BIOLOGY CH. 41

69 cards

BIO CH. 41.


 
  
Created Nov 16, 2011
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mm2158

 

 
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1
Primate with non-pendulus scrotum
 
Gibbon
2
Produce sperm
 
Testes
3
Where sperm is stored
 
Epididymis
4
Conduct sperm from the testes to the urethra
 
Vas deferens
5
Secretes fructose to give sperm energy to move
 
Seminal Vesicle
6
Secretes buffer for sperm to survive in acidic vagina
 
prostate gland
7
Primary sexual organ where genes are packaged into gametes
 
Gonads
8
Secretes mucus
 
Bulbourethral gland
9
2nd leading cause of death in American Men
 
Prostate Cancer
10
Ways to detect prostate cancer
 
Digital rectal exam
Blood tests for prostate specific antigen; a tumor maker.
11
Almost 200,000 cases per year
30,000 resulting in death
 
Testicular Cancer
12
Testicular Cancer can be detected by
 
self-examination of testes feeling for hardening or lumps
13
ability to make sperm
 
Spermatogenesis
14
divides by mitosis to form primary spermatocyte.
 
Spermatogonium
15
produces haploid spermatids
 
Meiosis
16
mature to become sperm.
 
Spermatids
17
-line inside the seminiferous tubules
-Nourish the developing sperm
 
Steroli cells
18
-lie between the seminiferous tubules
-secrete testosterone
 
Interstitial cells
19
The fertile period for a human female occurs on a cyclic basis.
 
Menstrual Cycle
20
Cycle lasts ____ days

 
28
21
days 1-5; 6-13
 
Follicular phase
22
day 14
 
Ovulation
23
days 15-28
 
Luteal phase
24
First period
(usually between ages 11-14)
 
Menarche
25
Last period
 
Menopause
26
-Follicle grows and matures
-LH surge -> Ovulation
-Corpus luteum forms
 
Ovarian Cycle
27
Male Hormonal Cycle
 
LOOK IT UP

28
Female Hormonal Cycle
 
LOOK IT UP
29
process in which a strand of DNA is used as a template for the manufacture of a strand of...
 
transcription
30
process in which the information encoded in a strand of mRNA is used to construct a protein?...
 
translation
31
process in which pre-mRNA is edited into mRNA?
 
RNA processing
32
Polypeptides are assembled from
 
amino acids
33
RNA processing converts the RNA transcript into
 
mRNA
34
In eukaryotic cells the first step in protein synthesis is the
 
transferring of information from DNA to messenger RNA
35
What is the primary job of DNA?
 
It provides blueprints for proteins.
36
What is another name for RNA synthesis?
 
transcription
37
The sequence of nitrogen-containing bases on one strand of DNA most directly determines the...
 
amino acids in a protein molecule.
38
The "one-gene, one-enzyme" hypothesis concluded that
 
each allele codes for a single type of protein.
39
Which of the following is found in RNA but NOT in DNA?
 
uracil
40
The process of copying genetic information from DNA to RNA is called:
 
transcription.
41
Which of the following molecules transfers information from the nucleus to the cytoplasm?...
 
mRNA
42
How can RNA be distinguished from DNA?
 
RNA has one polynucleotide strand per molecule.
43
correctly illustrates the pairing of DNA and RNA nucleotides?
 
GTTACG CAAUGC
44
Transcription is the process of:
 
synthesizing an RNA molecule using a DNA template.
45
What ovarian hormones are involved in the menstrual cycle?
 
estrogen and progesterone
46
What happens to the human egg if it is not fertilized?
 
The corpus luteum disintegrates, hormone levels fall, the overgrown endometrium disintegrates,...
47
oogenesis
 
egg production in the human ovaries
48
The purpose of the epididymis
 
storage of sperm
49
What hormone is released in both sexes by the hypothalamus to initiate puberty?
 
gonadotropin-releasing hormone
50
Sperm become capable of movement while in the
 
epididymis
51
Which pituitary secretion stimulates sperm production?
 
FSH follicule stimulating hormone
52
Which pituitary secretion stimulates the testes to secrete androgens?
 
LH
Luteinizing hormone
53
Sperm develop in the
 
seminiferous tubules
54
A fertilized egg usually implants itself and develops in the
 
uterus
55
A rapid increase in the _____ level stimulates ovulation.
 
luteinizing hormone
56
eggs from a female developing into offspring without being fertilized
 
parthenogenesis
57
What ovarian hormones are involved in the menstrual cycle?
 
estrogen and progesterone
58
the most common bacterial STD?
 
chlamydia
59
Puberty is triggered when brain maturation causes the hypothalamus to secrete
 
gonadotropin-releasing hormone (GnRH).
60
The development of secondary sexual characteristics is due to
 
increased levels of estrogen or testosterone
61
In men, as testosterone levels increase, LH levels:
 
decrease
62
stimulates the release of FSH and LH.
 
Gonadotropin-releasing hormone (GnRH)
63
What is the function of an acrosome?
 
It contains enzymes that dissolve the protective layers around the egg.
64
In the male, the primary target of FSH is
 
Sertoli cells.
65
stimulates the production of testosterone?
 
LH
66
Mature sperm are stored in the
 
epididymis
67
The epididymis connects the
 
testis and the vas deferens
68
path sperm travel on their way out of the male
 
seminiferous tubules → epididymis → vas deferens → urethra
69
If the prostate gland failed to add its contribution to semen
 
the semen would not be fluid, due to lack of enzymes


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