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
Triple points
A section of DNA that codes for a protein is called a _______.
gene
Triple points
All living things use _________ in order to power their life activities like eating, moving and thinking. All living things seek to keep a stable internal environment despite changes in their external environment. This characteristic of life is called__________.
energy
homeostasis
Organs that work together to perform a specific set of functions
organ system
Double points
Name the four biomolecules.
carbohydrates, lipids, proteins, nucleic acids
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
Double points
Name the two steps of protein synthesis in the correct order.
1. Transcription
2. Translation
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
The scientific name for fats and sugars
What is lipids and carbohydrates?
Double points
Most of the DNA in cells can be found in the ________. There is also a small amount of DNA in two additional organelles, _________ and ___________.
nucleus
mitochondria
chloroplasts
________ takes a message from DNA, goes to a _________ and then that message is translated to make a _________.
mRNA, ribosome, protein
Bacteria reproduce _________ which basically means they clone themselves. Animals reproduce __________ because two individuals are involved in creating new offspring.
asexually, sexually
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
______ has the information to make ribosomes and ________ make proteins.
nucleolus, ribosomes
Identify the three main types of RNA and briefly describe what each one does.
messenger RNA (mRNA): brings the genetic code from DNA to a ribosome
transfer RNA (tRNA): brings correct amino acids to ribosomes and base pairs with mRNA
ribosomal RNA (rRNA): makes up ribosomes and bonds amino acids together to make a protein