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PJ's Biology > Homeostatisch Mechanisms, Hormones, and Reproduction > Flashcards

Homeostatisch Mechanisms, Hormones, and Reproduction Flashcards

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1
Q

Homeostasis

A

When Conditions (Temperature, pH, water balance, sugar levels, etc) of an organism are within acceptable ranges.

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2
Q

Homeostasis is Achieved by the…

A

Autonomic Nervous Systems…Sympathetic and Parasympathetic nervous systems by a process called Feedback Control. (For example causing you to sweat when you are hot)

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3
Q

Feedback Response

A

The production of some counter force that ensures Homeostasis

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4
Q

Gametogenesis

A

Gamet formation

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5
Q

Zygote

A

Egg cell + Sperm cell

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6
Q

Spermatogenesis

A

Sperm formation

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7
Q

Primary Spermatocytes

A

Formed from Spermatogonia. The diploid cell that performed meioses to make secondary spermatocytes

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8
Q

Secondary Spermatocytes

A

2 duplicated haploid chromosome cells.

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9
Q

Spermatids

A

Secondary spermatocytes after meiosis II

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10
Q

Spermatids develop to become

A

Sperm Cells

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11
Q

Oogenesis

A

The process of egg cell creation. It also produces 3 Polar Bodys

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12
Q

Primary Oocytes

A

The beginning of an egg cell that is put through meiosis I to create secondary Oocyte

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13
Q

Secondary Oocyte

A

One of the two cells formed from meiosis I preforming on primary Oocytes. The other is the polar body

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14
Q

Polar Bodies

A

Useless small cells made in Oogenesis

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15
Q

Egg Cell

A

Produced when meioses is preformed on a Secondary Oocyte

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16
Q

Cleavage

A

Zygote Cell divisions

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17
Q

Morula

A

A cluster of the first few cells formed from the Zygote

18
Q

Blastula

A

Hollow sphere shape. 2cd step in zygote maturation

19
Q

Gastrula

A

Gastrulation makes a two-layered, cup shape

20
Q

Ectoderm

A

Outer layer of gastrula tube which will form into endocrine glands and nervous system

21
Q

Gastrula tube

A

Formed after Gastrula

22
Q

Endoderm

A

Precursor of gut lining and accessory structures

23
Q

Mesoderm

A

Forms muscles and organs and skeletal, circulatory, respiratory, Reproductive, and excretory systems

24
Q

Germ Layers

A

The three layers (Ectoderm, Endoderm, Mesoderm)

25
Q

Extraembyronic Membranes

A

Membranes that are not a part of the embryo itself that are formed by Germ Layers

26
Q

Chorion

A

Outermost membrane surrounding the embryo. Regulates the passage of gases and water from the embryo to its surrounding environment

27
Q

In egg-laying vertebrates, the Chorion lies in contact with the …

A

Innermost surface of the shell

28
Q

Uterus

A

Organ that holds embryo

29
Q

Amnion

A

Amniotic fluid-filled sac enclosing the embryo

30
Q

Amniotic Fluid

A

Cushions embryo, helps keep temperatures constant, and keeps amnionic membrane from sticking to the developing embryo

31
Q

Allantois

A

Arises from the developing digestive tract and becomes part of the Umbilical Cord. Contains blood vessels which function to exchange gases and nutrients between embryo and mother,

32
Q

In egg-laying reptiles, the Allantois is a reservoir for…

A

Wastes

33
Q

The Allantois fuses with the Chorion forming the…

A

Chorioallantoic Membrane

34
Q

Chorioallantoic Membran

A

Regulates gas exchanges through the shell

35
Q

Yolk Sac Membrane

A

Outer membrane that is close to the uterus. Formed from developing digestive tract and becomes part of umbilical cord

36
Q

Yolk Sac

A

Inside of Yolk Sac Membrane. Stores nutrients for use by the embryo.

37
Q

Placenta

A

Outer cells of the embryo and inner cells of the uterus combine to form it. It is the site of transfer for nutrients, water, and wastes between their blood vessels.

38
Q

Hormones

A

Chemicals produced in the endocrine glands which travel through the circulatory system to specific targeted organs where they modify metabolic activities.

39
Q

A hormone is manufactured in response to a particular…

A

Stimulus

40
Q

Steroid

A

Sometimes a Type of hormone

PJ's Biology (19 decks)

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