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Topic 1 Molecules and Macromolecules

Authored by Roni Wright

Science

University

Used 224+ times

Topic 1 Molecules and Macromolecules
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13 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Amino Acids are the building blocks of what macromolecule?

DNA

Proteins

Cellulose

Chromatin

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Atomic number (Z) is :

Number of protons minus the number of electrons

The number of protons = number electrons

Number of protons plus neutrons

Total number electrons, protons and neutrons

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

When outershells are entirely filled, atoms are ....

Unstable

Stable

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

The most common elements in living organisms are:

Na, Ca, C, O

N, O Ca, S

C, H, N, O

C, H, Na, O

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Which one is not an example of INTERmlecular forces

Hydrogen bond

Hydrophobic interaction

Van der Waals interaction

Covalent bonding

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

A covalent bond is formed when.....

Electrons are passed from one atom to another

Electrons form a delocalised swarm around atoms

Electrons are shared between 2 atoms

Electrons are lost from both atoms

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

How many electrons share a triple bond?

2

4

6

8

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