Characteristics of Life
All living things are composed of these and they hold organelles and DNA.
Cells
What types of bonds are found in both DNA and in water?
Hydrogen bonds and covalent bonds
Where in the cell are chromosomes (X-shaped structures composed of tightly coiled DNA) located in a cell?
Nucleus
What macromolecule is DNA an example of?
Nucleic Acid
Where in the cell is DNA held? (what MAIN organelle)
Nucleus
DNA holds what that codes for the characteristics of life?
Genetic information
What property of water helps DNA to stay together (provides stability)?
Polarity
The nucleus is the "brain" of the cell why is that? How does it get it's instructions?
Controls cell's activities and DNA
What are the monomers that make DNA?
Nucleotides
What are the 3 parts of the structure of DNA?
Sugar (deoxyribose)
Phosphate
Nitrogenous bases
DNA regulates cellular activities which helps keep our bodies in BALANCE. What is the characteristic of life that is trying to keep an internal balance?
Homeostasis
DNA is a molecule that lives in ideal conditions and one of the conditions is that it can be exposed to drastic temperature changes. What property of water resists temperature changes because the water wants to stay a liquid in the cell?
Specific heat
Does a prokaryotic cell have DNA? If it does where is it found in the cell?
Yes and the cytoplasm
What are the elements that make up DNA? (elements on the periodic table)
C.H.O.N.P
What are the base pairings?
A with T or T with A
C with G or G with C
DNA holds the information that allows us humans to go through all of the stages of life. (infant->baby->toddler->preteen->teen->adult-> etc.) What is that characteristic of life?
Growth and/or Development
Hydrogen bonds hold the DNA base pairs together. There is a property of water that similarly holds water together. What is the property of water that holds water molecules with other water molecules?
Cohesion
Although the nucleus is the main place that DNA is stored what are other organelles that can have DNA in them?
Mitochondria and chloroplasts
DNA codes for specific Proteins. DNA has instructions to repair lipids. DNA has a macromolecule in its structure. What is the macromolecule?
Carbohydrate
Who are the 3 (or 4) scientists that helped determine the structure of DNA?
Rosalind Franklin,
Watson and Crick,
Avery
DNA codes for specific functions that all living things perform. One specific characteristic of life that DNA encodes are the processes of meiosis and mitosis. What is that characteristics of life?
Reproduction (sexual or asexual)
What liquid substance is in the cell and moves in and out through osmosis?
Water
What life processes would DNA replication (S phase) be crucial for?
Mitosis and/or Meiosis
What is the carbohydrate that is found in the structure of DNA?
Deoxyribose
What machinery did the scientists use to get the image of the DNA structure?
X-Ray