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Science Final S.G.
Question | Answer |
---|---|
Digestion begins in the | mouth |
Saliva also contains | amylase |
Amylase breaks down starch into | sugar |
Lugol's solution is used for | starch |
Bennidict's solution is used for | sugar |
The epiglottis is | the flap that covers the windpipe while swallowing |
The esophagus is | a tube that's the passage for foos to the stomach |
A ring of muscle that controls the passage of food between organs is called | sphincter |
Gastric juice contains | pepsin and HCI which digests proteins |
Mucus | coats the stomach to prevent ucler formation |
Gall Bladder | stores bile which breaks down fats |
Bile is produced by the | liver |
Pancreas | secretes enzymes |
Small Intestine | receives the secretions from gall bladder and pancreas |
The nutrients are | obsorbed into the bloodstream |
Villi | are small folds of small intestine |
Large Intestine | absorbs water and minerals into the body |
Peristalsis | is the contractions of smooth muscles in the digestive tract |
Swallowing too much air causes | a burp |
The main sourse of fuel/energy for the body is | glucose |
Nose | filters and warms air and sneds olfactory signals to the brain |
The passage of air into lungs is called | windpipe/trachea |
Ont op of the trachea is the | larynx/voice box |
Tranchea branch into | bronchi that branch into bronchioles |
Alveoli | air sacs in lungs |
Pleural Membranes surrounds | lungs thare filed with liquid/fluid |
Diaphragm | muscle that controls your ventilation/breathing |
When your diaphragm gets out of since it causes a | hiccup |
Bromthymol Blue is a | indicator that turns yellow in the presence of carbon dioxide |
Air left in lungs after you exhale is called | residual volume |
The amount of air you can exhale is called | vital capacity |
The total amout of air in your lungs is called | total lung capacity |
Your total lung capacity can hold up to | 6 liters |
Veins | carry blood to the heart |
Arteries | carry blood away from the heart |
Capillaries are | thin vessels that exchange carbon dioxide with the body |
Aorta is the | largest vessel |
The heart has | 4 valves and 4 chambers (2 atria and 2 ventricles that pump at the same time) |
The septum | separates the left and right side of the heart |
Red blood cells | carry oxygen |
White blood cells | fight diseases |
Plamsa | is the liquid part of blood |
Lymphatic vessels | collects fluid that leaks from clogged arteries |
A joint is where | 2 or more bones meet |
A cartilage | is like a cushion |
Ligaments | are like rubber bands |
A hinge joint is like | a door |
A ball and socket joint | can turn all around |
A pivot joint | one bone rotates around another |
A plane joint | is like a gliding motion |
A saddle joint | is like a vertical joint |
Bones are moved by | occurring in opposing pairs |
Extensors | straightens joints |
Flexors | bends a joint |
Muscles are attached by | tendons |
About how much percent of bones are replaced each year? | 10% |
At the center of most bones are | bone marrows |
Bone marrows forms | red blood cells and are places for fat storage |
A cadiac muscle is in the | heart |
A smooth muscle is in | internal organs |
Skeletal muscles | are in varius sizes and has variety of strengths |
Force is measured in | newtons |
Calories are | energy gained from food |
If a cell needs energy it'll go under | cellular respiration |
Cellular respiration takes place in | mitochondrias |
Diffusion | goes with the flow |
Active transport | goes against the flow |
The lungs and small intestine have folds that | increase surface areas |
Homeostasis refers to | regulation of the body |
An independent variable | is changed |
A dependent variable | changes as a result of the variable |
Controlled variables | are constants |
A control group | is an unchanged group |
Uncontrolled variables | can change accidentally to cause error |