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Biology 2 > Lecture 24-Reproductive System > Flashcards

Lecture 24-Reproductive System Flashcards

0
Q

Generation of new individuals without the fusion of egg and sperm (Examples: fission, budding, parthenogenesis).

A

Asexual reproduction

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1
Q

Reproduction is the process of producing __________ from __________.

A

Offspring, parents

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2
Q

Fusion of haploid gametes forming a diploid cell, called the zygote.

A

Sexual reproduction

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3
Q

Diploid cell formed through sexual reproduction.

A

Zygote

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4
Q

Advantages to sexual reproduction:

A

Creation of genetic variation, recombination, and DNA repair

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5
Q

Disadvantages to sexual reproduction:

A

Only one sex can bear young, males and females must search each other out, only half of the genes are passed on

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6
Q

Gametes are __________ reproductive cells.

A

Haploid

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7
Q

Produced by male. Small, motile, hundreds of millions produced each day.

A

Sperm

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8
Q

Produced by female. Large, nonmotile, one produced each month (500 per lifetime).

A

Egg

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9
Q

Spiders have __________, which is the modification of the appendages (basically a spider penis).

A

Pedipalp

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10
Q

Ducks have this, which travels through the convoluted female reproductive tract.

A

Corkscrew penis

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11
Q

Snakes have a:

A

Hemipenis

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12
Q

Most mammals have __________, which is a bone inside the penis. Humans don’t have this.

A

Baculum

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13
Q

Site for egg production.

A

Ovaries

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14
Q

Aka Fallopian tube.

A

Oviduct

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15
Q

Thick, muscular organ (womb).

A

Uterus

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16
Q

Inner lining of the uterus.

A

Endometrium

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17
Q

Male gonads consisting of many highly coiled tubes.

A

Testes

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18
Q

Site for sperm maturation.

A

Epididymis

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19
Q

Muscular duct

A

Vas deferens

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20
Q

Produces mucus, fructose, coagulating enzyme, ascorbic acids, and prostaglandins.

A

Seminal vesicle

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21
Q

Produces,anticoagulant enzymes and citrate.

A

Prostate gland

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22
Q

__________ in females are homologous to testes in males.

23
Q

__________ in females is homologous to penis in males.

24
Production of male gametes.
Spermatogenesis
25
Sperm production in males is continuous from __________ to ___________.
Puberty to death
26
How many sperm in each ejaculate?
About 160 million
27
Under the right conditions, sperms can survive about _____ days in a female.
5
28
Testes produce sperm in highly coiled tubules called:
Seminiferous tubules
29
Production of female gametes.
Oogenesis
30
Immature eggs form in the ovary of the __________ __________, but do not complete until __________ __________.
Female embryo, sexual maturation
31
Ploidy of primary spermatocyte:
2n
32
Ploidy of secondary spermatocyte:
N
33
In embryo: (ploidy stages)
Primordial germ cell (2n)-----> Oogonia (2n)-----> Primary oocyte (2n)
34
At liberty, completion of meiosis I to result in __________ __________.
Secondary oocyte
35
The development of a secondary oocyte is arrested at __________ of __________.
Metaphase, meiosis II
36
After fertilization, completion of meiosis II results in:
A fertilized egg
37
In spermatogenesis, all _____ products of meiosis develop into gametes.
4
38
In spermatogenesis, mitotic division occurs throughout __________ and __________.
Adolescence, adulthood
39
Mature sperm is produced from __________ __________ without interruption.
Precursor cell
40
In oogenesis, __________ __________ results in a single gamete.
Unequal meiosis
41
In oogenesis, mitotic division is completed before:
Birth
42
In females, gametogenesis ceases at about age:
50
43
Mature eggs are produced from precursor cells with:
Long interruptions
44
Master gland the produces many hormones.
Anterior pituitary gland
45
Gonadotropin-Releasing Hormone (GnRH) is produced in the:
Hypothalamus
46
Luteinizing Hormone (LH) is produced in the:
Anterior pituitary glands
47
Follicle-Stimulating Hormone (FSH) is produced in the:
Anterior pituitary gland
48
Testosterone is produced in the:
Testes
49
_____ and _____ are required for normal spermatogenesis.
FSH and LH
50
FSH promotes activity of:
Sertoli cells
51
LH regulates:
Leydig cells
52
In the __________ ___________ follicles mature, ovulation, corpus luteum degenerates.
Ovarian cycle
53
In the __________ __________ there are changes in the uterus (thickening and shedding of endometrium)(28 day cycle).
Uterine cycle
54
Key hormones in the female reproductive cycle are:
GnRH, LH, FSH, estradiol, and progesterone
55
Gametes are produced by:
Meiosis

Biology 2 (32 decks)

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