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Bio revision
Bio revision
30 terms
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Nursing year one
Flashcards
30 cards
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Practice quiz
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Host live
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Questions
30
Answers
1
Four main macromolecules contain Carbon as the backbone?
False
True
2
Monosaccharides a simple sugar?
False
True
3
Noble gases have a full outer electrons shell, which makes: He, Ne, Ar, Kr, Xe and Rn elements non-reactive?
True
False
4
Covalent bonds are formed?
Borrowing electrons
Sharing electrons
Gain and lose electrons
Stealing electrons
5
An ion carries an electrical charge of
A cation is negative charged ion
An anion is a negatively charged ion
A cation positively charged ion
An anion is a positively charged ion
6
Ionic bonds are formed?
Borrowing electrons
Stealing electrons
Sharing electrons
Gain and lose electrons
7
A compound is a substance that forms when two or more different atoms bond?
False
True
8
Type of polysaccharides
All above
Animal starch
Plan starch
Cellulose
9
Polymer is?
Molecules join together can break down into polymer
None of above
A molecule made by joining together can break down into monomers
A small molecule called particle
10
H-H bonding forms?
Single covalent bond producing a non- polar molecule
Double covalent bonds with polar molecule
Single covalent bond producing polar molecule
Double covalent bond with non- polar molecule
11
Who have the most water on the body?
Nursing students
Boys
Toddler
Pregnant women
12
Molecule is a substance formed by two or more atoms?
False
True
13
What is chemistry?
The study of chemicals
The study of elements
The study of molecules
The study of matter
14
What is the configuration of the electron outer shell?
2,8,7
2,8,8
2,6,8
2,4,6
15
4 elements that make up 96% of the body weight?
Carbon, Hydrogen, Lithium + nitrogen
Carbon, Oxygen, Hydrogen + Nitrogen
Oxygen, Carbon, gold, Hydrogen
Oxygen, Hydrogen, Magnesium + Nitrogen
16
Hydrogen bonds are?
Domesticmolecular bonds
Intermolecularbonds
None of above
Extermolecular bonds
17
What is most abundant compound in the body?
Salt
Oxygen
Blood
Water
18
Elements is?
Substance two or more which can bond with others
Substance that cannot be broken down into simpler form
None of above
Substance that can be broken down into simpler form
19
What is the function of starch?
None of above
Product milk
Long term energry
Most impt ATP Source; dextrose
20
What is a mixture?
Three or lass substances mix together
The substance or two or more can be separate
Substances three or less cannot be separate
Two or more substances mixed together
21
Main macromolecules in our body
Nitrogen, Oxygen
Carbohydrates, protein
Lipids or fat, nucleic Acids
All above
22
Example of compounds
Oxygen
Blood
Water
Salt
23
What is an atom?
All above
Building blocks of matter
Made up of three subatomic called protons, neutrons +electrons
Everything in the universe
24
Disaccharides are double sugar?
True
False
25
Best 2 answers to describe matter?
Anything that occupies space + has weight
Exists in three states: solid, liquid + gas
Have a negative charge
Composed of protons, neutrons + electron
26
Normal healthy rate of Oxygen in human body
95%
85-94%
<95%
89%
27
Sodium ions has a charge?
+1
-1
-2
+2
28
What is not Alkali (group 1 element)?
Li and Na
Cs and Fr
Neon
K and Rb
29
1g of starch = how many calories?
4
5
2
3
30
Water (H2O) form the bond between 1H and Oxygen is?
Hydrogen bond
Ionic bond
Single covalent bond producing polar molecule
Nonpolar bond
