A water strider can skate along the top of a pond because:

hydrogen bonds result in water cohesion (surface tension)

covalent bonds result in water cohesion

water striders have adapted to take advantage of water cohesion

Why does water move from the roots to the leaves of plants?

Capillary action pulls the water molecules like a chain

Water’s cohesion causes it to “pull” towards the leaves

Water is polar because...

The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.

The molecule has two poles, at which the it is colder than other regions of the molecule.

The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.

An enzyme acts as a catalyst to a chemical reaction by

lowering the activation energy needed to get the reaction started.

making one of the substrates needed for the reaction.

regulating the temperature at which the reaction takes place.

regulating the pH at which the reaction takes place.

Prentice Hall Biology Chapter 2 Test

Quiz

•

Biology

•

KG - University

•

Practice Problem

•

Medium

•

NGSS

HS-LS1-6, MS-PS1-2, MS-PS1-1

+5

Standards-aligned

Demetra Payne

Used 214+ times

FREE Resource

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Proteins are made of monomers called ___________

Nucleotides

Monosaccharides

Amino Acids

Glycerol and fatty acids

The element _______is found in all of the organic compounds.

Iron

Nitrogen

Carbon

Oxygen

The polymer of monosaccharides are called ____________

Glycerol and fatty acids

Nucleotides

Amino Acids

Polysaccharides

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_________ are composed out of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P)

Carbohydrates

Lipids

Proteins

Nucleic Acids

DNA and RNA are examples of

Carbohydrates

Lipids

Proteins

Nucleic Acids

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Waxes, oils and fats are examples of

Carbohydrates

Lipids

Proteins

Nucleic Acids

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sugars, starches and chitin are examples of

Carbohydrates

Lipids

Proteins

Nucleic Acids

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Prentice Hall Biology Chapter 2 Test

31 questions

Proteins are made of monomers called ___________

The element _______is found in all of the organic compounds.

The polymer of monosaccharides are called ____________

_________ are composed out of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P)

DNA and RNA are examples of

Waxes, oils and fats are examples of

Sugars, starches and chitin are examples of

Glycerol and fatty acids are the monomers of

Which is an example of a protein?

Which macromolecule is shown?

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