Cell Structure
what is a nucleus?
- control center
- contains DNA
What are the macromolecules?
- Protein
- Lipid
- Carbohydrate
- Nucleic Acid
What is an example of Carbs?
- bread
- sugar
- starches
finish the sentence
Water is held together with covalent bonds between...
2 hydrogen atoms and 1 oxygen atom.
What is Adhesion?
it is when water sticks to other substances
What is a mitochondria?
- Powerhouse of the cell
- the mitochondria provides ATP to the cell
What are the 3 Basic structures of a Nucleic Acid?
1. Sugar
2. phosphate group
3. nitrogen base
What are the 4 main functions of lipids?
- store energy long term
- makes up cell membrane
- hormones
- insulator
Why is water polar?
because the oxygen atom is slightly negative and the hydrogen atoms are slightly positive making it so they can attract both charges
What is pH?
pH helps us determine whether a solution is acidic, basic, or neutral.
What is a Chloroplast?
Fatty acid and bonus Glycerol
Do Carbs store energy long term or short term?
Short term
True or False
Water can dissolve EVERYTHING.
False
It can dissolve polar molecules
What does RNA stand for?
Ribonucleic Acid
What is a Ribosome?
- synthesizes protiens
What are Monosaccharides?
- simple sugars
- building blocks for carbs
True or False
A neutral pH is in the range of 6-8
false
extra credit: what is neutral PH?
How can water form dome like shapes when on a surface?
Cohesion
How can you determine if something is an enzyme?
if it has ASE at the end
ex: lipase
What is a Endoplasmic Reticulum?
- internal membrane system
- assembles proteins and lipids
What is the importance of an enzyime?
speed up chemical reaction by:
- breaks molecules apart
- bringing molecules together
Enzymes lower the activation energy of the reaction that needs to take place
Define macromolecule
How does water use Capillary Action?
water moves upwards from plants roots to plants leaves.
Bonus - how does water do this (hint: use the words Cohesion and Adhesion)
What is a Chemical Reaction?
When the reactants are changed into one or more different products