Gametogenesis Flashcards

1
Q

What is the biological process called by which precursor cells form mature haploid gametes?

A

Gametogenesis is the biological process where diploid or haploid precursor cells undergo cell division and differentiation to form mature haploid gametes.

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2
Q

What is gametogenesis called in males?

A

Gametogenesis in males is called spermatogenesis.

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3
Q

What is gametogenesis called in females?

A

Gametogenesis in females is called oogenesis.

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4
Q

What is a gamete?

A

A gamete is a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually.

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5
Q

are the reproductive cells in males and females called?

A

In males, the reproductive cells are called spermatozoa, and in females, they are called ovum.

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6
Q

What happens when two gametes unite?

A

When two gametes unite, they form a zygote.

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7
Q

What is another term used to refer to gametes?

A

Gametes are also referred to as sex cells.

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8
Q

What are somatic cells, and what role do they play in the body?

A

Somatic cells, also known as body cells, are cells that form the tissues and organs of the body. They do not participate in the production of gametes (reproductive cells).

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9
Q

What term is used to describe the collective presence of somatic cells in the body?

A

The collective presence of somatic cells in the body is referred to as the somatoplasma.

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10
Q

What are gametes, and what are they also known as?

A

Gametes are reproductive cells also known as germ cells.

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11
Q

What is the term used to describe both gametes and primordial sex cells together?

A

Both gametes and primordial sex cells together are referred to as the Germ Plasma.

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12
Q

What are isogamous organisms and how do they reproduce?

A

Isogamous organisms produce only one type of gamete. These identical gametes pair up to form zygotes. Examples include fungi and protozoa.

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13
Q

What distinguishes heterogamous organisms from isogamous organisms?

A

Heterogamous organisms produce two different types of gametes: spermatozoa in males and ova or eggs in females. This contrasts with isogamous organisms, which produce only one type of gamete.

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14
Q

Provide examples of isogamous organisms and heterogamous organisms.

A

Examples of isogamous organisms are fungi and protozoa. Examples of heterogamous organisms are higher plants and animals.

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15
Q

What is the function of a gonad in an organism?

A

A gonad, also known as a sex gland or reproductive gland, is responsible for producing gametes (reproductive cells) and sex hormones in an organism.

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16
Q

What are the reproductive cells produced by female and male gonads?

A

Female gonads produce egg cells, while male gonads produce sperm cells.

17
Q

What is the male gonad called, and what does it produce?

A

The male gonad is called the testicle, and it produces sperm in the form of spermatozoa.

18
Q

What is the female gonad called, and what does it produce?

A

The female gonad is called the ovary, and it produces egg cells.

19
Q

What is the precursor cell for sperm cell development, and when does spermatogenesis begin?

A

The precursor cell for sperm cell development is the spermatogonium, and spermatogenesis begins after sexual maturity.

20
Q

What is the precursor cell for egg cell development, and when does oogenesis begin?

A

The precursor cell for egg cell development is the oogonium, and oogenesis starts at birth.

21
Q

How does the duration of spermatogenesis differ from oogenesis?

A

Spermatogenesis is a lifetime process that continues throughout a male’s life. In contrast, oogenesis is fixed at birth and ends when all potential egg cells have matured.

22
Q

What is the end product of spermatogenesis and how many sperm cells are produced from one precursor cell?

A

The end product of spermatogenesis is four sperm cells from one spermatogonium.

23
Q

What is the end product of oogenesis, and how many egg cells are produced from one precursor cell?

A

The end product of oogenesis is one ovum from one oocyte.