Bio 1Al Reproduction And Development

Front 1

The cleavage pattern of protostomes is

Back 1

spiral

Front 2

The cleavage pattern of deuterostomes is

Back 2

radial

Front 3

Protostomes have a ________ type of development, in which the fate of embryonic cells is determined very early.

Back 3

determinate

Front 4

The coelom and three germ layers are formed during

Back 4

gastrulation.

Front 5

In protostomes, the blastopore becomes the

Back 5

mouth.

Front 6

In deuterostomes, the blastopore forms the

Back 6

anus.

Front 7

The coelom in protostomes is formed by

Back 7

solid masses of mesodermal cells splitting for form the coelom.

Front 8

The coelom in deuterostomes is formed by

Back 8

an outpocketing of the archenteron.

Front 9

Where are spermatogenic cells located?

Back 9

Seminiferous tubules

Front 10

As spermatogenic cells become more mature, they are pushed towards the ______ of the seminiferous tubles.

Back 10

lumen

Front 11

Spermatid

Back 11

Immature sperm that lacks a flagella. Found in the lumen of the seminiferous tubule.

Front 12

The reproductive cycle of a female rat is called an

Back 12

estrous cycle. Haploid ova are released during ovulation.

Front 13

A mature follicle can be identified by the presence of

Back 13

an antrum

Front 14

The clear space inside the follicle (other than the antrum) is

Back 14

the zona pellucida

Front 15

Order and name of cells outside the zona pellucida

Back 15

granulosa cells are immediately outside the zona pellucida, and theca cells are outside of that

Front 16

Theca cells convert estrogen to testosterone and are analagous to

Back 16

leydig cells

Front 17

What hormones are secreted by the corpus luteum?

Back 17

Estrogen and Progesterone

Front 18

The outside of the sea urchin egg is covered by the

Back 18

jelly coat. Prevents desiccation.

Front 19

What does the fast block to polyspermy consist of?

Back 19

Depolarization of the egg cell from a negative to positive membrane potential.

Front 20

What is the slow block to polyspermy?

Back 20

Fusion of cortical vesicles, release of vesicular contents into the perivitelline space. Enzymatic hardening of the vitelline membrane. Vitelline membrane becomes the fertilization membrane.

Front 21

What color are the animal and vegetal poles?

Back 21

Animal pole is darker

Vegetal pole is white and contains the yolk (heavier)

Front 22

Cleavage in which the cleavage plane extends entirely through the zygote.

Back 22

Holoblastic

Front 23

Cleavage plane does not extend entirely through the zygote

Back 23

Meroblastic

Front 24

Stage characterized by the formation fo the blastocoel

Back 24

Blastula

Front 25

Stage identifiable by the yolk plug. Formation of three germ layers.

Back 25

Gastrula

Front 26

Notochord and neural tube are formed during this stage.

Back 26

Neurula

Front 27

The outermost membrane of a chicken egg, aside from the egg shell membrane is

Back 27

the chorion

Front 28

What color are the animal and vegetal poles?

Back 28

Animal pole is darker

Vegetal pole is white and contains the yolk (heavier)

Front 29

Cleavage in which the cleavage plane extends entirely through the zygote.

Back 29

Holoblastic

Front 30

Cleavage plane does not extend entirely through the zygote

Back 30

Meroblastic

Front 31

Stage characterized by the formation fo the blastocoel

Back 31

Blastula

Front 32

Stage identifiable by the yolk plug. Formation of three germ layers.

Back 32

Gastrula

Front 33

The egg white (distal from the embryo) is called

Back 33

Albumen, encased by the egg shell memebrane

Front 34

Which chicken egg membrane is responsible for storing nitrogenout wastes

Back 34

the Allantois

Front 35

The yolk sac in the chicken egg is _____ the chorion and attached to _________ of the embryo.

Back 35

inside; the midgut

Front 36

The chicken embryo is immediately surrounded by the

Back 36

amniotic membrane