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PERIODICAL EXAM DAY 2 > SCIENCE SET 1 > Flashcards

SCIENCE SET 1 Flashcards

Identification and Understanding (60 cards)

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1
Q

Used for urination and sexual intercourse

A

Penis

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2
Q

Holds the testes in place

A

Scrotum

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3
Q

It produces the fluid secretion that support and nourish sperm

A

Prostate Gland

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4
Q

It produce sperm and testosterone which is the male sex hormone

A

Testes (or testicles)

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5
Q

This is a tube that extends from the bladder to the external opening at the end of the penis.

A

Urethra

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6
Q

It carries both urine and sperm but NOT AT THE SAME TIME.

A

Urethra

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7
Q

It makes a sugar-rich fluid (fructose) that provides sperm with a source of energy and helps with the sperms ability to move.

A

Seminal Vesicles

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8
Q

The muscular tube leading from the external genitals to the cervix of the uterus in women.

A

Vagina

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9
Q

The lowest part of the uterus.

A

Cervix

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10
Q

It is hollow, pear-shaped organ that holds a fetus during pregnancy

A

Uterus

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11
Q

It produces eggs (ova) and hormones such as estrogen and progesterone. The ovaries take turns in releasing the egg cells.

A

Ovaries

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12
Q

Fertilization of human egg by sperms takes place

A

Oviduct or Fallopian Tube

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13
Q

It is the hollow organ in the female reproductive system that holds a fetus during pregnancy.

A

Uterus

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14
Q

It is the shedding of the inner lining of the uterus with the basal layer remaining intact.

A

Menstruation

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15
Q

It happened when the egg is not fertilized by the sperm.

A

Menstruation

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16
Q

It is the series of changes during which an egg matures, and the uterus is prepared for possible pregnancy.

A

Menstrual Cycle

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17
Q

The correct sequence of menstrual cycle

A

Menstrual –» Follicular –» Ovulation –» Luteal

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18
Q

It releases FSH (follicle stimulating hormone) and LH (luteinizing hormone).

A

Pituitary

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19
Q

In males, LH stimulates testosterone release by what cells?

A

It is release by Leydig Cells of the testes.

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20
Q

In females, LH stimulates steroid from the ovaries, ovulation, and the release of progesterone after ovulation by _______>

A

Corpus Luteum

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21
Q

In ______, FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries.

A

Woman

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22
Q

It control the menstrual cycle and stimulates the growth of eggs in the ovaries in woman.

A

FSH (follicle stimulating hormone)

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23
Q

FSH levels in woman change throughout the menstrual cycle, with the highest levels happening just before an egg is release by the ovary known as ___________.

A

Ovulation

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24
Q

Ovulation occur after about how many days?

A

14 Days

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25
This period is the most hospitable environment for sperm passage.
Ovulation
26
It release the progesterone and estrogen.
Ovaries
27
Its main function is to prepare endometrium for a fertilized egg to implant and grow.
Progesterone
28
It is the lining of the uterus
Endometrium
29
It thickens the endometrium, stimulates the pituitary gland to release LH causing ovulation and stops FSH being produced so that only one egg matures in a cycle.
Estrogen
30
It includes the presence of menstrual blood, nausea, lower abdominal cramps, bread tenderness, and moodiness.
Period Symptoms
31
It is a practice to prevent pregnancy by not giving semen the opportunity to enter the vagina.
Abstinence
32
It refers to maintaining a near-constant internal environment. 
Homeostasis
33
It leads to a stable homeostatic system.
Negative Feedback
34
It is a process in which the end products of an action case more of that action occur in a feedback loop.
Positive Feedback
35
They are secreted by endocrine gland circulated in the blood.
Hormones
36
Shivering thermogenesis, sweating, flattening of skin hair and redistribution of blood flow to the periphery are the thing we can do to _____________.
To restore a high body temperature
37
Give at least four examples of positive feedback mechanism
Childbirth Lactation Ovulation More production of platelets
38
DNA contains of what sugar?
Deoxyribose sugar
39
RNA contains of what sugar?
Ribose Sugar
40
The following are components of a DNA molecule, EXCEPT; a. Ribose b. Phosphate c. Base d. Deoxyribose
a. Ribose
41
This carries the information from the DNA to the Ribosomes.
mRNA
42
This translates the genetic message through protein synthesis.
tRNA
43
It forms ribosomes along with proteins
rRNA
44
What are the nitrogenous bases of DNA?
Cytosine -->> Guanine, Thymine --->> Adenine
45
What are the nitrogenous bases of RNA?
Cytosine -->> Guanine, Uracil -->> Adenine
46
It provides a template for gene coding during protein synthesis
mRNA
47
It carries the amino acids to the ribosomes, which has to be added to the polypeptide chain
tRNA
48
How many strand DNA has?
Double strand
49
How many strand RNA has?
Single strand
50
Where can you find DNA?
Found only in nucleus
51
Where can you find RNA?
RNA can be found in nucleus, cytoplasm, and some part of ribosome.
52
It is a nucleic acid used is various body functions that uses Uracil instead of thymine to save energy to manufacture.
RNA
53
The central Dogma
DNA -->> RNA -->> Protein
54
It results in the production of mRNA by using DNA as a template and occurs only in the nucleus.
Transcription
55
It is the process of decoding the information in mRNA, leading to the synthesis of polypeptide chains or protein
Translation
56
The change in the sequence of DNA
Mutation
57
Type of mutation that are situations where a single nucleotide is changed into another.
Substitution
58
Type of mutation in which extra bases pairs are inserted into a new place in the DNA
Insertions
59
Type of mutation in which a section of DNA is lost, or deleted.
Deletion
60
A stop codon
UAA UAG UGA

PERIODICAL EXAM DAY 2 (4 decks)

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