Section 14.1 Biology (30) Quiz
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Quiz based on section 14.1 in McGraww Hill Textbook. Useful for studying for your Biology 30 diploma course.
- 1.
The ________ are the organs that produce reproductive cells: sperm in males and eggs in females.
Explanation
The gonads are testis (in males) and ovaries (in females).Rate this question:
- 2.
______ hormones are the chemical compounds that control the development and function of the reproductive system.
Explanation
Sex hormones are produced by the gonads, for example testosterone is produced by the testes by the interstitial cells.Rate this question:
- 3.
The structures that are not directly related to reproductive function are called what?
- A.
Primary sex characteristics
- B.
Secondary sex characteristics
- C.
Tertiary sex characteristics
- D.
Non reproductive sex characteristics
Correct Answer
B. Secondary sex characteristicsExplanation
The structures that are not directly related to reproductive function are called secondary sex characteristics. These are physical features that develop during puberty under the influence of sex hormones but are not directly involved in reproduction itself. Examples include breast development in females and facial hair growth in males.Rate this question:
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- 4.
Female gametes are called ova/ovum.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Female gametes can also be referred to as eggs.Rate this question:
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- 5.
Primary sex characteristic of a female include more rounded shoulders, wider hips, and a deeper voice.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given statement is false. Primary sex characteristics of a female include the presence of ovaries, fallopian tubes, uterus, and vagina, which are internal reproductive organs. The external characteristics, such as rounded shoulders, wider hips, and a deeper voice, are considered secondary sex characteristics. These characteristics develop during puberty due to hormonal changes and are not directly related to the reproductive organs.Rate this question:
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- 6.
Which of the following is NOT a function of the Sertoli cells in the male reproductive system?
- A.
Nourishment of developing sperm cells
- B.
Secretion of testosterone
- C.
Formation of the blood-testis barrier
- D.
Phagocytosis of residual cytoplasm from developing sperm cells
Correct Answer
B. Secretion of testosteroneExplanation
While Sertoli cells are crucial for sperm development, they do not secrete testosterone. This is the primary function of the Leydig cells, also known as interstitial cells, which are located in the connective tissue between the seminiferous tubules within the testes. The Sertoli cells are responsible for providing nutrients and protection to the developing sperm, forming the blood-testis barrier, and phagocytosing the residual cytoplasm shed by the sperm during maturation.Rate this question:
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- 7.
Developing sperm are nourished by Sertoli cells, where are Sertoli cells located?
- A.
Ductus deferens
- B.
Ejaculatory duct
- C.
Seminal vesicles
- D.
Seminiferous tubules
Correct Answer
D. Seminiferous tubulesExplanation
Sertoli cells are located within the seminiferous tubules of the testes. These cells play a crucial role in spermatogenesis, the process of sperm development. They provide structural support, nourishment, and protection to the developing sperm cells, ensuring their proper maturation. Sources and related contentRate this question:
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- 8.
From each testis, sperm are transported to the _________ where the sperm mature and become motile.
Correct Answer
epididymisExplanation
Sperm are transported from each testis to the epididymis, where they undergo maturation and become motile. The epididymis is a coiled tube located behind each testis, serving as a storage and maturation site for sperm. It provides an optimal environment for sperm to gain the ability to swim and fertilize an egg. This process takes place over several weeks as the sperm pass through the epididymis, acquiring the necessary motility and ability to survive in the female reproductive tract.Rate this question:
- 9.
Sperm move out of the epididymis through the urinary bladder.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Sperm move out of the epididymis through the ductus deferens.Rate this question:
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- 10.
The female gonads are called _______.
Correct Answer
ovaries
ovaryExplanation
The correct answer is ovaries. The female gonads are called ovaries. They are responsible for producing eggs, as well as the hormones estrogen and progesterone. The term "ovary" refers to a single female gonad, while "ovaries" is the plural form, referring to both gonads.Rate this question:
- 11.
The ovaries contain specialized cell structures called ________, a single ovum developes here and each month a single one matures and then ruptures, releasing the ovum into the oviduct.
Correct Answer
follicles
follicleExplanation
In the follicles the above process is called ovulation.Rate this question:
- 12.
Most of the structures of the female reproductive system are located outside the body.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Most of the structures are located inside the body, for example uterus, ovaries, oviduct, and the fimbrae are all located inside the body.Rate this question:
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- 13.
Thread-like projections called ______ continually sweep over the ovary.
- A.
Fimbrae
- B.
Follicles
- C.
Fallopian tubes
- D.
Flagellum
Correct Answer
A. FimbraeExplanation
The term fimbrae comes from a Latin word that means "threads" or "fringes".Rate this question:
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- 14.
When an ovum is released, it is swept into a cilia-lined tube about 10cm long called a(n) what?
- A.
Uterus
- B.
Oviduct
- C.
Cervix
- D.
Follicle
Correct Answer
B. OviductExplanation
The two oviducts are commonly referred to as Fallopian tubes.Rate this question:
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- 15.
An egg is much smaller than a sperm.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The ovum is approximately 0.1 mm in diameter which is over 20 times larger than the head of a sperm.Rate this question:
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- 16.
The ________ is a muscular organ that holds and nourishes a developing fetus.
Correct Answer
uterusExplanation
The uterus is normally about the size and shape of a pear but can expand to many times its size as the fetus develops.Rate this question:
- 17.
The lining of the uterus is called the __________.
- A.
Cervix
- B.
Endometrium
- C.
Vagina
- D.
Fallopian Tube
Correct Answer
B. EndometriumExplanation
The endometrium is richly supplied with blood vessels to provide nutrients for the fetus.Rate this question:
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- 18.
The cervix connects to the vagina.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
At its base the uterus forms a narrow opening called the cervix.Rate this question:
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- 19.
The ovum survives in the oviduct for up to how many hours after ovulation?
- A.
1
- B.
2
- C.
12
- D.
24
Correct Answer
D. 24Explanation
If a living sperm encounters the egg in the oviduct, fertilization may take place.Rate this question:
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- 20.
A fertilized egg still in side the oviduct is called a fetus.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The fertilized egg becomes a fetus after it has been implanted in the endometrium for approximately eight weeks.Rate this question:
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- 21.
If after ovulation the egg is not fertilized, the endometrium disintegrates and its tissues and blood flow out the vagina in a process known as ____________.
Correct Answer
menstruationExplanation
The endometrium lines the uterus which can also be referred to as the "womb".Rate this question:
- 22.
The vagina opens into the female external genital organs known together as the vulva.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The vulva includes the labia majora and labia minora.Rate this question:
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- 23.
Both eggs (ova) as well as sperm are motile.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The egg is not motile, the have no structures to propel themselves, the beating cilia in the oviduct create a current that moves the ovum toward the uterus.Rate this question:
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