The Chemical Building Blocks of Life

Which is FALSE?

• simple sugars are monosaccharides.

• DNA is made up of nucleotides.

• Proteins are made of amino acids.

• Monomers are made of polymers.

Some proteins are catalysts in chemical reactions, meaning they speed them up. What are these proteins called?

• monomers

• enzymes

• quickens

• neutrons

Which is NOT a function of proteins?

• They provide a hydrophobic membrane

• They act as antibodies in the immune system

• They make-up structures such as muscles

• They regulate cell processes by helping to speed up chemical reactions (enzymes)

A protein denatures when

• temperature rises above functional level

• it is placed in an environment with a pH outside of its normal range

• when placed in its normal environmental conditions

Which of the following macromolecules is hydrophobic (repels water), and so makes them perfect for forming membranes.

• lipids

• carbs

• proteins

• nucleic acids

This macromolecule provides the genetic code to pass on to offspring and the template to make proteins.

• carbs

• lipids

• proteins

• nucleic acids

Many amino acids bonded together makes up a

• polysaccharide

• disaccharide

• polypeptide

• monomer

Which element below is found in all biomacromolecules?

• carbon

• nitrogen

• phosphorous

• sulfur

Which sub atomic particle is found in the shell?

• Protons

• Electrons

• Neutrons

• None of the above

A group of organic molecules that includes sugars, starch, and cellulose care called...

• proteins
• carbohydrates
• nucleic acids
• lipids