Homeostasis, Nutrition, Digestion & Absorption Quiz
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What macromolecule is broken down by this structure?
A. carbs
B. fats
C. proteins
D. nucleic acids
What changes occur to cool the body down?
A. Vasoconstriction, increase sweating and hairs lie flat
B. Vasodilation, increase sweating and hairs lie flat
C. Vasodilation, reduced sweating and hair stand up
D. Vasoconstriction, increase sweating and hairs lie flat
What changes occur to increase body temperature
A. Vasoconstriction, hair erector muscle relaxes and hair pulled upright, no sweating and shivering
B. Vasodilation, hair erector muscle contract and hair pulled upright, no sweating and shivering
C. Vasoconstriction, hair erector muscle contract and hair pulled upright, no sweating and shivering
D. Vasodilation, hair erector muscle contract and hair pulled upright, increased sweating and shivering
What name do we use to describe the maintaining of constant/stable internal conditions, such as: blood glucose levels, body temperature and water levels, inside the body?
A. Hormonal control
B. Homeostasis
C. Nervous system
Rapid growth during puberty causes your body to release more and more growth hormones. As you grow, more and more growth hormones are released until puberty is reached, and then the hormones stop.
A. Positive Feedback Response
B. Negative Feedback Loop
This organ produces the hormones that help regulate blood glucose levels.
A. Pancreas
B. Liver
C. Small intestine
Name this structure
A. spleen
B. gall bladder
C. pancreas
D. jejunum
What is an endotherm?
A. a human
B. a frog
C. a toad
D. a fish
Waves of contractions that move food one way through the digestive system are called
A. Impulse
B. Peristalsis
C. Action Potential
D. Metabolism
Where is pepsinogen secreted?
A. the mouth
B. the stomach
C. the pancreas
D. the gall bladder
This is the enzyme that works on protein.
A. pepsin
B. HCl
C. Bicarbonate
D. Lactase
The stomach wall produces mucus to cover its surface. Which of the following statements correctly describe(s) the function of the mucus?
(1) It kills the bacteria in the ingested food.
(2) It prevents the rubbing of food against the stomach wall.
(3) It protects the stomach wall from the action of the digestive enzymes.
A. (1) only
B. (3) only
C. (1) and (2) only
D. (2) and (3) only
Fingerlike extensions of the small intestine that increase the surface area for absorption
A. bronchi
B. alvioli
C. villi
D. chyme
The term for maintaining internal temperature is:
A. Thermoregulation
B. Thermometer
C. Homeothermal
D. Homeostasis
An organism that produces its own body heat is called…
A. Ectotherm
B. Endotherm
What is an ectotherm?
A. fish
B. cat
C. dog
D. human
If the environment gets cold, we will often shiver in order to:
A. keep body temperature the same as the external temperature
B. decrease body temperature
C. increase body temperature
D. regulate blood pressure
Which of the following organs produces digestive juice that does not contain enzymes?
A. liver
B. mouth
C. stomach
D. pancreas
What is involuntary contractions of voluntary muscles to warm up?
A. Shivering
B. Sweating
C. Vasodilation
D. Vasoconstriction
The villi provides a surface area for the absorption of nutrients into the bloodstream.
A. TRUE
B. FALSE
The two types of feedback systems that help organisms maintain homeostasis are:
A. positive and negative
B. receptor and effector
C. static and dynamic
D. minor and major
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels.
A. Positive Feedback Response
B. Negative Feedback Loop
The “cause” for something to happen is the
A. response
B. effect
C. stimulus
D. homeostasis
Protein is broken down into ______________ before they are asborbed into the small intestines.
A. fatty acids
B. amino acids
C. citric acid
D. hydrochiloric
What is the main purpose of the small intestine?
A. nutrients get absorbed into the blood/lacteal
B. bile is produced
C. water is removed
D. nutrients are assimilated
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