2478024
Frage 1
Frage
By the oogenesis 4 mature oocytes occur from one oogonia.
Antworten
- True
- False
Frage 2
Frage
Oogenesis is fully completed after the fertilization of the secondary oocyte.
Antworten
- True
- False
Frage 3
Frage
By the spermatogenesis 1 mature spermatozoon occurs from on spermatogonia
Antworten
- True
- False
Frage 4
Frage
The axis (axonema) of the spermatozoon flagellum is built of microtubules following the 9x3+0 formula.
Antworten
- True
- False
Frage 5
Frage
The human spermatozoon head looks like "flame of candle" in shape.
Antworten
- True
- False
Frage 6
Frage
The mitochondria are arranged in spiral fashion around the middle piece of the spermatozoon flagellum
Antworten
- True
- False
Frage 7
Frage
The spermatogenesis starts during the
Antworten
-
Embryonic period
-
Fetal period
-
Right after the birth
-
Puberty
Frage 8
Frage
The spermatozoon acrosome represents:
Antworten
-
Cistern of the smooth-surfaced endoplasmic reticulum
-
Secretory granule
-
Cistern of the Golgi complex (zone)
-
Lysosome
Frage 9
Frage
The oogenesis starts during the:
Antworten
-
Embryonic period
-
Fetal period
-
Right after the birth
-
Puberty
Frage 10
Frage
The marker enzyme of the human spermatozoon acrosome is:
Antworten
-
Hyaluronidase
-
Alkaline phosphatase
-
Acid phosphatase
-
Lipase
Frage 11
Frage
Which of the following organelles is not present in the ovum (mature oocyte):
Antworten
-
Golgi apparatus
-
Mitochondria
-
Cenrtioles (cytocentre)
-
Lysosomes
Frage 12
Frage
Body of Balbiani (corpus Balbiani) is present in the:
Antworten
-
Oogonia
-
Spermatogonia
-
Primary oocyte
-
Primary spermatocyte
Frage 13
Frage
The human spermatogenetic cycle occupys about:
Antworten
-
22 days
-
72 days
-
52 days
-
10 days
Frage 14
Frage
The diameter of the human ovum is:
Antworten
-
5 µm
-
120 µm
-
20 µm
-
220 µm
Frage 15
Frage
The spermatozoon length is:
Antworten
-
60 µm
-
10 µm
-
5 µm
-
30 µm
Frage 16
Frage
The oogenesis is completed:
Antworten
-
Before the fertilization
-
Before the fertilization
-
After the puberty
-
After the fertilization
Frage 17
Frage
Which of the following are specific for the acrosome:
Antworten
-
Membrane organelle
-
Derived from the Golgi complex (zone)
-
Biochemical analogous to the lysosomes
-
Contains glocogen
-
Is built in the primary oocyte
Frage 18
Frage
Which of the following are specific for the spermatogenesis:
Antworten
-
Starts during the embryonic period
-
Starts with the onset of puberty
-
Passes through three phases
-
Passes through four phases
Frage 19
Frage
Which of the following are specific for the secondary spermatocytes:
Antworten
-
Haploid number of chromosomes
-
The biggest in size male germ cells
-
Are formed during the second phase of spermatogenesis (phase of cell growth)
-
Are formed during the first phase of spermatogenesis (phase of cell multiplication)
Frage 20
Frage
The spermatozoon head contains:
Antworten
-
Nucleus
-
Mitochondria
-
Centrioles
-
Acrosome
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