Animal Systems Kahoot Review NOT MADE BY LUND Flashcards
These types of organisms generate heat using metabolism
Endotherms
Homeostasis is a cycle that
Moderates internal environmental changes
What is not an adaptation to aid in thermoregulation?
Homeostasis
Which is an ectotherm
Frog
If X happens, then Y will happen, resulting in Z is an attempt to maintain homeostasis
Negative feedback
Glucagon regulates
Low blood sugars
Homeostatic cycle that amplifies existing response. If x happens then Y happens resulting in X
Positive feedback
What type of hormonal signaling is used for a long distance target cell
Endocrine
The hormone melatonin influences the
Circadian rhythms
After eating, blood sugar levels increase and in response the pancreas starts secreting
Insulin
After extreme exercise the pancreas secretes …… To convert energy reserves
Glucagon
What is the job of natural killer cells?
Recognize and eliminate diseased cells
What are produced when B Lymphocytes recognize a foreign material?
Antibodies and memory cells
What is an organism or virus that causes disease?
Pathogen
A flu shot is an example of what type of immunity?
Active immunity
These cells become exaggerated in an allergic response
Mast cells
A reflex arc involves which structures
Sensory neuron, spinal cord, motor neuron
In which direction does an electrical impulse move through a nerve?
Dendrite, axon, terminal branch
The sympathetic nervous system controls..
Fight or flight response
The central nervous system contains…
Brain and spinal cord
What type of signal crosses a synapse?
Chemical
Which of these is a motor neuron?
Middle of finger
The peripheral nervous system involves
All nerves outside the CNS
Labor, lactation, fever, fruit ripening, and blood clotting are all examples of what?
Positive feedback
Organisms that lay eggs are
Oviparous
The biological advantage of sexual reproduction
The potential for genetic variation in offspring
Which is a germ layer that is formed during gastrulation?
Endotherm, ectotherm, mesoderm
If the membrane voltage reach threshold potential….
Ions can diffuse through the cell membrane
Resting potential across a neuron membrane is maintained by…
Active transport
How do actin and myosin molecules interact?
Myosin heads bind to actin filaments
Which statement is true?
Actin and myosin cannot separate without atp
Graded muscle contractions occur by
Summation
During the first 15 min of a run the major energy source of a runners leg is…
Oxidative metabolism
Ca^2+ is important in muscle contraction because it..
Changes troponin to expose myosin binding sites
The 3 different systems by which muscles obtain ATP
Differ in capacity and rate at which they produce ATP
