Worksheets6.6, 11.4, and 11.3
Total questions: 63
Worksheet time: 36mins
The cluster of capillaries within a nephron.
glomerulus
alveoli
aorta
vein
The organ that removes metabolic wastes including urea, excess water, and salts from the blood.
lung
liver
kidney
colon
The functional unit of the kidneys which includes the glomerulus, Bowman's capsule and the Loop of Henle.
arteriole
veinule
alveoli
nephron
A nitrogen waste resulting from the breakdown of the amino acids produced during protein digestion.
carbon dioxide
bile
urea
water
A) Urine passes through the ureters
B) Urea enters the kidneys
C) Urine enters the urethra
Which substance is NOT found in the liquid in the highlighted parts of a healthy person?
Glucose
Salt
Water
Urea
The area where all of the glucose is absorbed.
Loop of Henle
Proximal convoluted tubule
Distal convoluted tubule
Collecting tubule
The area of the nephron impermeable to water is the....
Descending limb of the L of H
Ascending limb of the L of H
Proximal tubule
Distal tubule
Choose the substances (more than 1) that will be found in larger quantities the renal artery.
glucose
urea
water
oxygen
carbon dioxide
ADH is released from the pituitary gland into the:
Circulatory system
Endocrine system
Nervous system
All of the above
When ADH is secreted, urine will:
Be more dilute
Be more concentrated
Have a larger volume
All of the above
Anti-diuretic hormone (ADH) affects the permeability of which section of the nephron tubules
Proximal (first) convoluted/coiled tubual
Loop of Henle
Distal (second) convoluted/coiled tubual
Collecting duct
If you are dehydrated (low water potential in the blood), the body must conserve water. To do so, the brain triggers the pituitary gland to ...
release MORE ADH, making the collecting duct MORE permeable
release LESS ADH, making the collecting duct LESS permeable
release MORE ADH, making the collecting duct LESS permeable
release LESS ADH, making the collecting duct MORE permeable
ADH causes specific protein channels to move into the membranes of certain cells in the nephron so that more water can be absorbed by osmosis. What are these called?
aquaporins
active transport
tight junctions
desmosomes
Melatonin is secreted by
The hypothalamus during the day
The liver during the winter
The pineal gland during the night
The pancreas during the day The pancreas during the day
Which response takes place when blood glucose levels are low?
Glucagon is released from the α cells of the pancreas
Glucagon is released from the β cells of the pancreas
Insulin is released from the α cells of the pancreas
Insulin is released from the β cells of the pancreas Insulin is released from the β cells of the pancreas
Which organ secretes FSH (follicle-stimulating hormone)?
ovary
testis
pituitary gland
placenta
Which hormone causes the corpus luteum to develop after ovulation & secrete progesterone?
FSH
Estrogen
LH
Oxytocin
Describe the levels of progesterone & FSH during the first few days of the menstrual cycle.
Progesterone remains and FSH are both low.
Progesterone is low, and FSH begins to increase.
Progesterone increases but FSH remains low.
Progesterone and FSH both increase. Progesterone and FSH both increase.
Analysis of a blood sample from someone who had not eaten for 24hours would be expected to have
high levels of glucagon
high levels of testosterone
high levels of insulin
high levels of glucose high levels of glucose
What is a difference between exocrine and endocrine glands?
Exocrine are larger than endocrine.
Exocrine secrete hormones to a surface & endocrine to blood.
Exocrine secrete hormones always& endocrine when stimulated.
Exocrine secrete peptides & endocrine steroids. Exocrine secrete peptides & endocrine steroids.
What hormone acts in the reabsorption of water in the kidneys?
ADH
TSH
FSH
TH
What do hormones secreted by the pituitary control?
I. Growth II. Reproduction III. Homeostasis
I only
II only
I and II only
I, II, & III
Which hormone is inhibited during pregnancy, to prevent contraction of the uterus?
Oxytocin
Progesterone
Estrogen
FSH
What is the role of HCG in early pregnancy?
HCG stimulates FSH secretions.
HCG stimulates the degeneration of the corpus luteum.
HCG stimulates ovarian estrogen and progesterone secretion.
HCG stimulates uterine contractions. HCG stimulates uterine contractions.
Why is progesterone important during pregnancy?
It develops the placenta.
It maintains the endometrium.
It acts on fertilization.
It inhibits implantation. It inhibits implantation.
Where do most secretions from endocrine glands flow to?
Blood
Skin
Digestive gut
Ducts
What name is given to mature sperm?
Spermatocyte
Spermatozoa
Spermatogonium
Spermatogonia
Spermatogenesis involves...
Mitosis only
Meiosis only
Mitosis followed by meiosis
How many secondary spermatocytes are produced after the first round of meiosis?
