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Bio Lab Test 2
Terms in this set (40)
Is nanometer, centimeter or micrometer the larger measurement unit for length?
Would you expect the weight of a penny to be given in terms of kilograms or grams?
What units of measurement appear on a graduated cylinder?
Water boils at !00 degrees in what scale?
What unit of measurement is used for daily energy intake?
energy intake vs. energy requirement
What two energy measurements determine whether you gain weight or lose weight?
physical activity, BMR, SDA
daily energy requirement has what three components?
BMI, body composition
what are two methods for calculating ideal weight?
what is a listing of all foods eaten for a day?
what does kcal mean?
daily energy requirement includes energy for physical activity, SDA and what else?
give an example of basal metabolism activity
SDA refers to energy needed for what activity?
With age, the BMR decreases. What is the implication for daily energy intake?
BMR depends on surface area
Why does a tall, thin person have a higher BMR than a short, stout person?
Daily energy requirement must be in balance with what to not gain weight?
lose or gain
If the average energy intake/day equals the average energy requirement/day, the person will not
ideal weight includes lean body weight and what else?
Generally speaking, a male should have no more than what % of body fat?
calculation of ideal weight is considered to be the most accurate if it is based on your
how many kcal are equal to a pound of fat?
in which sex is it natural to have a higher percentage of body fat?
Stack of membranous saccules; functions in processing, packaging and distribution of molecules
membranous sacs; storage and transport of substances
have a double membrane; responsible for cellular respiration and production of ATP molecules
particles that carry out protein synthesis
outer surface that regulates entrance and exit of molecules
region in nucleus that produces subunits of ribosomes
short cylinders, present in centrosomes, of unknown function
central body, having diffuse threads of DNA and protein
vesicle that digests macromolecules and even cell parts
Composed of microtubules, actin filaments, and intermediate filaments, responsible for the shape of the cell and movement of its parts
membranous saccules and canals having no ribosomes, synthesize lipid molecules
Which part of the endoplasmic reticulum would produce digestive enzymes that are sent to the digestive tract?
Which part of the endoplasmic reticulum would produce a sex hormone (lipid molecule)?
How would molecules be transported to another part of the cell?
Why is it beneficial for different parts of the cell to have specific functions?
takes no energy
Why is it beneficial for cellular substances to cross the plasma membrane by diffusion?
red blood cells are isotonic
Why is 0.9% the usual tonicity of intravenous solutions?
enzyme reactions increase
Why is a warm body temperature advantageous to metabolism?
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