Questions with verified Answers
homeostasis - ANSW-the body's ability to maintain a constant environment
two types of control systems in the body - ANSW-negative and positive feedback loops
negative feedback loops - ANSW-body senses change and reacts to negate or reverse the condition
positive feedback loops - ANSW-self-amplifying cycles in which an initial change leads to a greater
change
four major categories of organic molecules - ANSW-carbohydrates, lipids, proteins, nucleic acids
monomer - ANSW-single molecular unit of a polymer
polymer - ANSW-molecule containing many repeating single molecules (monomers)
three main types of lipids - ANSW-triglycerides, phospholipids, steroids
function of phospholipids - ANSW-cell/organelle membranes
composition of phospholipids - ANSW-fatty acids, phosphate group, glycerol
function of triglyerides - ANSW-energy storage and insulation
composition of triglycerides - ANSW-1 glycerol and 3 fatty acids
protein - ANSW-polymer of amino acid monomer
nucleic acids - ANSW-function hereditary (DNA) and protein synthesis (RNA)
gene expression - ANSW-making proteins from our DNA
transcription - ANSW-makes a working copy of the gene (RNA)
translation - ANSW-translates nucleotides to amino acids
cytoplasm - ANSW--fluid inside cell
-location of many cellular reactions including some with cellular respiration
nucleus - ANSW--location of DNA
-surrounded by nuclear membrane (lipids) that helps regulate transport in and out
endoplasmic reticulum - ANSW--made of lipids
-location of translation (protein synthesis) via ribosomes
ribosomes - ANSW-organelles made of protein and RNA that direct protein synthesis in the cytoplasm
Golgi bodies - ANSW--stacks of membranes
-packaging proteins for transport in membrane
vesicles - ANSW-small membrane sacs that specialize in moving products into, out of, and within a cell
mitochondria - ANSW--function in ATP production (cellular respiration)
-have a small piece of circular DNA
--inherited from mom
--mutations can cause diseases
Cytoskeleton - ANSW--network of proteins in the cytoplasm
functions of cytoskeleton - ANSW--structural support