Lab Miscellaneous Flashcards
(17 cards)
An electrolyte is a substance that produces (BLANK) when dissolved in water meaning it can conduct an electric current when dissolved in water.
A) Glucose
B) Salt
C) Ions
D) Sugars
C) Ions
Explanation: Electrolytes produce charged ions when dissolved in water, and these ions enable the solution to conduct electricity. Glucose and sugars do not ionize in water.
A substance must contain freely mobile charged (BLANK) in order to conduct electricity.
A) Particles (species)
B) Salts
C) Sugars
D) Glucose atoms
A) Particles (species)
Explanation: To conduct electricity, a solution must contain charged species (like ions) that are free to move. These mobile charged particles carry the electrical current through the liquid.
- Most ionic compounds are (BLANK) electrolytes.
A) Weak
B) Strong
C) Not
B) Strong
Explanation: Most ionic compounds like NaCl completely dissociate into ions in water, making them strong electrolytes that conduct electricity efficiently.
Acetic acid contains (BLANK) bonds.
A) Hydrogen
B) Ionic
C) Covalent
C) Covalent
Explanation: Acetic acid is a molecular compound with covalent bonds between atoms. It can ionize in water, but the atoms within each molecule are bonded covalently.
On its own, hydrochloric acid has no formally charged particles.
A) True
B) False
A) True
Explanation: In its pure form, HCl is a neutral covalent molecule with no formal charges. It only forms charged ions when dissolved in water, becoming a strong acid (electrolyte).
Ethanol is a strong electrolyte.
A) True
B) False
B) False
Explanation: Ethanol is a nonelectrolyte. It dissolves in water but does not dissociate into ions, so it cannot conduct electricity.
What is the daily recommended amount of water per person according to this video?
A) 2 liters
B) 1 liter
C) 1.5 liters
D) 0.5 liters
C) 1.5 liters
Explanation: The video recommends drinking 1.5 liters (about 8 glasses) of water a day to keep urine diluted and prevent bladder irritation.
You should drink more fizzy drinks.
A) True
B) False
B) False
Explanation: Fizzy drinks can irritate the bladder and increase urinary frequency, especially if they contain caffeine or artificial sweeteners. The video recommends decreasing fizzy drink intake.
You should strain when using the toilet.
A) True
B) False
B) False
Explanation: Straining weakens the pelvic floor muscles, which can lead to bladder leakage and other complications. The video recommends avoiding straining by maintaining a fiber-rich diet and staying hydrated.
When you need to urinate, then go right away.
A) True
B) False
B) False
Explanation: Going to the toilet too frequently, especially without a full bladder, can train your bladder to signal urgency at low volumes. It’s healthier to go only when the bladder is fully full.
Take a walk, it’s really good for you. :)
A) True
B) False
A) True
Explanation: Walking helps reduce fluid buildup in the legs, supports circulation, and aids in pelvic health. The video suggests walking or even chair aerobics to improve overall bladder function and fluid reabsorption.
(BLANK) is a state in which oxygen is not available in sufficient amounts at the tissue level to maintain adequate homeostasis.
A) Hytoxia
B) Hyperxia
C) Hypoxia
D) Hypermoxia
C) Hypoxia
Explanation: Hypoxia refers to a condition where tissues do not receive enough oxygen to sustain normal physiological processes and maintain homeostasis.
When there is less oxygen in the air, your body will produce more (BLANK) to compensate for this reduction.
A) White blood cells
B) Red blood cells
C) Chloroplasts
D) Ribosomes
B) Red blood cells
Explanation: To compensate for reduced oxygen, the body produces more red blood cells, which are responsible for transporting oxygen from the lungs to tissues.
What does the “?” represent?
A) The Reality threshold
B) The Imaginary threshold
C) The Reality barrier
D) The Imaginary barrier
A) The Reality threshold
Explanation: The image shows a slider between “REAL” and “IMAGINARY,” suggesting a continuum of perception or cognition. The “?” is positioned at the boundary where something transitions from imaginary to real (or vice versa), making “The Reality threshold” the most accurate term—it represents the point where imagined concepts might start to feel or be interpreted as real.
Mitochondria are the ATP powerhouse of the cell and do not assist much in the way of development.
A) True
B) False
B) False
Explanation: While mitochondria are best known as the cell’s powerhouse for producing ATP, they also play crucial roles in cell signaling, growth, differentiation, and development. Their functions go beyond energy production and are essential to many developmental and metabolic processes.
About how many foreign microbes do we have within our own bodies?
A) 70 trillion
B) 30 billion
C) 70 billion
D) 35 trillion
D) 35 trillion
Explanation: The human body contains approximately 35 trillion foreign microbes, which play essential roles in digestion, immune function, and overall health. These microorganisms outnumber our own cells and form what’s known as the human microbiome.
During embryonic development, a human’s development accelerates more than the mouse embryo.
A) True
B) False
B) False
Explanation: In the early stages of embryonic development, a mouse embryo develops much faster than a human embryo. Mice reach developmental milestones in a matter of days, whereas human embryonic development is significantly slower and more prolonged.
