Quiz #1 pointers Flashcards
Which of the following imaging techniques would be best to use to study the growth and development of a fetus?
-Ultrasonography
-MRI
-X-ray
-PET
-CT
ultrasoundography
The single most abundant chemical substance of the body, accounting about 60% to 80% of body weight, is ________.
-protein
-oxygen
-hydrogen
-water
water
Which of the following is a logical organization?
-Molecules, atoms, cells, tissues
-Atoms, cells, molecules, tissues
-Atoms, molecules, cells, tissues
-Atoms, tissues, molecules, cells
-Atoms, molecules, cells, tissues
Which of the following describes the operation of the heart and blood vessels?
-cardiovascular physiology
-systemic physiology
-systemic anatomy
-cardiovascular anatomy
-vascular physiology
cardiovascular physiology
Produces antibodies that attach to foreign substances.
-Cardiovascular
-Endocrine
-Immune
-Lymphatic
immune
Although a man who weighs 175 pounds on Earth would be lighter on the moon and heavier on Jupiter, his ________ would not be different.
-Energy
-Mass
-Weight
-Matter
mass
When the bonds of ATP are broken, energy is released to do cellular work.
-Radiant energy
-Mechanical energy
-Electrical energy
-Chemical energy
chemical energy
The numbers listed represent the number of electrons in the first, second, and third energy levels, respectively. On this basis, which of the following is an unstable or reactive atom?
2, 8
2, 8, 1
2
2, 8, 8
2,8,1
Produced in the nucleus, this molecule specifies the exact sequence of amino acids of the protein to be made.
-Transfer RNA
-Ribosomal RNA
-Messenger RNA
-ATP
-Synthetase enzymes
messenger RNA
Chromosomal centromeres split and chromosomes migrate to opposite ends of the cell.
-Late prophase
-Telophase
-Early prophase
-Metaphase
-Anaphase
anaphase
What is homeostasis
-maintenance of a relatively stable internal environment despite continuous outside changes
-a dynamic state of equilibrium
What are the homeostatic control mechanisms
-involve continuous monitoring and regulation of many factors (variables)
-nervous and endocrine systems accomplish the communication via nerve impulses and hormones
What happens is there is an imbalance/disturbance in homeostasis?
-increase risk of disease
-contributes to changes associated with aging
-may allow destructive positive feedback mechanisms to take over (EX: heart failure)
What is responsiveness/irritability
-the ability of an organism to adjust to changes in its internal and external environments
What are the 6 levels of organization from simplest to most complex?
(HINT:C.C.T.O.O.O)
CHEMICAL: atoms and molecules
CELLULAR: cells and their organelles
TISSUE: groups of similar cells
ORGAN: contains two or more types of tissues
ORGAN SYSTEM: organs that work closely together
ORGANISMAL: all organ systems
What are the number of electrons on different energy levels.
2,8,18,32
What are 3 different types of bonds
-ionic
-hydrogen
-covalent
What is an ionic bond
a chemical bond formed when one atom gives up one or more electrons to another atom
What are the 11 organ systems
(HINT: I.S.M.N.E.C.L.R.D.U.R)
-integumentary system
-skeletal system
-muscular system
-nervous system
-endocrine system
-cardiovascular system
-lymphatic system
-respiratory system
-digestive system
-urinary system
-reproductive system (M/F)
Describe the integumentary system
-encloses internal body structures
-site of many sensory receptors
EX: skin, hair, nails
Describe the skeletal system
-supports the body
-enables the movement (with muscular system)
EX: cartilage, bones, joints
Describe the muscular system
-enables movement (with skeletal system)
-helps maintain body temperature
EX: skeletal muscles, tendons
Describe the nervous system
-detects and processes sensory information
-activates bodily responses
EX: brain, spinal cord, peripheral nerves
Describe the endocrine system
-secretes hormones
-regulates bodily processes
EX: pituitary gland, thyroid gland, pancreas, adrenal glands, testes, ovaries