Science Review Flashcards
- What do you call when matter changes from liquid to solid?
freezing
. Changing matter from gas to liquid.
condensation
Changing matter from solid to gas
sublimation
Changing matter from solid to liquid
melting (fusion)
It is the smallest part of the property of a substance.
molecule
The study of the patterns of the movement of gases is called what?
aerodynamics
It is the number of protons in the nucleus of an atom
atomic number
What is the most abundant noble gas?
argon
. It is the substance that capable of destroying bacteria.
antibiotic
A BTU is the quantity of heat required to raise the temperature of one pound of water one degree on what temperature scale?
Fahrenheit
What is measured by the SI units Bar?
pressure
What is measure by the SI units Curie?
Activity of radionuclide
What is measured by barn?
Area
What is measured by calories?
Energy
This gem stone is the softest of all precious stones. What is this green stone that is composed of mineral beryl?
Emerald
The atomic number of a chemical element refers to the number of what found in a nucleus of an atom?
Protons
What is the chemical symbol of lead?
Pb
What is the common name of sodium chloride?
table salt
What common compound that has a symbol of H2O?
water
What compound is CO2?
carbon dioxide
What gas is used as a disinfectant in drinking water?
Chlorine
What is the fermented juice of apples better known as?
cider
What kind of waste is capable of being slowly destroyed and broken down into very small parts by natural processes?
biodegradable
It is the action or process of making land, water, air dirty and not safe or suitable to use.
pollution
It is collecting, processing and manufacturing materials instead of throwing them away.
Recycling
It is a waste material that are recycled as fertilizer
compost
It is the ability of a material to absorb water
Porosity
The ability or capability of a material to dissolve another material.
solubility
The dissolved substance in a solution.
solute
The dissolving substance in a solution
solvent
It is a system that enables human being to reproduce another human.
Reproductive system
It is a process that makes possible the continuance of life on Earth.
reproduction
A male reproductive organ where it produces sperms and the hormone testosterone.
testes
A tube that circle the bladder and the excretory duct of testes.
vas deferens
It is a sac-like pouch that supports the testes in place.
scrotum
It is a sac that serves as the receptacle of the urine.
bladder
. A gland that produces sperms with a fluid that enables them to move.
seminal vesicle
It is the mixture of the sperm and fluid.
semen
The tube that carries urine out from the body and also serves as an opening of the sperm.
urethra
The male reproductive organ
penis
It is a single cell with a head and a tail.
sperm
It is found at the top of each testis and where the sperms are stored.
epididymis
It provide fluids that lubricate the duct system and nourish the sperm.
prostate gland
What human stage on time of development when a person become physically able to reproduce.
Puberty
It is a sex glands located in the pelvis, they produce the ova and the sex cells of the female.
ovary
Where does fertilization takes place?
fallopian tube
What do you call when an egg or ovum from an ovary is released about once a month?
ovulation
It is the finger-like extension of the fallopian tube that drive the fertilized egg to the uterus.
fimbriae
It is a hollow, avocado-shaped muscular organ with thick walls where a fertilized egg develops.
uterus
It is called the birth canal because when a baby is to be born, it is where it passes.
vagina
It is the neck of the uterus.
cervix
It is the union of the sperm and egg cell.
fertilization
What do you call the fertilized egg?
zygote
What do you call the period of time when the zygote undergoes development for nine months in the uterus and until the birth of the baby?
pregnancy
It refers to an unborn child during the first two months of pregnancy.
embryo
. What do you call the protective membrane that surrounds the embryo?
amniotic sac
It is a clear fluid filled in the amniotic sac that protects the embryo against harm and keeps the embryo moist.
amniotic cord
What cord connects the embryo to the placenta?
umbilical cord
Nutrients and oxygen pass from the mother to the embryo through the __________.
placenta
In what week of the pregnancy when the embryo develops tiny arm and legs with fingers and toes?
6th-7th weeks
What do you call the embryo after the two months of pregnancy and the body organ are now present?
fetus
It is a series of changes during which an egg matures and the uterus is prepared for possible pregnancy
menstrual cycle
It happens when the uterine lining begins to break down and the blood with some uterine tissue and unfertilized egg make their way out through the vagina.
menstruation flow
How many hours a sperm can survived?
24-48 hours
It refers to the lining of the uterus that becomes thicker in preparation for implantation of the fertilized egg.
endometrium
It is the female gonad where the egg is produced.
ovary
How many chromosomes are in the nucleus of a human sperm?
23 chromosomes
Sex determination of a child is done by whose chromosome?
Father
It is the male gametes.
Testicles
A walnut sized glands located between the bladder and the penis, it secretes fluid that nourishes and protects sperm.
prostate
The female gametes is ___.
ovaries
The system that helps a person breathe in oxygen and breathe out carbon dioxide.
respiratory system
Where does the exchange of oxygen and carbon dioxide happens in human body?
alveoli
It is the opening in our nose where air enters.
nostrils
It is where the air gets moistened and warmed as it enters in the nostrils.
Nasal Cavity
It is a tiny hair-like structure that traps the air against impurities.
cilia
A tube-like passage for both food and air that found between the nasal cavity and esophagus.
pharynx
It is a flap of tissue found at the end of the pharynx that closes over the larynx when we swallow.
epiglottis
It is where the vocal chords attached that produce sounds when we speak.
larynx
An organ below the larynx which is a 12cm long tube and made up of C-shaped rings of cartilage.
trachea
Branch of trachea that carry air into the lungs.
bronchi
It is a cluster of tiny thin-walled sacs found at the end of each bronchioles.
alveoli
Substance that produced by the lining of the nasal cavity
mucus
Tiny hair-like structure that trap the bacteria in the trachea
mucous membrane and cilia
The flow of air to the lungs
nostrils-nasal cavity-pharynx-trachea-bronchus- bronchiole- alveoli
What do you call the division of the lungs?
lobes
It is a thin membrane that surrounds the lungs.
pleura
Bones that protect the lungs
rib cage
How many pairs of rib cage that protect the lungs?
