Cellulose belongs to which of the following groups of macromolecules ___________? It composes the cell wall in ______________.

RNA molecules that catalyze biochemical reactions are known as what?

Key differences between prokaryotic and eukaryotic ribosomes: Eukaryotic ribosomes and their subunits are larger (80S) and contain more proteins and larger ribosomal RNAs (rRNAs) than those of bacteria which are smaller (70S). 

Heat, light, electrical, chemical, nuclear, sound are all examples of energy. 

Chemical energy, for example the energy in a mole of ATP, is an example of_____________ energy

Energy entering/leaving the system in units of heat energy is termed

Fill in the blanks. Correct spelling is essential. Horizontal layers of rock are called _______ . _______ occurs when remains of dead organisms are turned to stone. The _______ fossils are found in the deepest strata. A seashell might make an imprint in mud, which forms a _______ . Plants are frequently found fossilized as _______ fossils. Coprolites (animal excrement) are an example of _______ fossils. Fossils generally become exposed as the result of millions of years of _______ .

Page 130 Match each fossil photo with the type of fossil it represents.

The mRNA then travels from the nucleus to the _______ , to the protein-making machinery, called the _______ . It starts at the sequence _______ , and reads _______ nucleotides at a time. Each 3-nucleotide _______ specifies a particular _______ . The _______ codons tell the ribosome that the _______ is complete.

The human genome contains about   _______ genes. (Type just a number; no words.) Cells use the two-step process of _______  followed by  _______ to read each gene and produce the string of _______ that makes up a  _______ . Transcription happens in the _______ , when the cell’s machinery copies the gene sequence into _______ RNA. (Spell out the entire word.) In mRNA, the base _______ replaces thymine.