Chemistry of LIfe

basic unit of matter

• proton

• atom

• neutron

• electron

Any compound that removes H+ ions to an aqueous solution and measures more than 7 on the pH scale:

• Base

• Solvent

• Acid

• Solute

The ability of water molecules to stick together is called:

• Adhesion

• Cohesion

• Transpiration

• Solvency

Tags

NGSS.MS-ESS2-4

Water is polar because:

• The molecule has two poles, at which it is colder than the other regions of the molecule.

• The water molecule is neutral

• The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. 

• The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.

Any compound that donates H+ ions to an aqueous solution and measures less than 7 on the pH scale:

• Acid

• Base

• Solvent

• Solute

Which of the following is a function of a carbohydrate?

• provides genetic information

• Supports the body in building structures necessary for survival

• Provides short term energy to the body

• Gives the body instructions for how to build our body's structures

Tags

NGSS.MS-LS1-7

A scientist is analyzing different biomolecule structures. They notice an influx of Phosphorus. Which biomolecule are they looking at?

• Lipids

• Protein

• Carbohydrate

• Nucleic Acid

_{What particle is found in the nucleus and has no charge?}

• electron
• neutron
• proton
• atom

Tags

NGSS.MS-PS1-1

The 4 macromolecules are

• vitamins, lipids, water, micronutrients
• micronutrients, macronutrients, water, vitamins
• Lipids, Waxes, Vitamin A, Water
• Carbohydrates, Lipids, Proteins, Nucleic Acids

Which biomolecule is made of nucleotides and contain you DNA?

• Carbohydrate
• Lipids
• Protein
• Nucleic Acid

Tags

NGSS.MS-LS3-1