Living Environment Regents Review Questions 1

Front

What is total magnification of a microscope on high power (40x) if the eyepiece is 10x?

Back

400x

Front

What process allows molecules small enough to pass through the pores of cell membranes to leave the digestive system and enter the blood?

Back

Diffusion

Front

Why does a small lizard lie in sunlight and then move to a shady area?

Back

To maintain homeostasis.

Front

What direction does a microscope turn the object you are viewing?

Back

Backwards and upside down.

Front

What is the role of the cell membrane?

Back

To control the movement of substances in and out of the cell.

Tags

NGSS.MS-LS1-2

Front

Define diffusion.

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is homeostasis?

Back

The process by which living organisms regulate their internal environment to maintain stable, constant conditions.

Tags

NGSS.HS-LS1-3

Front

What is the function of the eyepiece in a microscope?

Back

To magnify the image of the specimen.

Front

What is active transport?

Back

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Tags

NGSS.HS-LS2-3

Front

What is the difference between diffusion and active transport?

Back

Diffusion is passive and does not require energy, while active transport requires energy to move substances against their concentration gradient.