Characteristics of Life
This term refers to how living things change over time
evolution
A group of cells that work together to perform a specific function
tissue
This type of biomolecule is very versatile. They are the essential workers in living things.
proteins
Identify the base pair rule in DNA.
Adenine -- Thymine
Cytosine -- Guanine
A section of DNA that codes for a protein is called a _______.
gene
All living things use ______ in order to power their life activities like eating, moving and thinking
Organs that work together to perform a specific set of functions
organ system
Name the four biomolecules.
Identify DNA's structure.
double helix or twisted ladder
DNA contains the ________ to build living things and _________ are like the workers that carry out those instructions.
instructions, proteins
This is the smallest unit of life
cell
_______ are the smallest unit of matter, and they bond together to form _______.
Atoms, molecules
__________ provide short term energy for living things, while _______ provide long term energy and insulation.
Carbohydrates, lipids
DNA copies itself through the process of ____________. This process is semiconservative because each DNA molecule is made of one new and one old _______.
replication, strand or side
Which biomolecule has the most structures and performs the most functions as a result?
proteins
Which characteristic of life refers to the passing of traits from one generation to the next
heredity or genetics
All of the living and nonliving things interacting in particular area is an _____________.
ecosystem
Name the six elements essential for life.
In which organelle within cells is DNA found?
nucleus
Why must DNA copy itself through replication?
DNA must copy itself so that new cells can get DNA in order to replace dead cells.
Living things _______ to their environment. For example, animals notice movement and look in response, and trees grow towards the ____.
respond, sun
Put the following terms in order from smallest to largest: cell, organism, tissue, molecule, atom, organelle, organ, organ system
atom, molecule, organelle, cell, tissue, organ, organ system, organism
Name two nucleic acids.
DNA, RNA
When DNA replicates itself it needs the help of special proteins called ________. The replicated DNA will be identical to the original DNA except for any accidental changes called __________.
enzymes, mutations
What was the name of the scientists who took the special image of DNA that allowed other scientists to figure out its shape?
Rosalind Franklin