Polar Molecules
The definition of a polar molecule is this.
What is a molecule with an uneven distribution of electrical charge?
The definition of diffusion is this.
What is the movement of particles from an area of high concentration to an area of low concentration?
A disaccharide is made out of this.
What are two sugars?
This molecule is made of a sugar, a phosphate group, and a nitrogenous base.
What is a nucleotide?
Carbon is often the backbone of biomolecules because of this.
What is that it can make 4 bonds?
This end of a water molecule has a partial negative charge.
What is the oxygen end?
Increasing the temperature makes particles move this way.
What is faster?
The building block of a protein is this.
What is an amino acids?
This type of lipid has no double bonds.
What is saturated?
This is the specific region of an enzyme where the substrate binds.
What is the active site?
Water molecules stick to each other because of this property.
What is cohesion?
A concentration gradient is described at this.
What is steep?
This protein helps speed up chemical reactions in cells.
What is an enzyme?
These two nucleic acids carry genetic information.
What are DNA and RNA?
This is the bond that forms between amino acids.
What is a peptide bond?
The attraction between the partially positive hydrogen of one water molecule and the partially negative oxygen of another is called this.
What is a hydrogen bond?
The random movement of particles caused by collisions with surrounding particles is called this.
What is Brownian motion?
The polysaccharide responsible for energy in plants is this.
What is starch?
The functions of a lipid include long-term energy storage, cushioning organs, and this.
What is insulation?
Many substances dissolve in water because it is this.
What is polar?
Water moves from the roots to the leaves of plants because of this.
What is capillary action?
A student sprays air freshener in one corner of a classroom. Eventually, students across the room can smell it. Explain why.
Air freshener particles move randomly and spread from an area of high concentration to areas of lower concentration.
The chemical formula for a single sugar molecule is this?
What is C6H12O6?
Explain how the buildup of cholesterol and other substances in an artery can eventually cause a heart attack
Plaque builds up inside the artery, narrowing it. If the plaque ruptures, a blood clot can form and block blood flow to the heart muscle, depriving it of oxygen.
A student joins two amino acids to form a larger molecule. What happens to the atoms that form water during this reaction?
An –OH group from one amino acid and an –H from the other combine to form water.