Unit 2: Cells and Macromolecules

Which list correctly ranks structures by size from smallest to largest?

• organism ,organ system, organ, tissue, cell

• cell, tissue, organ, organ system, organism

Which of the following are true according to Endosymbiotic theory? (More than 1 answer.)

• Prokaryotic cells don't have DNA

• Eukaryotic cells existed first.

• Eukaryotic cells evolved from prokaryotic cells

• Chloroplasts evolved from photosynthetic bacteria.

Which of the following statements is true?

• Both species and individuals adapt and evolve.

• Individuals adapt and evolve with species adjust.

• Individuals adjust while species adapt and evolve.

Which of the following is reusable?

• the enzyme

• the substrate

• both the enzyme and substrate

• neither the enzyme and substrate

A good analogy for an enzyme is a "lock and key" because enzymes

• unlock proteins

• have specific shapes

• lock substrates to products

A source of short term energy is

• proteins

• carbohydrates

• lipids

• nucleic acides

What stores genetic information?

• proteins

• lipids

• nucleic acids

• carbohydrates

What stores long term energy?

• lipids

• proteins

• carbohydrates

• nucleic acid

Nuts would be an example of which biomolecule?

• carbohydrates

• lipids

• nucleic acids

• proteins

Oils, butters and fats belong to which biomolecule?

• carbohydrates

• proteins

• lipids

• nucleic acids