Stemscopes Cells

What is a term for any living thing?

• Organism

• Prokaryotic

• Eukaryotic

• Unicellular

Answer explanation

The term 'organism' refers to any living thing, encompassing all forms of life. The other options, such as prokaryotic and eukaryotic, describe specific types of organisms, while unicellular refers to organisms made of a single cell.

What is the basic building block of life?

• Cells

• Organisms

• Organelles

• Humans

Answer explanation

The basic building block of life is cells. They are the smallest units that can carry out all life processes, making them fundamental to the structure and function of all living organisms.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

What is the term for "made of one cell"?

• Multicellular

• Prokaryotic

• Eukaryotic

• Unicellular

Answer explanation

The term "unicellular" refers to organisms made of a single cell. In contrast, "multicellular" refers to those made of multiple cells, while "prokaryotic" and "eukaryotic" describe cell types, not cell number.

Tags

NGSS.MS-LS1-1

What is the word that means "made of more than one cell"?

• prokaryotic

• organism

• multicellular

• unicellular

Answer explanation

The term "multicellular" specifically refers to organisms that are composed of more than one cell. In contrast, "unicellular" describes single-celled organisms, while "prokaryotic" refers to a type of cell structure.

Tags

NGSS.MS-LS1-1

Which entity carries out specialized jobs within the cell?

• Cell organs

• Organelles

• Cells

• Living things

Answer explanation

Organelles are specialized structures within a cell that perform distinct functions, such as energy production and protein synthesis. They are essential for the cell's overall operation, unlike the broader terms like cells or living things.

Tags

NGSS.MS-LS1-2

Which of the following does not have a nucleus or membrane-bound organelles?

• Humans

• Eukaryotic organisms

• Prokaryotic organisms

• Organelles

Answer explanation

Prokaryotic organisms, such as bacteria, lack a nucleus and membrane-bound organelles, distinguishing them from eukaryotic organisms, which do have these structures. Therefore, the correct answer is prokaryotic organisms.

Which of the following has a nucleus and membrane-bound organelles?

• Prokaryotic

• Eukaryotic

• Organism

• Unicellular

Answer explanation

Eukaryotic cells are characterized by having a nucleus and membrane-bound organelles, unlike prokaryotic cells, which lack these features. Therefore, the correct answer is Eukaryotic.

Which of the following is not part of the cell theory?

• All living things are made of cells.

• All nonliving things are made of cells.

• Cells are the basic units of life.

• All cells come from pre-existing cells.

Answer explanation

The statement 'All nonliving things are made of cells' is incorrect. Cell theory states that all living things are made of cells, not nonliving things, which do not consist of cells.

Which of the following is NOT a characteristic of living things?

• Made of cells

• Reproduce and grow

• Cannot evolve

• Has a metabolism

Answer explanation

The correct choice is 'Cannot evolve' because all living things have the ability to evolve over time. The other options—being made of cells, reproducing, and having metabolism—are essential characteristics of life.

Which of the following is a characteristic of non-living things?

• Made of cells

• Can reproduce and grow

• Cannot evolve

• Has a metabolism

Answer explanation

Non-living things cannot evolve, as evolution requires reproduction and adaptation over generations. In contrast, living things are made of cells, can reproduce, and have metabolism.