NC Biology Goal 4

A contractile vacuole helps protists eliminate excess liquid. This is a "pumping" process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process?

• DNA

• lipids

• ATP

• ribosomes

Tags

NGSS.MS-LS1-6

This diagram shows a Paramecium, a unicellular protist. When a chemical is added to the pond water in which the Paramecium lives, the Paramecium stops moving. Which structure is most likely affected?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

During translation, what does the tRNA deliver to the ribosomes?

• amino acids

• DNA

• mRNA

• proteins

Nucleic acids

• Proteins

• Carbohydrates

• Lipids

• DNA and RNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Which biomolecules contains your genetic information?

• Proteins

• Lipids

• Carbohydrates

• Nucleic Acids

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An example of a nucleic acid is

• amino acid

• DNA

• sugar

• wax

DNA and RNA are examples of 

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

DNA belongs to which class of macromolecules?

• proteins

• nucleic acids

• carbohydrates

• lipids

Which will most likely cause an increase in the frequency of genetic mutations in humans?

• increased exposure to mold spores in the air

• increased exposure to rising levels of atmospheric CO₂

• increased exposure to bacteria in drinking water

• increased exposure to X-rays

Tags

NGSS.HS-LS3-2

Which molecules are joined together to make proteins?

• fatty acids

• nucleic acids

• amino acids

• acetic acids

Tags

NGSS.HS-LS1-1