Bio Quiz 2

Topics: Reproductive system, Menstrual cycle, Corpus luteum Pages: 5 (450 words) Published: November 16, 2014
Question 1
1 out of 1 points

The corpus luteum
Answer

Selected Answer:
   
secretes progesterone
Correct Answer:
   
secretes progesterone

Question 2
1 out of 1 points

In the testes, testosterone is produced by the _______ cells Answer

Selected Answer:
   
Leydig
Correct Answer:
   
Leydig

Question 3
1 out of 1 points

Sex steroids are _______ molecules derived from _______.
 
Answer

Selected Answer:
   
lipid; cholesterol  
Correct Answer:
   
lipid; cholesterol  

Question 4
1 out of 1 points

Which of the following is essentially an exclusive female hormone? Answer

Selected Answer:
   
Progesterone
Correct Answer:
   
Progesterone

Question 5
1 out of 1 points

Ovulation occurs
Answer

Selected Answer:
   
about 14 days before the menstrual phase begins  
Correct Answer:
   
about 14 days before the menstrual phase begins  

Question 6
1 out of 1 points

In women, the main source of estradiol is the
Answer

Selected Answer:
   
ovarian follicles
Correct Answer:
   
ovarian follicles

Question 7
1 out of 1 points

Peptides and proteins are
Answer

Selected Answer:
   
 gene products
Correct Answer:
   
 gene products

Question 8
1 out of 1 points

The gonadotropins LH and FSH are released from the  
Answer

Selected Answer:
   
anterior pituitary  
Correct Answer:
   
anterior pituitary  

Question 9
1 out of 1 points

Which of the following is the typical order of phases of the menstrual cycle?   Answer

Selected Answer:
   
Menstrual; follicular; luteal
Correct Answer:
   
Menstrual; follicular; luteal

Question 10
1 out of 1 points

In men and women, testosterone is secreted by the gonads and the Answer

Selected Answer:
   
adrenal glands
Correct Answer:
   
adrenal glands

Question 11
1 out of 1 points

The acrosome reaction occurs when sperm reach the _______ that surrounds the ovum Answer

Selected Answer:
   
zona pellucida
Correct Answer:
   
zona pellucida

Question 12
1 out of 1 points

The conceptus remains in the oviduct for about _______ day(s) after ovulation Answer

Selected Answer:
   
3
Correct Answer:
   
3

Question 13
1 out of 1 points

The _______ gives rise to the skin and nervous system
Answer

Selected Answer:
   
ectoderm
Correct Answer:
   
ectoderm

Question 14
1 out of 1 points

In male fetuses, the conversion of testosterone to _______ is required for the normal development of the external genitalia Answer

Selected Answer:
   
DHT  
Correct Answer:
   
DHT  

Question 15
1 out of 1 points

_______ is an intersex condition caused by a genetic defect in corticosteroid synthesis Answer

Selected Answer:
   
CAH
Correct Answer:
   
CAH

Question 16
1 out of 1 points

_______ converts testosterone to the more potent androgen, DHT Answer

Selected Answer:
   
 5 α -reductase
Correct Answer:
   
 5 α -reductase

Question 17
1 out of 1 points

Gonadotropin secretion is triggered by an increase in secretion of _______ by the _______. Answer

Selected Answer:
  
GnRH.; hypothalamus
Correct Answer:
  
GnRH.; hypothalamus

Question 18
1 out of 1 points

The timing of puberty correlates better with _______ than with _______. Answer

Selected Answer:
   
body weight; chronological age  
Correct Answer:
   
body weight; chronological age  

Question 19
1 out of 1 points

A gene called _______, located on the X chromosome, is important for development of the ovaries. Answer

Selected Answer:
   
DAX-1
Correct Answer:
   
DAX-1...
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