12 pairs
A dome-shaped muscle that works with the lungs to allow breathing in and breathing out.
diaphragm
What is the first apparatus used for breathing underwater?
diving bell
What is the first safe underwater breathing device?
aqualung
A disease in which the alveoli in the lungs lose their ability to expand and contract.
emphysema
A disease in which too much mucus is produce in the bronchial tubes.
chronic bronchitis
It is an ailment caused by a virus on which there is swelling of the mucus membrane of the respiratory passages.
colds
Swelling of the lungs that caused by a virus and bacteria
Pneumonia
A communicable disease caused by the bacteria a mycobacterium tuberculosis.
pulmonary tuberculosis
How many receptors in your nose?
atleast 10 million
What is behind your nose and connects with the back of the throat?
Nasal Cavity
What moves back and forth to move the mucus out of the sinuses and the back of the nose?
Cilia
This icky stuff, also known as boogers, helps capture dust, germs and small particles.
Mucus
These are sensitive to odor molecules and help the brain recognize smells?
receptors
It is made out of thin pieces of bone that separates the nasal passages.
Septum
What do you call the two holes in the nose?
Nostrils
What part of the human anatomy that known as “voice box”?
larynx
Where in the human body do alveoli found?
lungs
It is a system of excretory organs that rids blood of wastes, excess water and excess salt.
Urinary System
Two bean-shaped organs that filter blood to produce waste liquid called urine.
kidneys
Where does blood enters going to the kidney?
renal artery
Where does blood pass as it leaves the kidney?
renal vein
It is a tiny filtering unit of the kidney that rids blood of waste liquid called urine.
nephron
It holds the urine until it leaves the body.
bladder
It carries urine to the outside of the body.
urethra
It connects the kidney to the urinary bladder.
ureters
It helps a defective kidney filter the blood.
dialysis
. What is the main excretory organ?
kidney
Where does the filtration of blood in the kidney take place?
Bowman’s capsule
It is a waste product excreted through the urinary system.
Urine
Cystitis is the infection of
Urinary bladder
What tube connects the kidney to the bladder?
Ureter
The process of breaking up and dissolving the food so that it ca be taken into the blood to be used by the body.
digestion
Where does digestion begin?
mouth
It is a digestive juice which is secreted by the three pairs of salivary glands that empty into the mouth.
saliva
It is the front teeth with sharp edges for biting and cutting the food.
Incisors
It is the pointed teeth which grip and tear the food.
Canines
The teeth that crushed and grind the food
Premolars
It is the flat teeth used for chewing the food.
Molars
It is a is a long muscular tube that connects the pharynx to the throat to the stomach.
Esophagus
A rhythmically movement that contracts to move the food through the digestive system.
Peristalsis
It is a large J-shaped organ at the end of the esophagus, on the left side of the body
Stomach
It is a muscle found at the end of the stomach that closes and opens to allow the flow of from the esophagus to the stomach.
Sphincter muscle
It is the long coiled connected from the stomach.
Small intestine
There are three parts of the Small Intestine:
- Duodenum – the upper 20 cm. connected to the stomach
- Jejunum – is about 2.5 meters long.
- Ileum – is the longest half coiled through the abdominal cavity
- The last 20 or 30 centimeters of the colon are called rectum.
The softened food is rolled into a ball called the _____________ and is pushed by the tongue into the throat.
bolus
How long is an adult’s small intestine?
22 feet
Where does bile made/ production of bile?
Liver
Your food can spend up to this long in the small intestine.
4 hours
The large intestine measures about ___.
5 feet long
What are the last four teeth a person will get?
Wisdom teeth
What kind of teeth do babies have?
Primary
What makes up the roots of your teeth and attaches to your jawbone?
Cementum
What innermost part of the tooth does the dentin protect?
pulp
What hard, tough and shiny substances cover the crown?
Enamel
What is the part of the tooth you can see above the gum?
crown
What tiny hairs send messages to the brain that help identify tastes?
Microvilli
How many taste buds does a man has when he was born?
10 thousand
The back section of the tongue that is part of the immune system.
Lingual tonsil
This is the thin membrane that connects your tongue to the bottom of your mouth.
Frenulum
What substance in the mouth that helps break down food?
Saliva
_____ contains taste buds.
Papillae
It is the bumps on the top of the tongue.
Papillae
What organ in the digestive system that is responsible for Vitamin B and K absorption?
Large intestine
Where do excess fat soluble vitamins typically accumulated?
Liver
What enzyme contains in saliva which acts on starches and changes them into sugar?
ptyalin
What is the strong muscle that helps the teeth in digestion?
tongue
How many permanent teeth does an adult have?
32
It is the passageway of food from the pharynx.
esophagus
It is the passage of air in the pharynx.
windpipe
It is a squeezing movement of muscles which help the food moves from the esophagus towards the stomach.
peristalsis
What lined in the walls of the small intestines that separate the food nutrients ready to be absorbed by the walls from the foods that is not yet ready.
villi
It is the undigested food that becomes a soft solid.
feces
The lowest end of the large intestine and when feces pass out of the body.
Rectum
What is the largest gland in the body that produces a bile.
liver
It breaks the fats into tiny droplets.
bile
Where does bile stored?
gall bladder
The organ that produces juice that digest sugars, starches, proteins, fats and insulin
Pancreas
It is produced by the pancreas that helps control the use of sugar by the body.
Insulin
What is the hardest material in the body?
enamel