Surprise biolody
Random Biology
Biology
Extra Biology
Super biology
100
What are polymers?

A chain of monomers which are small molecules.

100

Are phospholipids hydrophilic or hydrophobic?

They are amphipathic. Hydrophilic head and a hydrophobic tail.

100
What are valence electrons?

Electrons on the outer most shell of an atom.

100

What do atoms consist of?

Protons, Neutrons, and Electrons

100

What are the nucleotides?

DNA, RNA, ATP(Adenosine 5′-triphosphate), cAMP (Cyclic Adenosine Monophosphate)

200

weight of an element on the periodic table

Atomic mass

200

Why are lipids hydrophobic?

Because they are non-polar and are only attracted to other non-polar molecules. Water is a polar molecules. They also don't have a charge.

200

What is the hydrogen bond?

When water molecules are attracted to one another.
200

What do phospholipids do if put in water?

The heads will be attracted to water and the tails will try to shield itself from water, this creates a bilayer. There is no chemical reaction. 

200

What's dehydration reaction?

When 2 molecules combine to form a larger molecule and results in the loss of water. 

300

Difference between covalent and ionic bonds?

Covalent bonds - share electrons. Ionic bonds - Atom gives electron(s) to another element

300
What's a pyrophosphate and why is it important when it comes to a phosphodiester bond?

What is 2 phosphates group that break off from a nucleotide, and leave behind 1 phosphate group that now has enough energy to form a bond with the hydroxyl group in a growing DNA/RNA chain.

300

Factors that can affect enzyme activity

pH, temperature, salt, inhibitors(competitive and non-competative_, enzyme activators, cleaving an enzyme, and covalent bonds.

300

Nucleotides found in DNA

adenine, thymine, guanine and cytosine

300

This nucleic acid is single-stranded, contains the bases A, U, G, and C, and is needed for protein synthesis

RNA

400

Non-competitive inhibitor that attaches to enzyme?

allosteric molecule

400

How do you know if an atom is very electronegative?

On a periodic table, if you move from left to right the electronegativity increase and if you move down, it'll decrease. Usually if they're closer to having 8 valence electrons, electronegativity increases.
400

fat or fatty acid in which there is at least one double bond with the fatty acid chain

unsaturated fats

400

Area where a substrate interacts with an enzyme

Active site

400

amount of energy needed to start a chemical reaction is known as

activation energy

500

What are the dehydration bonds called? 

Peptide bond, Glycosidic Linkages, Ester Linkages, Phosphodiester

500

Adding acid to a solution does what to the pH?

It decreases the pH and increases the (H+)

500

What properties of water make life possible?

Solvent properties, high heat capacity, high surface tension, adhesiveness, cohesiveness and ability to dissolve polar molecules.

500

What are hydroxyl, carbonyl, carboxyl, and amino groups?

Hydroxyl = -OH 

Carbonyl = C=O

Carboxyl = -COOH

Amino = -NH2

500

Enzymes are _____ that facilitate the chemical reactions needed for cellular work

Proteins