Unit 2 Review Living Environment Practice

Most of the starch stored in the cells of a potato is composed of molecules that originally entered the cell as

• enzymes

• simple sugars

• amino acids

• minerals

Tags

NGSS.MS-LS1-7

Plants in areas with short growing seasons often have more chloroplasts in their cells than plants in areas with longer growing seasons. Compared to plants in areas with longer growing seasons, plants in areas with shorter growing seasons most likely

• make and store food more quickly

• have a higher rate of protein metabolism

• grow taller

• have a different method of respiration

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

The largest amount of DNA (genetic information) in a plant cell is contained in

• the nucleus

• all protein molecules

• the vacuole

• the mitochondria

The mitochondria is responsible for

• making food for the cell

• controlling the cell, like a brain

• acting like a gate keeper

• producing ATP energy by breaking down food (glucose)

Tags

NGSS.HS-LS1-7

Which organelle is correctly paired with its specific function

• cell membrane—storage of hereditary information

• chloroplast—transport of materials

• ribosome—synthesis of proteins

• vacuole—production of ATP

A red onion cell has undergone a change, as represented in the diagram below. This change is most likely due to the cell being placed in

• plain tap water

• salt water

• light

• darkness

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-5

The diagram below represents a laboratory setup used by a student during an investigation of diffusion. Which statement best explains why the liquid in tube A will rise over a period of time?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-5

A student fills a dialysis membrane bag with a mixture of red dye, yellow dye, and water. He soaks the bag in pure water for 24 hours and then observes that the water outside the bag turns yellow. Which statement best explains the results of this experiment?

• Water diffused into the membrane bag.

• The dialysis membrane actively transported yellow dye molecules

• Only red dye diffused through the membrane

• The yellow dye molecules are smaller than the red dye molecules.

An enzyme known as rubisco enables plants to use large amounts of carbon dioxide. This enzyme is most likely active in the

• nucleus

• vacuoles

• mitochondria

• chloroplast

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

In the transfer of energy from the Sun to ecosystems, which molecule is one of the first to store this energy?

• protein

• DNA

• lipids

• glucose

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5