Characteristics of life
What are the six characteristics of life?
Cells, Grow and reproduce, obtain and use energy, respond to a stimulus/stimuli, genetic code (DNA or RNA), homeostasis
What characteristic do viruses share with living organisms?
They can reproduce and they have a genetic code
What are macro or biomolecules?
Large, organic molecules that are essential for several life functions.
Where are carbohydrates found?
Sugar and starch but more specifically bread, pasta, fruits, etc.
Where are proteins found?
meats, nuts, eggs, etc
What is homeostasis?
The maintaining of internal conditions or balance
Can viruses reproduce on its own? If so, how?
No, it cannot
What are the main types of macromolecules?
Proteins, lipids, carbohydrates, and nucleic acids
What are the elements of carbohydrates?
Carbon (C), Hydrogen (H), Oxygen (O)
What elements are proteins made of?
Carbon (C), Hydrogen (H), Oxygen (O), and Nitrogen (N)
What is spontaneous generation and who is the scientist that believed in it?
It is the idea that life can come from a non-living organism and Francesco Redi is the man who believed in it.
Can viruses have both DNA and RNA at the same time?
No, they will either have one or the other?
What are MOST macromolecules made of?
Polymers
What is the MAIN function of carbohydrates?
short-term energy
What type of macromolecule are enzymes?
protein
How does a plant reacts to light and gravity?
It bends toward the light
Do viruses have cells?
NO
What is dehydration synthesis?
The building of polymers using multiple monomers and removing a water molecule
1 milligram of lipids equal how many calories?
9
What is the number associated with the carbon sugar in nucleic acids
5
A set of twins are walking down the street and a dog starts to chase them out of nowhere. Both twins yell and start to run. What is the stimulus in this scenario?
The dog chasing the twins
Why are viruses considered non-living by some scientists?
They only meet TWO of the characteristics of life and for the most part you have to meet all of them to be considered living
What is hydrolysis?
The breaking of polymers into monomers by adding a water molecule
The two tails or fatty acids of a phospholipids are hydrophilic or hydrophobic?
hydrophobic
What is the monomer of nucleic acids?
nucleotides