EOC Review 1 Apr 20

This cell produces oxygen.

Which structure allows passage of this oxygen to the environment?

• A

• B

• C

• D

Answer explanation

The cell membrane controls transport in and out of the cell.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

The diagram represents a cell and several molecules. The number of molecules shown represents the relative concentration of molecules inside and outside of the cell.

Molecule B could enter the cell as a direct result of

• digestion

• diffusion

• active transport

• enzyme production

Answer explanation

The concentration of B is higher on the inside of the cell. Low -> high is active transport.

Tags

NGSS.MS-LS1-2

Which two terms are considered to be opposite processes?

• Photosynthesis and autotrophic nutrition

• Cloning and mitosis

• Photosynthesis and cellular respiration

• Diffusion and passive transport

Answer explanation

Photosynthesis and respiration have opposite reactants and products.

Tags

NGSS.HS-LS2-5

Which sequence correctly represents the arrangement of structures containing genetic material, from the largest to the smallest size?

• Chromosome -> gene -> nucleus

• Nucleus -> chromosome -> gene

• gene -> chromosome -> nucleus

• gene -> nucleus -> chromosome

Answer explanation

Genes are located on chromosomes, which are in the nucleus of eukaryotic cells.

Tags

NGSS.MS-LS3-1

The way a protein molecule is folded determines the shape of the molecule, which determines the

• function of that protein

• structure of ATP containing that protein

• Type of simple sugars in that protein

• Amino acids in that protein

Tags

NGSS.HS-LS1-1

Which molecule is paired with its correct role in protein synthesis?

• nucleus - forms peptide bonds

• ribosome - carries DNA instructions

• mRNA - joins amino acids

• tRNA - transfers amino acids

Answer explanation

mRNA carries the instructions from the DNA to the ribosome.

A pictoral chart of five cichlid species of fish is shown below.

The physical differences among the fish are most likely

• A feeding adaptation due to competition for food

• A swimming adaptation due to water temperature

• An osmotic adaptation due to salinity levels

• A respiration adaptation due to different oxygen levels

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

An inventor has an idea for a pest control product for farms. The inventor proceeds to build and market the product. Which step in the engineering design process has the inventor neglected to do?

• Identify a need

• Define the problem

• Narrow the research

• Verify the results

Tags

NGSS.MS-ETS1-1

An energy pyramid is shown below.

Which organism receives the least amount of energy from the producer?

• Whales

• Seals

• Herring

• Krill

Tags

NGSS.MS-LS2-3

The pictures show the limbs of four different species.

The four species illustrated most likely have similar limb structures because they all

• share a common ancestor

• use their limbs for the same functions

• occupy the same level in a food pyramid

• adapted to the same environmental conditions

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3