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75 Cards in this Set

  • Front
  • Back
If sugar is dissolved in H20 water is the ____ and sugar is the ____.
Solvent, Solute
Which of the following is not an element? Mg, O2, H2 or H20?
DNA is the ____ material in all organisms.
A hypothesis is a statement that can be ____.
Scientific theories can be _____ if new evidence is gained.
Scientific hypotheses are tested by ______.
What is pH? What are the pH numbers? How can you determine if something is an acid or a base?
0-14. 0-6 is an acid 8-14 is a basic and 7 is neutral.
What are all the components in a scientific method or experiment?
Hypothesis, theory, control group, independent variable, dependent variable, conclusion and experimental group.
Internal balance or stablilty is an example of what?
organic polymers like starch are made up of monomers like?
What is activation energy?
minimum amount of energy required to trigger a chemical reaction.
What are the atomic subunits?
protons, electrons and neutrons
What element can bind to itself to form long chains?
Glucose is a _____ most commonly used in cellular respiration.
A lipid is?
one of a class water-avoiding compound.
What is a protien?
polymer constructed from a set of 20 amino acid monomers.
What is a carbohydrate?
organic compound made of sugar molecules.
Fatty acids are long hydrocarbon chains consisting of?
C, H & O
Maximum cell size is limited because as it grows its ___ increases faster than is surface.
cell membranes are mostly made up of a...
phospholipid bilayer.
What releases energy from food?
Whats an example of an organ?
What is a tissue?
cooperating unit of many similar cells that perform a specific function.
What is an organ?
Unit consisting of several tissues that together perform a special task.
What is a organ system?
unit of multiple organs that together perform a vital body function.
What is the cell theory?
gernalization that all living things are composed of cells, and that cells are the basic unite of structure and function of all organisms.
The study of cells improved over the centuries due to the improvements in the light...
Why are the cell membranes considered semi-permeable? (selectivel permeable)
Selevtively permeable membrane allows some substances to pass more eaisly than others and blocks the passage of some substances altogether.
The nucleus of a cells contains the?
Nucleolus, chromatin, and DNA
What is a difference between plant and animal cells?
Plant is square and animal is circle.
____ convert light energy into chemical bond energy.
Ribosomes produce?
What are the initial reactants of photosynthesis?
Oxygen and carbon dioxide
the final products of photosynthesis are?
Carbohydrates and oxygen
Te end product of the aeorbic respriation is?
water and carbon dioxide
What is prokaryotic?
cells lacking a nucleus and most other organelles.
What is eukaryotic?
cell with a neucleus (surrounded by its own membrane) and other internal organelles.
Ions are atoms that have more ____ than electrons in their makeup.
The krebs sycle occurs in the _____ of the cell.
Photosynthesis, glycolysis and fermation dont use?
If two atoms share two pairs of electons they form?
covelent bonds
_____ is the movement of moelcutes from an area of greater concentration to an area of lesser concentration.
_____ is the diffusion of H20 across a membrane or barrier.
Cells require energy to?
grow, repair damaged parts, remain highly organized.
The ____ is the ultimate source of energy.
____ is the green pigment that absorbs solar energy.
Volume of a liquid can be measured in what?
liter or milliliter.
Moving a potassium ion up a concentration gradients requires? Which is an example of?
cell energy, ATP
All life forms use?
energy, have homeostasis, exhibit cellular organization, exhibit growth and development and reproduce (sexually and asexually)
Microscopes are mostly found to observe?
cellular organization
What is not a life form and why?
Virus because it cannot reproduce on their own.
A scientific method starts with?
A question posed befor the start of a scientific experiment can be?
Qualitative, Quantitative and may lead to proving the experiemtns statement true or false.
An experimental control is identitical t the test minus the?
independent variable
In the scientific experiment there can be only one____ but multiple tests.
A ______is based on the analysis and the evalution of any interrelated experiments.
The difference between an element and a compound is the ability to be?
broken down chemically
The atomic number of an element is ____ to that element.
The periodic table of elements has rows and columns organized by ____, can be used to determine the number of electrons of one atom,and show what type of bonds each atom must make.
atomic mass
An endergonic chemical reaction takes in?
heat energy
An enzyme can lower the ____ for the biological chemical reaction.
activation energy
Carbohydrates always follow a?
1:2:1 CHO formula ratio
Proteins are best characterized by the presence of?
Nucleic acids are best characterized by the presence of?
Dehydration sythesis makes fats from glycerol & lipids, makes plysaccharides from simple sugars, plymerizes amino acids to produce peptides and can be reversed by?
___ are characterized by the persence of the hydroxyL radical group.
All cells produce?
proteins and enxymes
the gogli apparatus works with the?
endoplasmic reticulum
Plant cells contain chloroplast and other plasts to assist in the catabolic reactons and they produce?
Mitochondria are not found in prokaryotic cells, use enzymes and end with synthase, move protons to create a concentration gradient and produce _____, and are not found in anaerobes.
The nucleolus contains the ____ , is the central location point for the chromosomes, uses RNA and proteins,
ATP is required for the
activation transport process
autotrophs are organisms that?
make their own food
Heterotrophs are organism that?
cannot make their own food. they must eat
Glucose and oxygen are reactants in?
cellular respiration