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WorksheetsSpring 2026 Exam III Review
Total questions: 44
Worksheet time: 11mins
T/F: Food molecules we can't break down and absorb move on to the large intestine where they can cause uncomfortable symptoms when our gut microbes get a hold of them
True
False
T/F: If one of the nodes in our heart stops working, the other can substitute with no issue
True
False
T/F: the heart's rhythmic contracting is the "active" portion of the circulatory system
True
False
Which of the following is NOT a way the liver contributes to our body's homeostasis?
Glycogen storage and release
Drug metabolism
Filtration of wastes from blood
Bile production
The microvilli (folds) in the small intestine are essential because they:
decide which nutrients to absorb
filter out nutrients
dramatically increase surface area for absorption
are not essential
Proteins and carbs are absorbed from the interior of the small intestine via:
active transport
osmosis
diffusion
facilitated diffusion
Lipids are absorbed from the interior of the small intestine via:
osmosis
diffusion
active transport
facilitated diffusion
proteins and carbohydrates are absorbed into the bloodstream, while most lipids are absorbed into:
the bloodstream too
the liver
the lymphatic system
capillaries around the small intestine
Chyme is extremely ____, so the pancreas must produce ____ to offset this
basic, acid
liquid, fiber
acidic, bicarbonate
acidic, carbon dioxide
T/F: lactase is an essential enzyme throughout a human's life
True
False
T/F: the number of microvilli in the small intestine doesn't really matter
True
False
A dysfunction in overall digestive enzyme production would leave a patient with intolerances to:
dairy foods
fibrous foods
MANY types of foods
macronutrients
Uncomfortable food intolerance symptoms are caused by:
the immune system
gut microbes feasting on intact nutrient polymers
a blockage in the intestine
not enough bile
Which of the following would not be absorbed in the small intestine?
amino acid
monoglyceride
monosaccharide
disaccharide
Which macronutrient is absorbed into the blood stream very differently than the others?
lipids
carbs
proteins
water
T/F: All four of the heart's chambers have the same structure and function as each other
True
False
The heart is under the control of electrical impulses generated by:
the pacemaker nodes
the brain
the pituitary gland
the nervous system
which of the following is a characteristic that skeletal, smooth, and cardiac muscle DO NOT share?
actin/myosin fibers
use of ATP
requirement for calcium
voluntary control
A restriction enzyme cuts DNA when:
they are exposed to each other
the entire specific recognition sequence is present
they are incubated to a high temperature
a G is next to a C
gel electrophoresis separates DNA by
size
intensity (brightness)
pieces with the same base pair combinations (GC vs AT)
source
the small intestine relies on ____ and ____ digestion to get nutrients down to single subunit
acid, base
chemical, mechanical
muscular, acidic
chewing, swallowing
Which two things are required for ANY TYPE of muscle contraction?
calcium and ATP
glucose and oxygen
myoglobin and glycogen
ATP and myosin
Blood going out of the heart to the systemic circuit is ___ in oxygen
high
low
blood going out of the heart to the pulmonary circuit is ___ in oxygen
high
low
blood traveling throughout the cells in the systemic circuit are dropping off ___ and picking up ___
oxygen and nutrients, wastes
wastes, oxygen and nutrients
carbon dioxide, nutrients
blood passing by the small intestine goes to the ___ next
liver
lungs
heart
extremities
Oxygen and nutrients are easily delivered to the body's cells via ____ because of a constantly reestablished ____
diffusion, concentration gradient
active transport, metabolic need
facilitated diffusion, voltage gated channel
active transport, concentration gradient
The stomach plays a helpful role of mixing and storing chyme for several hours, slowly sending it along to the SI, which helps achieve which overall digestive system goal?
mechanical digestion
maximal absorption of single subunits in the small intestine
Breakdown of nutrients to single subunits
Preventing hunger
T/F: Vomiting is protective
True
False
Lipids require digestive enzymes AND bile for successful absorption because they are _________
too large
too small
hydrophobic
essential
T/F: different blood vessels are structured perfectly to meet the challenges of the function they provide
True
False
Our respiratory system brings environmental air in to the lungs by creating a ___________ gradient
concentration
pressure
fantastic
diffusion
Our respiratory system spends ATP on ____________
gas exchange
exhalation
inhalation
diffusion
T/F: Red Blood Cells play an essential role in transporting Oxygen away from the lungs for delivery to cells all over the body
True
False
T/F: Each Red Blood Cell contains millions of hemoglobin proteins in order to perform its oxygen transportation function
True
False
Blood pressure and velocity are highest in the blood vessels __________ the heart
leaving
returning to
skipping over
Which of the following is NOT a feature of a capillary?
thin walled
leaky
highly branched
muscular
Veins have ________
valves
value
thin walls
surface area
T/F: Moisture in the lungs is essential for gas exchange to occur
True
False
Which of the following is NOT found in blood?
cells
wastes
bile
nutrients
A SNP mutation in a cytochrome p450 enzyme, like CYP1A2, could cause a change in ______
speed of drug metabolism
blood flow through liver
pancreas juice production
digestion of lactose
Oxygen passes through the alveoli and capillary walls by way of ________
active transport
diffusion
endocytosis
facilitated diffusion
T/F: The respiratory system removes ALL of the body's CO2 waste produced in cellular respiration
True
False
The pancreas performs both _________ and _________ functions
digestive, endocrine
endocrine, skeletal
digestive, circulatory
endocrine, excretory
