inherited by complete dominance, the parents genotypes must be
one homozygous recessive, the other heterozygous.
all red.
both homozygous dominant.
both heterozygous.
one homozygous dominant, the other heterozygous.

A

Both heterozygous

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13
Q

If a child has an AB blood type, the parents:

can have different blood types, but neither can be blood type O
must be A and B, but not AB
can be any blood type
must both have different blood types
must both be AB

A

can have different blood types, but neither can be blood type O

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14
Q

An X-linked carrier is a

homozygous dominant female
homozygous male
heterozygous male
heterozygous female
homozygous recessive female

A

heterozygous female

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15
Q

Cystic fibrosis is a genetic disorder that results from the inheritance of two recessive alleles. What is the chance that a child will inherit the disorder if one parent is heterozygous for this gene and one parent has cystic fibrosis?

25%
50%
0%
100%
75%

A

50%

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16
Q

Two brown dogs mated. Their offspring were five brown puppies and two white puppies. The most probable genotypes of the two brown dogs are

both Bb
both BB
Bb and bb
BB and Bb
BB and bb

A

Both Bb

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17
Q

Identify the mode of inheritance for each of the following traits: baldness

incomplete dominance
codominance
inheritance of a dominant-lethal allele
sex-influenced trait
X-linked inheritance
polygenic inheritance

A

sex-influenced trait

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18
Q

Alterations in chromosome number can occur with any chromosome, but most alterations are not seen in human populations because:

the genotype still represents a normal condition.

they are lethal during fetal development.

the phenotype is expressed in a continuous range in a given population and thus does not stand out.

the phenotype of homozygous recessive.

most are corrected during the first mitotic event in the fertilized egg.

A

they are lethal during fetal development

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19
Q

Codominance occurs when:

Offspring exhibit several different phenotypic expressions of a single trait

Expression of 2 different alleles alternates from one generation to the next

Both of the alleles in a heterozygote are expressed phenotypically in an individual

A heterozygote expresses an intermediate phenotype

A

Both of the alleles in a heterozygote are expressed phenotypically in an individual

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20
Q

Endocrine Module:

Match each of the following hormones to its target organ.
prolactin

stomach
muscles and bones
breasts
adrenal cortex
thyroid
ovary, testis
anterior pituitary
kidney

A

breasts

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21
Q

Endocrine Mod:

The adrenal medulla produces:

aldosterone
testosterone
epinephrine
cortisol

A

epinephrine

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22
Q

Endocrine Mod:

The body’s major metabolic hormone is called:
calcitonin
adrenaline
thyroid hormone
growth hormone
prolactin

A

thyroid hormone

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23
Q

Which gland releases FSH and LH?

A

Anterior pituitary

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24
Q

Which hormone controls the release of FSH and LH from anterior pituitary?

A

Gonadotropin hormone (GnRH) from the hypothalamus

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25
Q

Endocrine Mod:

Alcohol inhibits the secretion of:

prolactin (PRL)
oxytocin
parathyroid hormone (PTH)
glucagon
antidiuretic hormone (ADH)

A

antidiuretic hormone (ADH)

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26
Q

Endocrine Mod:

The alpha, beta, and delta cells located in the islets of Langerhans of the thyroid produce three different hormones that are important in the regulation of sodium and potassium levels of the blood.

True
or
False

A

False

27
Q

Endocrine Mod:

Which of these hormones is NOT regulated by a hormone from the anterior pituitary gland?

testosterone
cortisol
thyroxine
epinephrine

A

epinephrine

28
Q

Endocrine Mod:

Which hormone decreases blood glucose concentrations?
Cortisol
Growth hormone
Glucagon
Insulin

A

Insulin

29
Q

Digestive Mod:

The opening of the large intestine is called the:
ileum
rectum
cecum
anus
sigmoid colon

A

Anus

30
Q

Digestive Mod:

Secretion of enzyme pancreatic juice is stimulated by the hormone:

cholecystokinin
norepinephrine
epinephrine
secretin

A

cholecystokinin

31
Q

Digestive Mod:
Pancreatic digestive enzymes include ___ for starch, ___ for fats, and ___ for protein.

sucrase/lipase/trypsin
amylase/adipolase/pepsin
sucrase/lipase/pepsin
amylase/lipase/trypsin

A

amylase/lipase/trypsin

32
Q

Digestive Mod:
The end products of carbohydrate digestion are amino acids.
True
Or
False

A

False

33
Q

Digestive Mod:

The anal canal has a voluntary sphincter formed by smooth muscle only.

True
OR
False

A

False

34
Q

Digestive Mod: Proteins are digested to their building blocks which are called:

peptides
fatty acids
glycerol
amino acids
polypeptides

A

amino acids

35
Q

Digestive Mod:
Organ that Produces Bile:

A

Liver.
It is then stored an concentrated in gallbladder

36
Q

Digestive Mod:
Which of these end products of digestion is NOT absorbed by the lacteals in the villi?

sodium ions
vitamin A
vitamin E
fatty acids and glycerol

A

sodium ions

37
Q

Digestive Mod:
Which food is NOT paired with the proper end products of digestion?

fats - fatty acids and glycerol
proteins - amino acids
All of these pairs are correct.
carbohydrates - polysaccharides

A

carbohydrates - polysaccharides

38
Q

Digestive mod:
Someone with liver failure will, in particular, have problems with the digestion and absorption of ______.

