Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
A&P- Lab Exam 3
| Question | Answer |
|---|---|
| Methyl Orange is a (an) ________ indicator. | Acidic |
| Brom Thymol Blue is a (an) _________ indicator. | Acidic |
| Phenolphthalein is a (an) __________ indicator. | Basic |
| Lemon juice, vinegar, and coke are all ________. | Acidic |
| As you get more acidic, you are increasing the concentration of what? | Hydrogen; more hydrogen than water |
| As you get more basic, you are increasing the concentration of what? | OH-; less hydrogen than water |
| Acid: | substance that donates H+ to a solution |
| Base: | anything that accepts H+ |
| There is a ___ fold difference between adjacent values. | 10 |
| As the values go up, the pH concentration goes _____, and vice versa. | Down |
| Buffers: | regulate pH by neutralizing acids and bases |
| Acids are _______ ________. | Proton donors |
| Bases are ________ __________. | Proton acceptors |
| Phosphate buffer system: (what does it do) | - Primary role in regulating intracellular and urine pH. - In acidic solutions, it binds H+ ions and removes them from fluids - Alkaline condions, releases free H+ into fluids |
| Protein buffer system: | - Amino acids can accept or donate H+ - Acidic conditions, amino group binds H+ ions - Alkaline solutions, carboxyl group of amino acids release H+ ions |
| Hemoglobin buffer system: | - regulates pH in response to fluctuating PCO2 in plasma -Hb binds the H+ |
| Carbonic acid bicarbonate buffer system: | - regulates pH in response to metabolic acids in ECF |
| What happens to the thoracic cavity volume as the diaphragm moves downward (contracts)? | The volume is increasing, the pressure is decreasing. |
| What happen to the thoracic cavity volume as the diaphragm moves upwards (relaxes)? | The volume decreases, so the pressure increases. |
| What is phenol red? | pH indicator that turns yellow in acidic solutions |
| Why is the time shorter to turn the solution yellow after exercise? | after exercise, more CO2 is produced. |
| What is a spirometer? | tool to measure respiratory volumes |
| Equation for vital capacity: | VC=TV + IRV + ERV |
| Tidal volume: | normal/resting quiet breathing |
| Expiratory reserve volume: | how much extra you breath out to lower pressure |
| Inspiratory reserve volume: | amount of extra air that can be inhaled beyond normal |
| Vital capacity: | max amount of air exhaled after max inhalation |
| Respiratory Minute Volume (RMV) equation: | RMV=RR (respiratory rate) x V (tidal volume) |
| Lugol's IKI is an indicator for what? | Polysaccarides; starch |
| Benedicts is an indicator for what? | Monosaccarides; glucose |
| Bieurets turns purple in the presence of what? | Proteins; peptides |
| The substrate Polysaccarides (starch) is associated with what exzyme and what will their product be? | enzyme: amylase product: disaccarides and trisaccharides |
| The substrate Trigliceride (lipids) is associated with what ezyme and what will their product be? | enzyme: lipase product: free fatty acids and monosaccarides |
| The substrate Polypeptides (proteins) is associated with what enzyme and what will their product be? | enzyme: pepsin (on form) or pepsinogen (off form) product: short peptides and amino acids |
| What do enzymes do? | 1. increase rate of reaction 2. lower activation energy |
| What conditions effect enzymes? | temp, pH, salt concentration, and chemicals |
| When do enzymes function optimally and what would happen if it was at a higher temp? | 37C or 98.7F; function best at body temp - higher temps would denature them |
| Catabolic reaction: | breakdown of substances |
| Anabolic reaction: | Growth/building of substances |
| Litmus cream color change indicates what? | pH change due to fatty acids from lipids |
| What are facors to look for when preforming a urinalysis? | appearance, odor, pH, microscopic observations (include casts, cells,crystals) |
| The only cells that should be seen in urine are what? | Epithelial cells |
| What does a 37C water bath do to enzymes? | Increases the rate molecular movement; increases the number of encounters of substrate and enzyme |
| Hydrolysis | Breaking bonds of molecules using water |
| What is the pH of water? | 7.0, neutral |
| What is the pH of the human body? | 7.35-7.45 |
| What are casts in urine? | cylindrical molds formed in renal tubular lamina; formed by proteins and agglutination of cells within renal tubules |
| What are crystals in urine? | enormous compounds found in normal urinary sediment |
Created by:
madelineyork
Popular Anatomy sets