বিষয়সমূহ

PrepBank · বিষয়ভিত্তিক প্রশ্ন

Sperm

মোট প্রশ্নএই পাতাপ্রতি পাতা১০০
ঘনত্ব
উত্তর
উত্তরিতবর্তমানপুনরায় দেখুনঅসম্পূর্ণ

Sperm

PrepBank · পাতা / · /

.
Sertoli cells do not secret
  1. Testosterone
  2. Inhibin
  3. Estrogen
  4. Androgen-binding protein (ABP)
ব্যাখ্যা
Sertoli cells
1.       Inhibin
2.       Androgen-binding protein (ABP)
3.       Mullerian inhibiting substance (MIS)
4.       Estrogen
.
Sertoli cell doesnt secrete
  1. Mullerian inhibiting substance (MIS)
  2. inhibin
  3. androgen-binding protein (ABP)
  4. androgens
.
sperm
  1. GLUT 2
  2. GLUT 5
  3. SGLT 1
  4. GLUT3
ব্যাখ্যা
GLUT 5
Fructose transport
Jejunum, sperm, intesti
.
Which of the following functions of the Sertoli cells mediates negative feedback control of follicle-stimulating hormone (FSH) secretion?
  1. ক) Synthesis of inhibin
  2. খ) Synthesis of testosterone
  3. গ) Aromatization of testosterone
  4. ঘ) Maintenance of the blood–testes barrier
ব্যাখ্যা
Inhibin is produced by the Sertoli cells of the testes when they are stimulated by follicle-stimulating hormone (FSH). Inhibin then inhibits further secretion of FSH by negative feedback on the anterior pituitary. The Leydig cells synthesize testosterone. Testosterone is aromatized in the ovaries.
.
The two testes of the human adult form up to -
  1. ক) 110 million sperm each day
  2. খ) 120 million sperm each day
  3. গ) 130 million sperm each day
  4. ঘ) 140 million sperm each day
ব্যাখ্যা
The two testes of the human adult form up to 120 million sperm each day.
.
Movement of sperm is facilitated by:
  1. Microvilli
  2. Cillia
  3. Flagellum
  4. Fructose