Characteristics of Life
These are two characteristics of life.
What are:
- Maintaining homeostasis
- Growing and developing
- Evolving
- Reproducing
- Using Energy
- Cellular
- Based on a universal genetic code
Your brain is made up of billions of these, which are the basic units of life.
What are cells?
This term refers to the fact that water has an unbalanced amount of electrons, leading to different charges on both sides.
What is a polar molecule?
What is polarity?
Starch, glycogen, and cellulose are all examples of this type of macromolecule (polymer).
What are carbohydrates?
Large polymers must be broken down into these small molecules in order to be able to pass into the bloodstream.
What are monomers?
A robot can move and use energy, but it lacks this essential characteristic that makes something truly alive.
What is:
- Universal genetic code
- Can reproduce
- Made of cells
Muscle fiber cells working together to contract your bicep represent this level of organization.
What is tissue?
Water sticks to itself due to this unique characteristic, related to polarity.
What is cohesion?
The building blocks of proteins that determine their shape and function.
What are amino acids?
This is the organ that allows small molecules to pass into the bloodstream.
What is the small intestine.
When a plant grows taller and develops new leaves over time, it's demonstrating this characteristic of life.
What is growth and development?
Glucose, amino acids, and water are all examples of this small level of biological organization.
What are molecules.
Water can stick to other surfaces and molecules due to this unique property.
What is adhesion.
Cell membranes are made almost completely of this hydrophobic macromolecule.
Lactase is an example of this unique protein which helps breakdown lactose sugars from milk in human stomachs.
What is an enzyme?
Bacteria that become resistant to antibiotics over generations are demonstrating this characteristic of life.
What is evolution?
These are the smallest known units in the universe and make up molecules.
What are atoms?
A landscaper finds a pool has become too basic to swim in. He can bring the solution back to neutral by adding this common household liquid.
What is vinegar?
Cows and other plant eating animals must spend long periods of time chewing in order to digest this large carbohydrate polymer.
What is cellulose?
Enzymes cause chemical reactions to change in this way.
What is happening more quickly?
What is lowering the activation energy?
Humans sweat to keep their internal bodies from getting over 98.6 degrees F, demonstrating this characteristic of life.
What is homeostasis?
A scientist is studying how the lungs interact with the trachea, and is studying this level of biological scale.
What are organ systems?
In a saltwater solution, the salt itself is referred to by this term.
What is solute?
The nucleus of the cell has large amount of nucleotides floating around, hinting that this macromolecule is being made there.
What are nucleic acids?
Enzymes are released into the stomach from these organs (1 will suffice).
What is the liver or pancreas?