BN507 MODULE 1 EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS GRADED A++
cranial cavity
contains the brain within the skull
spinal cavity
Contains the spine and spinal cord
thoracic cavity
contains heart and lungs
abdominopelvic cavity
contains abdomen and pelvis
Major elements of the human body
carbon, hydrogen, nitrogen, oxygen
Minor elements of the body
Iron chlorine magnesium sodium calcium phosphorus Sulfur iodine and potassium
Formation of bonds
Anabolic reactions
Breaking of bonds
Catabolic reaction
Covalent bonds
Valence electrons are shared to gain a full valence shell
Ionic bonds
, electrons are transferred from one atom to another
Homeostasis
Maintenance of internal body conditions within a set point
Negative feedback
Action of effectors immediately return variable to set point range (temperature)
positive feedback
Action of effector push the variable further away from the set point range (cervical
stretch)
cell membrane
Forms the external boundary of the cell and separates the cell from its external
environment
Cytoplasm
Consists of a gel-like substance in which organelles are suspended
Nucleus
The control centre of the cell, contained within its own nucleus
Parts of the cell membrane
phospholipids, cholesterol, proteins, carbohydrates, glycolipids and glycoproteins
Exocytosis
Vesicles formed within the cell 'bind' to and fuse with the cell membrane, then release
their content outside the cell
Endocytosis
Substances from the exterior of the cell are wrapped in a small bit of plasma membrane
which pinches off and moves into the cell
COMPLETE SOLUTIONS GRADED A++
cranial cavity
contains the brain within the skull
spinal cavity
Contains the spine and spinal cord
thoracic cavity
contains heart and lungs
abdominopelvic cavity
contains abdomen and pelvis
Major elements of the human body
carbon, hydrogen, nitrogen, oxygen
Minor elements of the body
Iron chlorine magnesium sodium calcium phosphorus Sulfur iodine and potassium
Formation of bonds
Anabolic reactions
Breaking of bonds
Catabolic reaction
Covalent bonds
Valence electrons are shared to gain a full valence shell
Ionic bonds
, electrons are transferred from one atom to another
Homeostasis
Maintenance of internal body conditions within a set point
Negative feedback
Action of effectors immediately return variable to set point range (temperature)
positive feedback
Action of effector push the variable further away from the set point range (cervical
stretch)
cell membrane
Forms the external boundary of the cell and separates the cell from its external
environment
Cytoplasm
Consists of a gel-like substance in which organelles are suspended
Nucleus
The control centre of the cell, contained within its own nucleus
Parts of the cell membrane
phospholipids, cholesterol, proteins, carbohydrates, glycolipids and glycoproteins
Exocytosis
Vesicles formed within the cell 'bind' to and fuse with the cell membrane, then release
their content outside the cell
Endocytosis
Substances from the exterior of the cell are wrapped in a small bit of plasma membrane
which pinches off and moves into the cell