fats
proteins
minerals
carbohydrates

A

fats

39
Q

Excretory Mod:
As venous blood is drained from the kidney, which path does it follow:

renal vein, interlobar veins, segmental veins, arcuate veins

renal vein, segmental veins, interlobar veins, arcuate veins, cortical radiate veins

arcuate veins, cortical radiate veins, interlobar veins, renal vein

cortical radiate veins, arcuate veins, interlobar veins, renal vein

cortical radiate veins, arcuate veins, interlobar veins, segmental veins, renal vein

A

cortical radiate veins, arcuate veins, interlobar veins, renal vein

40
Q

Exc Mod:
The bicarbonate buffer system will buffer a strong acid by forming:

a weak base and water
a weak acid and a salt
a weak acid and water
a weak base and a salt

A

a weak acid and a salt

41
Q

Exc Mod:
In tubular reabsorption, negative ions are reabsorbed by the process of passive transport

True
Or
False

A

True

42
Q

Exc Mod: KNOW THIS ONE!!!!
In the kidneys, the process of tubular secretion enables the tubules to put substances into the:

filtrate to be retained in the body
blood to be excreted
blood to be retained in the body
filtrate to be excreted

A

filtrate to be excreted

43
Q

Exc Mod:
In the kidney, the renal pelvis empties urine into the urinary bladder.

True
OR
False

A

False

44
Q

Exc Mod:
Which statement is NOT true of the blood vessels of the kidneys?

Useful materials are reabsorbed directly into the renal vein.

A glomerulus is surrounded by a Bowman’s capsule that receives renal filtrate.

The peritubular capillaries surround all parts of the renal tubule.

The renal artery is a branch of the abdominal aorta.

A

Useful materials are reabsorbed directly into the renal vein.

45
Q

Exc Mod:
As urine moves through a nephron, it is modified by ions, water and other materials either being secreted into the fluid or by efflux of substances out of the urine. However, such modifications do not occur in this region of the nephron.

distal tubule
loop of Henle
Bowman’s capsule
proximal tubule
collecting duct

A

Bowman’s capsule

46
Q

Exc Mod:
The urea in urine comes from the metabolism of:

both A and B
both A and B, and ketone acids
nucleic acids
amino acids

A

amino acids

47
Q

Exc Mod:
Which statement is true of nephrons?

They make up the renal cortex and renal medulla.

They are the functional units of the kidneys.

All of the above

They are the structural units of the kidneys.

A

All of the above

48
Q

Exc Mod:
The energy for the process of filtration is provided by:

active transport
diffusion
ATP
blood pressure

A

blood pressure

49
Q

Exc Mod:
The part of the CNS that is directly involved in the urination reflex is the:

hypothalamus
cerebrum
spinal cord
medulla

A

spinal cord

50
Q

Exc Mod:
The kidneys respond to increased acidity of body fluids by:

excreting sodium ions
excreting hydrogen ions
excreting potassium ions
retaining hydrogen ions

A

excreting hydrogen ions

51
Q

Exc Mod:
Tubular reabsorption begins in the glomerulus.

True
OR
False

A

False

52
Q

Rp Mod:
Which statement is true of spermatogenesis?

All of the above

The process is continuous from day to day.

Four functional sperm are produced for each cell that undergoes meiosis.

The process takes place in the testes.

A

All of the above

53
Q

Rp mod:
For women, the hormone that promotes the release of an ovum from a mature follicle is:

estrogen
progesterone
FSH
LH

A

LH

54
Q

Rp Mod:
Prostatic cancer is the common reason men consult a urologist because it is the leading type of cancer in adult men.

True
Or
False

A

False

55
Q

Rp Mod:
For men, the function of FSH is to:

initiate sperm production
stimulate secretion of testosterone
neither A nor B
both A and B

A

initiate sperm production

56
Q

Rp Mod:
For men, the hormone LH:

stimulates secretion of testosterone
increases protein synthesis in skeletal muscles
initiates sperm production
all of these

A

stimulates the secretion of testosterone

57
Q

Rp Mod:
Contraceptive methods that rely on synthetic hormones

Both a and b

Prevent ovulation

Prevent the implantation of a fertilized egg in the uterus

Prevent the sperm and egg from meeting

All of the above are true

A

All of the above are true

58
Q

Rp Mod:
The male reproductive gland(s) that is above penis and contributes to ejaculation is (are) the:

prostate gland
bulbourethral glands
seminal vesicles
all of these

A

prostate gland

59
Q

Rp Mod:
Ovulation is produced due to a surge in

Estrogen and FSH concentrations
LH and FSH concentrations
Estrogen and LH concentrations
Estrogen concentrations
LH concentrations

A

Estrogen and LH concentrations

60
Q

RP Mod:
Which statement is NOT true of the male reproductive glands?

All of them produce alkaline secretions.

The bulbourethral glands empty into the prostate gland.

The prostate gland contributes to ejaculation.

The secretion of the seminal vesicles contains fructose.

A

The bulbourethral glands empty into the prostate gland.

61
Q

Rp Mod:
The middle part of the male urethra that extends from the prostate to the penis is called the:

membranous urethra
prostatic urethra
penile urethra
spongy urethra
bulbourethra

A

membranous urethra

62
Q

Rp Mod:
The sertoli cells of the testes produce testosterone.

True
Or
False

A

false

63
Q

RP Mod:
For women, the hormones estrogen and FSH are both necessary for the:

neither A nor B
both A and B
production of mature ova
growth of the endometrium

A

production of mature ova

Biology 100 (19 decks)

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