Cells Unit Test

What term describes the smallest unit that can perform all of the functions necessary for life?

• a single cell

• a cell nucleus

• a cell membrane

• a multicellular organism

Tags

NGSS.MS-LS1-1

All living things are made of one or more cells. Which is true of all cells?

• They all have cytoplasm.

• They all have DNA in their nucleus.

• They all have DNA in their cytoplasm.

• They all have organelles bound by membrane.

Tags

NGSS.MS-LS1-2

In one type of cell division, a cell that is part of the body of an organism divides to form two cells. What is a reason that human skin cells frequently divide?

• to get energy for the body

• to create new muscle cells

• to prevent bruises on the body

• to replace dead or damaged skin cells

Robert Hook was the first person to describe cells. Which of these instruments did he use to make his observations?

• bifocals

• microscope

• light prism

• magnifying glass

During a class investigation on cells, students observed different cell types using a compound light microscope and prepared slides. An ​ (a)   is a ​ (b)   that has an outermost rigid cell wall and a large vacuole. They appear brick-like in shape. On the other hand, a ​ (c)   is an ​ (d)   having a rounded structure but lacking a cell wall.

• onion cell

• plant cell

• human cheek cell

• animal cell

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

In which location does the exchange of materials in and out of a cell take place?

• nucleus

• chloroplast

• chromosome

• cell membrane

Tags

NGSS.MS-LS1-2

Which structure captures and stores the sun's energy in plant cells?

• chloroplast

• mitochondria

• Golgi apparatus

• endoplasmic reticulum

Tags

NGSS.MS-LS1-6

What is the main function of chloroplasts in a plant cell?

• They produce proteins.

• They store water and food.

• They perform photosynthesis.

• They protect cells from the surrounding environment.

Tags

NGSS.MS-LS1-6

Cells must be able to perform certain functions in order to survive. Which action must all cells do to survive?

• absorb wastes

• obtain energy

• utilize oxygen

• continue growing

Tags

NGSS.MS-LS1-6

What type of cell has membrane-bound organelles?

• eukaryotic cells

• prokaryotic cells

• both prokaryotic and eukaryotic cells

• neither prokaryotic nor eukaryotic cells