Ch2 - composition of body and cells Flashcards
zygote
the origin of every cell in the body
the result of fertilization of an egg by a sperm
conception
the result of fertilization of an egg by a sperm
root - fertiliz
to make fruitful
fertilization
union of male sperm and female egg
fertilize
penetration of the egg by the sperm
suffix - ule
small
root - molec
mass
molecule
very small particle consisting of two or more atoms held tightly together
molecular
pertaining to a molecule
root - organ
structure with specific function in a body system
organelle
part of cell having specialized functions
suffix - elle
small
organism
any whole living plant or animal
suffix - ism
condition or process
tissue
collection of similar cells
zygote
as a zygote divides it carries out these basic life functions:
1 manufacture proteins and lipids
2 production and use of energy
3 communication with other cells
4 replication of DNA
5 reproduction of itself
organelle
small structures of the cytoplasm that cary out special metabolic tasks
nucleus
functional center of a cell that directs the cells activities, forms the 46 chromosomes from DNA
nucleolus
small mass found in the nucleus composed of DNA and is involved in the manufacture of proteins from simple materials in a process called anabolism
anabolism
the buildup of complex substances in the cell from simpler ones (proteins from simple materials)
mitochondria
produce energy by breaking down compouds like glucose and fat in a process called catabol
root - anabol
build up
root - catabol
break down
catabolism
the breakdown of complex substances into simpler ones as part of metabolism
root - chrom/o
color
chromosome
body in the nucleus that contains DNA genes
suffix - ism
process or condition
root - cyt/o
cell
suffix - plasm
something formed
cytoplasm
clear gelatinous substance that forms the substance of a cell except for the nucleus
deoxyribonucleic acid
source of hereditary characteristics found in chromosomes
suffix - lyte
soluble
electrolyte
substance that when dissolved in a suitable medium forms electrically charged particles
root - plasm
something formed
root - reticul
fine net, network
suffix - um
structure
prefix - endo
inside
endoplasmic reticulum
structure inside a cell that synthesizes steroids, detoxifies drugs, and manufactures cell membranes
hormon
chemical formed in one tissue or organ and carried by the blood to stimulate or inhibit a function of another tissue or organ
prefix - intra
within
root - cellul
small cell
intracellular
within the cell
lipid
general term for all types of fatty compounds ie cholesterol, triglycerides and fatty acids
root - membran
cover skin
metabolism
the constantly changing physical and chemical process occurring in the cell that are the sum of anabolism and catabolism
root - metabol
change
root - mit/o
thread
root - chondr
granule
mitochondria
(plural of mitochondrion) organelles that generate store and release energy for cell activities
nuclear
pertaining to a nucleus
protein
class of food substance based on amino acids
ribonucleic acid RNA
the information carrier from DNA in the nucleus to an organelle to produce protein molecules
root - ster
solid
suffix - oid
resembling
steroid
large family of chemical substances found in many drugs, hormones, and body components
karyotype
picure of human chromosomes lined up in pairs
DNA is composed of
adenosine
cytosine
guanine
thymine
nucleotide
base formation of a sugar and phosphate
chromatin
DNA that forms chromosomes during cell division
root - chrom/a
color
prefix - de
without
prefix - oxy
oxygen
root - ribo
ribose
root - nucle
nucleus
root - acid
acid, low ph
epigenetics
the study of disorders produced by the effects of chemical compounds or environmental influences on genes
gene
the function unit of heredity on a chromosome
root - gen
to create
root - ome
body
genome
a complete set of chromosomes
helix
a spiral of necleotides in the structure of dna
root - heredit
inherited through genes
heredity
the transmission of characteristics from parent to offspring