CHAPTER 2- The Chemical Basis of Life-Formative Assessment 2019

Which of the following properties of water enables it to move from the roots to the leaves of plants?

• Water expands as it freezes.

• Water is an excellent solvent.

• Water exhibits cohesive behavior.

• Water moderates temperature.

A group of cells that have similar functions? Examples are nervous, epithelial, muscle and connective

• cells

• tissues

• organs

• atoms

The type of compound that contains carbon atoms bonded to other carbon atoms

• carbon
• organic
• molecule
• macromolecule

Water is the most abundant molecule found in living organisms.  Most mammals, in fact are approximately 70% water by weight.  About two-thirds of this water is present inside cells.  The other one-third is present outside cells (e.g., in blood plasma or other body fluids).  Why is water so important to cells?

• Water is stored in the cells to be used when the organism gets thirsty.
• Almost all the chemical reactions in life processes occur in solutions with water.
• Water determines which proteins are translated from the cellular DNA.
• The main structural component found in plasma membranes and cell walls is water.

Tags

NGSS.HS-LS2-3

Protein molecules are composed of long chains of __________ .

• ribosomes
• RNA
• amino acids
• DNA

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NGSS.HS-LS1-6

The main effect that water has on climate is that extreme temperatures ____________ occur in cities near large bodies of water, because water heats up and cools down very slowly.

• never
• most often
• are more likely to
• are less likely to

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NGSS.HS-ESS2-4

What is the most abundant chemical found in living cells?

• carbohydrates
• water
• proteins
• nucleic acids

These organic molecules are used by the body to store and release energy.

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Which is not a use or function of protein?

• forms enzymes and hormones
• forms transport channel in cell membrane
• forms structural proteins in the body
• quick energy

Proteins are made of monomers called ___________

• Nucleotides
• Monosaccharides
• Amino Acids
• Glycerol and fatty acids

Tags

NGSS.HS-LS1-6