Repro - prelab, worksheet, review, chart

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Unformatted text preview: Reproduction
and
Development
Pre‐lab.

Due
at
the
start
of
lab.

(Pages
207­218)
 
 Name

 
 
 
 
 

GSI
&
Sect
#

 
 
 
 
 
Station
#
 
 
 AT
THE
END
OF
EACH
LAB
IS
A
REVIEW
AND
A
CHART
THAT
YOU
SHOULD
FILL
OUT.
 
 1.

What
is
a
jelly
coat?

What
is
the
function
of
a
jelly
coat?

What
is
a
fertilization
membrane?

When
and
how
 does
it
form?
 
 
 
 
 
 2.

Is
an
urchin
a
protostome?

Are
you
a
protostome?
 
 
 
 3.

List
the
(defined)
stages
of
development
that
occur
from
fertilization
to
the
neurula
stage.
{in
Xenopus}
 
 
 
 
 4.

Distinguish
between
blastocoel
and
blastopore.
 
 
 
 
 5.

Name
the
class
of
chordates
that
includes
chickens?
Rats?

(If
necessary,
look
at
the
vertebrate
diversity
lab).
 
 
 
 
 
 6.

Is
a
rat
a
deuterostome
or
a
protostome?

Does
a
rat
undergo
an
estrous
cycle
or
a
menstrual
cycle?
 
 
 
 
 7.

For
a
rat,
trace
the
movement
of
sperm
from
the
seminiferous
tubules
out
the
urethra.
 
 
 
 
 
 
 
 8.

From
where
is
the
“egg”
released
during
ovulation
in
a
rat?

in
a
human?

Do
they
have
the
same
ploidy?
 
 
 
 
 
 9.

Which
signals
promote
egg
release
from
a
sea
urchin?

Is
fertilization
external
or
internal?
 
 A69
–
Fall
2009
 Vertebrate
Reproduction
Notes
 
 
 
 
 
 
 
 
 A70
–
Fall
2009
 Reproduction and Development Worksheet. Name

 
 
 
 
 

GSI
&
Sect
#

 
 
 
 Due at the end of lab. 
 
Station
#
 
 AT THE END OF EACH LAB IS A REVIEW AND A CHART THAT YOU SHOULD FILL OUT. 1) In the space below make a drawing of the rat testis and rat ovary slide. Label the following: seminiferous tubule, lumen of the seminiferous tubule, spermatozoa, mature follicle, developing follicle, antrum. 2) In the space below make 3 drawings: i) unfertilized urchin egg ii) fertilized urchin egg (with fertilization membrane) iii) sea urchin larva. 3) Examine both the vials and slides of the developmental stages of Xenopus and make drawings of each. Title your drawings. Vials: Egg 2 Cell Blastula Gastrula Neurula Slides: Ovum Late cleavage Crescent blastopore neural tube Worksheet continued on the other side A71
–
Fall
2009
 4) Draw a rat fetus from a late stage of pregnancy. Be sure to label: amniotic membrane, placenta and the umbilical cord. 5) Draw a cross section of a chick embryo., i.e. the slide examined on page 212. Label the notochord & spinal cord. A72
–
Fall
2009
 
 
 REVIEW
SHEET
REPRODUCTION
AND
DEVELOPMENT
 1)

Compare
external
and
internal
fertilization.
 2)

Distinguish
between
spiral
(protostomes)
and
radial
cleavage
(deuterostomes).


 3)

List
the
stages
of
development
of
a
frog
egg
and
describe
features
of
each
of
these
stages.


 4)

Identify
various
structures
within
the
larval
frog.

Nervous
system,
circulatory
system,
and
digestive
system.


 5)

Compare
the
larval
and
adult
stages
of
Xenopus.

What
are
the
advantages
to
this
form
of
metamorphosis?
 6)

Which
structures
were
you
able
to
identify
in
the
chicken
embryo?
 7)

Very
briefly
describe
the
membranes
surrounding
the
developing
embryo.

 8)

Be
able
to
identify
the
notochord,
and
spinal
cord
in
a
cross
section.


 9)

Identify
seminiferous
tubules,
spermatogenic
cells,
spermatozoa,
interstitial
cells,
epididymis
and
vas
 deferens.
 10)

Identify
the
ovaries,
oviduct,
uterus,
vagina,
primary
follicle,
growing
follicle,
mature
follicles,
ovum,
and
 corpus
luteum.
 
 For
questions
9
&
10
it
might
be
helpful
to
include
drawings
on
this
page.
 
 
 
 
 Rat:
 Oogenesis:
Primary
follicle
>
mature
follicle
>
ruptures
>
oocyte
released
>
corpus
luteum
remains.
 
 Spermatogenesis:
Spermatogenic
cells
in
seminiferous
tubules,
interstitial
cells
secrete
testosterone
>
 epididymis
>
vas
deferens
>
urethra
.
 
 
 
 
 
 
 
 
 
 
 
 Internal
Features:
(visible
after
dissecting
the
rat).
 Female
Reproductive
System Ovaries Uterus Vagina Male
Reproductive
System Scrotum Testes Epididymis Vas
deferens Seminal
vesicle Penis Spermatogenesis Seminiferous
tubules Spermatogenic
cells Interstitial
cells
secrete
testosterone A73
–
Fall
2009
 VERTEBRATE
REPRODUCTION
QUESTIONS/SUMMARY
 
 
 1.

For
the
following
organisms
think
about
some
of
the
main
developmental
stages/processes
listed
below.

You
 may
not
have
covered
each
stage
or
process
in
each
organism,
therefore,
pay
particular
attention
to
how
this
 material
has
been
presented
in
lab
or
lecture.
 
 
 Fertilization


Blastula

Gastrulation


Gastrula


Neurulation

Neurula
 
 a)
 Drosophila
(development
lectures)
 b)
 Sea
urchins
(fertilization
and
early
cleavage
in
lab)
 c)
 Xenopus
 d)
 Chickens
 e)
 Rats
 
 
 2.

What
sort
of
gradients
might
play
a
role
in
the
regulation
of
development?
 
 
 
 
 
 
 
 
 
 
 
 
 3.

List
three
differences
between
protostomes
and
deuterostomes.
 
 Protostomes Deuterostomes 1 )
 
 2 )
 
 
 3 )
 
 
 
 
 A74
–
Fall
2009
 ...
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