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Practice Teas Science

STUDY
PLAY
Breakdown of Fats begins in the...
small intestine
Breakdown of carbohydrates begins in the...
mouth
Breakdown of protein begins in the...
stomach
____ is not digestible
fiber
Define Paradigm shift
a radical change from previous thinking
Define adaption
the increase of alleles of certain genes from generation to generation that allows a species to survive and reproduce better.
Natural selection
the means by which adaption occurs
What nervous system activates the body's fight-or-flight response?
sympathetic nervous system (in presence of stress, the heart beats faster and stronger, more blood is carried to the vital organs, and the pupils dilate to prepare body to defend itself)
What type of data deals with numbers that can be measured?
Quantitative data
water undergoes relatively minor temperature and phase changes compared to other substances due to its...
high specific heat ad high heat of vaporization.
when a new species is being named and classified the new classification system relies more heavily on... similarities than ...
DNA sequence, physical characteristics
Hydrocarbons with double bonds obey what general formula?
CnH2n (C4H8) Number of Hydrogen atoms are always double the number of Carbon atoms.
what system provides the body's cells with oxygen and nutrients?
Cardiovascular
what system supplies the body with oxygen and removes carbon dioxide?
respiratory system
what muscle tissue are responsible for peristalsis that occur in the digestive tract?
smooth muscle tissue
Protons have a charge of
+1
electrons have a charge of
-1
Protons mass is... massive than electrons mass
2000 times more
The spine is a part of what system?
skeletal system
The spinal cord is a part of what system?
Central nervous system
If a gas(A) has higher density than another ga(B) it will travel ... than that gas.
more slowly
If a gas(A) has lower density than another gas(B) it will travel ... than that gas.
faster
In what organ is immune cells produced
bone marrow
The heart is located ___ the sternum
behind
Population growth is ____ correlated with consumption of energy
positively
exchange of oxygen occurs in what structure of the respiratory system?
Alveoli
fertility rates are ___ in less-developed countries than in more-developed countries.
higher
The mass of an atom is determined by the number of ____ and _____.
protons, neutrons
______ is considered an internal factor that enzyme activity is driven by.
amino-acid structure
___, ____, and ___________ is considered to be external factors that enzyme activity is driven by.
pH, temperature, and substrate concentration
_____ cells lacks membrane bound nucleus
prokaryotic
mutations in human DNA originate in the____ and is expressed in the ____
genotype, phenotype
what is the powerhouses of cells in heterotrophs
mitochondria
the rough surface on ER is due to
ribosomes
the smooth surface on smooth ER is due to
lack of ribosomes
Covalent bond is the____ of electrons while ionic bond are the ... electrons to complete valence structure.
sharing, donating and accepting
mutations along ___ cells are passed on to future generations.
germ
DNA codons in genes encode_____, which comprise ____.
Amino-acids, proteins
during cell replication polymerase enzyme duplicates...
DNA
Meiosis occur in ___ cells only.
germ cells
Define: Kinetic energy
energy of motion
potential energy
the ability of a system to do work due to its position or internal structure