1
2
4
Which of the following is a correct sequence of cells in spermatogenesis?
spermatogonium -> secondary spermatocyte -> primary spermatocyte
primary spermatocyte -> spermatogonium -> secondary spermatocyte
spermatogonium -> primary spermatocyte -> secondary spermatocyte
none of the above
Complete oogenesis results in the formation of:
1 ovum; 3 polar bodies
1 secondary oocytes;2 polar bodies
1 ovum; 3 secondary oocytes
1 ovum; 1 polar body
Oogenesis is the process in the ovary that results in the
production of female gametes. Which statement about
oogenesis in humans is false?
Oogenesis begins before birth
The process of oogenesis is completed when the egg cell
is penetrated by sperm
Oogenesis continues throughout the life of individual
In oogenesis, unequal cytokinesis results in one single
large daughter cell, which goes on to form the egg
What are the products of oogenesis in correct order?
Oogonium →primary oocyte and first polar body → secondary oocyte and second polar body →ovum
Primary oocyte → oogonium and first polar body → secondary oocyte and second polar body →ovum
Oogonium → primary oocyte → secondary oocyte and first polar body →ovum and second polar body
Ovum →primary oocyte and first polar body → secondary oocyte and second polar body → oogonium
Figure shows the cell division occurs in ovary. Name the cell Z.
(a)
in oogenesis, Primary oocyte undergo meiosis I but arrested at (a) until puberty.
When does oogenesis begin?
at birth
before birth
at the onset of adulthood
at the onset of puberty
In human, how many chromosomes are found in a primary oocytes .
23
46
69
92
Primordial germ cell undergo mitosis rapidly to form
primary oocyte
secondary oocyte
Oogonium
Ovum
The diagram shows a section through the seminiferous tubules. What is the cell labelled X?
Spermatid that will differentiate into sperm
Primary spermatocyte that will undergo meiosis to form secondary spermatocytes
Sertoli cell that provides nutrients
Stem cell that will divide by mitosis to form spermatogonia
The image shows a light micrograph of tissue stained with a dye that binds to the nucleic acids in a cell. What is the major purpose of the tissue depicted in the image?
Absorption of digested food
Production of insulin
Spermatogenesis
Fertilization
The image shows a flow chart. Which sequence would correspond to the stages shown in the flow chart?
sexual intercourse--ovulation--pregnancy--maintenance of endometrium
disintegration of corpus luteum--pituitary gland activity-estrogen production-- ovulation
mitosis--growth--differentiation--pregnancy
implanted embryo--corpus luteum of ovary--progesterone production--maintenance of endometrium
Which interaction occurs between hormones in the reproductive systems of women?
Estrogen from the corpus luteum stimulates secretion of FSH.
Estrogen from the follicle stimulates secretion of LH at midcycle.
Progesterone stimulates secretion of LH after ovulation.
During birth, progesterone stimulates secretion of oxytocin.
The diagram shows the female reproductive system. Which structures do K and L identify?
K: endometrium L: uterine wall
K: placenta L: endometrium
K: amnion L: placenta
K: fetus L: uterine wall
The diagram shows the exchange processes that take place in the placenta between the maternal and fetal blood. Which process requires endocytosis?
A
B
C
D
What does the blastocyst secrete?
HCG
Estrogen
ADH
Progesterone
What helps to prevent polyspermy?
The unequal division of oocytes
The placental barrier
The contraceptive pill
The cortical reaction
Where does the acrosome reaction occur?
A
B
C
D
The image shows a section of a seminiferous tubule. What is shown by the letter X?
Meiosis I in a primary spermatocyte
A spermatogonium undergoing mitosis
Meiosis II in a secondary spermatocyte
A spermatid undergoing meiosis
Through what process does a spermatid become a functioning spermatozoan?
Mitosis
Differentiation
Fertilization
Meiosis
The image shows the male reproduction system. Where is prostate cancer likely to start developing?
In X only
In Y and Z only
In Z only
In X, Y and Z
What is the function of the epididymis in the male reproduction system?
To stimulate sperm production by secreting testosterone
To store the sperm in the final stages of maturation
To provide fluids to nourish the sperm
To transport the sperm from the testes to the urethra
From where is human chorionic gonadotropin (HCG) secreted in early pregnancy?
Embryo
Corpus luteum
Ovary
Pituitary gland
Which event takes place during normal fertilization?
The acrosome fuses with the egg membrane.
The entire sperm cell enters the egg cytoplasm.
The egg divides to form a blastocyst.
The cortical granules fuse with the egg membrane.
How is a zygote formed?
A sperm meets an egg inside the fallopian tube.
A sperm meets an egg inside the uterus of a female.
An egg meets a sperm inside the vagina of a female.
A sperm meets an egg inside the cervix of a female.
