Molecular Biology - All About That H20. (IB)

Question 1 of 20

5

Water's unique properties come down to it's molecular structure. Label this water molecule and its' charges.

Select correct option below corresponding to the highlighted orange point

Oxygen

negatively charged

Hydrogen

Slight positive charge

Covalent Bond

Ionic Bond

Explanation

Question 2 of 20

1

Water has a unique charge causing it to possess strange properties. Among these are...?

Select one or more of the following:

It can dissolve salt
It's solid can float in it's liquid form
It forms hydrogen bonds
It has cohesive properties
It has adhesive properties

Explanation

Question 3 of 20

1

Water molecules are polar and the bonding between the atoms involve the sharing of electrons. These electrons are shared equally.

Select one of the following:

True
False

Explanation

Question 4 of 20

1

Fill the blank space to complete the text.

Having a slight potential charge is called. Being .

Explanation

Question 5 of 20

1

The hydrogen bond in a water molecule is weak.

Select one of the following:

True
False

Explanation

Question 6 of 20

1

❌ is caused by the ❌ nature of ❌ bonding, resisting the penetrating of its' surface.

Select option below to complete the highlighted text

Surface tension

cohesive

adhesive

hydrogen

oxygen

nitrogen

Explanation

Question 7 of 20

1

Select from the dropdown list to complete the text.

Adhesion is defined by the property of "sticking" to ( other polar molecules, itself, nothing ).

Explanation

Question 8 of 20

1

Fill the blank space to complete the text.

Glucose is soluble in water. Therefore it is .

Explanation

Question 9 of 20

1

All lipids are hydrophobic.

Select one of the following:

True
False

Explanation

Question 10 of 20

1

Fill the blank space to complete the text.

Organic substances are defined by having the element present.

Explanation

Question 11 of 20

1

Select from the dropdown list to complete the text.

Water is a good ( solvent, solute ).

Explanation

Question 12 of 20

1

Fill the blank space to complete the text.

Things can float on water because it is .

Explanation

Question 13 of 20

1

Fill the blank spaces to complete the text.

The amount of energy needed to turn liquid water into water vapour (gas), is called: The of .

Explanation

Question 14 of 20

1

Select from the dropdown list to complete the text.

Water is ( slow, fast ) to change temperature.

Explanation

Question 15 of 20

1

Fill the blank spaces to complete the text.

When water freezes, molecules causing less bonds to exist, causing the water to be less therefore ice floats on water.

Explanation

Question 16 of 20

2

Water has...

Select one or more of the following:

A high latent heat of vaporisation
A low latent heat of vaporisation
low viscosity
high viscosity
surface tension

Explanation

Question 17 of 20

1

Not all metabolites are soluble.

Select one of the following:

True
False

Explanation

Question 18 of 20

1

Fill the blank space to complete the text.

Materials with an affinity for water are described as .

Explanation

Question 19 of 20

1

Because water is ❌ to change it's temperature, aquatic environments ❌ exist in cold climates because the ice ❌ to the ❌ of bodies of water. Water also aids in the transport of water in plants by the ❌ vessels as well as the transportation of minerals through the blood, through narrow ❌ in the circulatory system.

Select option below to complete the highlighted text

slow

fast

can

cannot

floats

sinks

tops

bottoms

xylem

phloem

capillaries

arteries

veins

Explanation

Question 20 of 20

1

Water breaks easily under tension.

Select one of the following:

True
False

	Created by Imani :D about 7 years ago

IB preparation for a unit of molecular biology under the sub-heading of water.

Molecular Biology - All About That H20. (IB)

Question 1 of 20

Water's unique properties come down to it's molecular structure. Label this water molecule and its' charges.

Select correct option below corresponding to the highlighted orange point

Explanation

Question 2 of 20

Water has a unique charge causing it to possess strange properties. Among these are...?

Select one or more of the following:

Explanation

Question 3 of 20

Water molecules are polar and the bonding between the atoms involve the sharing of electrons. These electrons are shared equally.

Select one of the following:

Explanation

Question 4 of 20

Fill the blank space to complete the text.

Having a slight potential charge is called. Being .

Explanation

Question 5 of 20

The hydrogen bond in a water molecule is weak.

Select one of the following:

Explanation

Question 6 of 20

❌ is caused by the ❌ nature of ❌ bonding, resisting the penetrating of its' surface.

Select option below to complete the highlighted text

Explanation

Question 7 of 20

Select from the dropdown list to complete the text.

Adhesion is defined by the property of "sticking" to other polar molecules itself nothing( other polar molecules, itself, nothing ).

Explanation

Question 8 of 20

Fill the blank space to complete the text.

Glucose is soluble in water. Therefore it is .

Explanation

Question 9 of 20

All lipids are hydrophobic.

Select one of the following:

Explanation

Question 10 of 20

Fill the blank space to complete the text.

Organic substances are defined by having the element present.

Explanation

Question 11 of 20

Select from the dropdown list to complete the text.

Water is a good solvent solute( solvent, solute ).

Explanation

Question 12 of 20

Fill the blank space to complete the text.

Things can float on water because it is .

Explanation

Question 13 of 20

Fill the blank spaces to complete the text.

The amount of energy needed to turn liquid water into water vapour (gas), is called: The of .

Explanation

Question 14 of 20

Select from the dropdown list to complete the text.

Water is slow fast( slow, fast ) to change temperature.

Explanation

Question 15 of 20

Fill the blank spaces to complete the text.

When water freezes, molecules causing less bonds to exist, causing the water to be less therefore ice floats on water.

Explanation

Question 16 of 20

Water has...

Select one or more of the following:

Explanation

Question 17 of 20

Not all metabolites are soluble.

Select one of the following:

Explanation

Question 18 of 20

Fill the blank space to complete the text.

Materials with an affinity for water are described as .

Explanation

Question 19 of 20

Select option below to complete the highlighted text

Explanation

Question 20 of 20

Water breaks easily under tension.

Select one of the following:

Adhesion is defined by the property of "sticking" to ( other polar molecules, itself, nothing ).

Water is a good ( solvent, solute ).

Water is ( slow, fast ) to change temperature.