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BONDING
Parts of the Atom
Chemistry
Bio-Chemistry
More Bio
100
THIS TYPE OF BONDING IS FORMED WHEN ATOMS SHARE ONE OR MORE ELECTRONS.
What is covalent bonds?
100
A nucleus---
What is the central core of an atom?
100
Atoms in a solid---
What is are fixed in space but vibrate in place?
100
Water helps keep the temperature of living things----
What is stable?
100
The element that readily bonds to itself, forming long chains and rings, is
What is carbon?
200
An oxygen atom has six electrons in the outermost energy level. Explain what happens when two oxygen atoms bonds by covalent bond.
What is they share four electrons?
200
Is located floating around the outside the nucleus and have a negative charge---
What are electrons?
200
The amount of energy required for chemical reaction to begin is called---
What is activation energy?
200
Steroids differ from other lipid polymers in that polyers in sterioids----
What is are not composed of fatty-acids monomers?
200
Most enzymes are---
What are proteins?
300
Define ionic bond.
What is a bond formed by electrical attraction between two oppositely charged ions?
300
The nucleus of an atom is made up of---
What are protons and neutrons?
300
In a reduction reaction, an atom gains a(n)---
What is an electron?
300
Isomers are----
What are molecules with the same chemical formula but different shapes?
300
What happens when two amino acids bond----
What is a dipeptide is formed through a condensation reaction?
400
The following model is an example of
What is ionic bond
400
If an atom is made up of 6 protons, 7 neutrons, and 6 electrons, then the atomic number is---
What is 6?
400
An aqueous solution that contain more hydroxide ions than hydronium ions is a(n)---
What is an alkaline or a base?
400
Alcohols and water share what properties----
What are alcohols and water are polar compounds and thus have some similar properties, such as the ability to form hydrogen bonds?
400
Lipids are distinguished from other organic molecules----
What is because they do not dissolve in water?
500
In the following picture, what type of bonding is shown?
What is covalent?
500
The way in which elements bond to form compounds depends on the----
What is the number and arrangement of electrons in the atom of the elements?
500
If stomach acid has a pH of 2 than it is considered----
What is a strong acid?
500
The parts of the following nucleotide is---
What are (a) phosphate, (b) nitrogen base, (c) sugar
500
The structural role that phospholipids play in cells are---
What is they are part of the cell membrane.