PHOTOSYNTHESIS: A CLOSER LOOK
True
A green house may be used to control temperature and carbon dioxide.
True
A tiny body with plant cells, the chloroplast, is the power generator for life on earth.
nitrogen
All proteins contain ________________, in addition to carbon, hydrogen, and oxygen.
True
Animals and humans cannot live without protein in their diet.
fifty
Each protein molecule is made of at least __________ amino acid units.
True
Enzymes are an example of proteins.
proteins
Enzymes are:
False
For maximum photosynthesis, increased light intensity has greater effect than increased leaf surface area.
true within limits
Photosynthesis continues to increase with temperature:
ribosomes in plants and animals
Proteins are made by:
iron sulfur phosphorous zinc nitrogen
Proteins may be identified separately from fats and carbohydrates by the presence of certain elements. Choose the elements that qualify.
False
Proteins of one plant are like proteins of other plants, but animal proteins are unlike each other and plant proteins.
False
Protoplasm consists of numerous combinations of 22 proteins.
False
Ribosomes are only found in plant cells.
dark reaction
Since carbon as an atmospheric gas is locked into a food molecule, it is termed carbon dioxide fixation.
True
Some of the most complex organic molecules are those of proteins.
amino acid
the building blocks of proteins
ATP
the high energy chemical compound that provides energy
light reaction
Hill is known for working out reactions taking place during the ________________ of photosynthesis.
splitting of water molecules
The oxygen which is released into the air by a plant originated from:
thousands of different proteins
The twenty two amino acids are capable of producing ______________.
fat
provides energy storage and structure for life
True
Carbon dioxide levels above normal will increase plant growth of other factors are adequate.
False
Proteins are the building blocks of amino acids.
amino acids
The building blocks of proteins are _____________.
produce a carbohydrate from CO2
The chemical energy stored in ATP during photosynthesis is released during the dark phase to:
splitting of the water molecule
Van Niel's theory, later shown to be correct, claimed that the oxygen produced by photosynthesis comes from the ________________________.
protein
a food made up of carbon, hydrogen, oxygen, nitrogen
oxygen
essential to aerobic respiration
protein synthesis
the putting together of protein molecules from amino acids
stomate
the tiny pores or leaf openings appearing between guard cells