144 Which of the following cells are diploid a. secondary oocytes b. secondary s

Question

144 Which of the following cells are diploid a. secondary oocytes b. secondary spermatocytes e. primary spermatocytes d. Spermatids Uncontrolled mitosis An exaggerated stress response High levels of catecholamines (norepinephrine and epinephrine) a. b. c. d. All of the above 146 After a vasectomy, males Cannot produce semen Cannot carry out spermatogenesis Stop producing testosterone a. b. c. d. Are infertile e All of the above Which of the following is NOT true of the posterior pituitary eland? a. It stores hormones produced in the hypothalamus b. It receives hormones produced in the hypothalamus from capillaries making 147 up part of the hypophyseal portal system c. Release of hormones is controlled by the hypothalamus d. It is anatomically and physiologically distinct from the anterior pituitary gland 148 A hysterectomy results in Slow or absent oogenesis Constantly high levels of FSH and LH Lack of follicular development Lack of ovulation Lack of menstruation a. b. c. d. e. Which of the following is NOT a tropic hormone a. ACTH b. FSH c. Growth hormone d. TSH e. GnRH 149 150 Libido is directly associated with a. b. c. d. e. Androgens from the adrenal cortex Levels of oxytocin and stress High blood sodium levels Hormones from the posterior pituitary gland Low blood calcium levels

Explanation / Answer

Primary spermatocytes and primary oocuyte are diploid .whereas secondary spematocytes,secondary oocyte and spermatid are haploid.

So option C.

2.phechromocytoma is the benign tumor of adrenal gland that leads to increase in level of catechoalamine secretion..so it is not associated with uncontolled mitoais and exagerated stree response.so option C

3.vasectomy is the bilateral ligation of vas deferens.it is relatively safevand convenient method .it prevent transfer of sperm.so option D

4.pposterior pituiary gland composed of pituiacytes .pituicytes donnot secretes hormones.theyvare simply a supporting structurefor large number of terminal nerve fibre and terminal nerve endings from nerve tract originates in the supraoptic and paraventricularvl nuclei in the hypothalamus .these tract pass to the nerurihyoophysis through pituitary stalk .the nerve nding are bulbous knob that contain many secretory granulesthe endings lie on surface of capillaries.

Hypophaseal portal system is for control of ant.pituiatary .

So option B

5hysteroctomyvis removal of uterus .so there is lcak of menstruation .fsh and lh profuce in ant.pituitary.follicular deveolpement and ovum production occur in ovary.

So option E.

6.ALL are tropic hormone produce in anterior pituiatary .gonadotropic releasing hormone is produced in hypothalamus and it is a releasing hormone.so option E

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