7th grade Ch.2 test flashcard review

Front

Which lab instrument helps us see very small things?

Back

Microscope

Front

Who developed the first microscope after observing small openings in cork?

Back

Robert Hooke

Front

What is the smallest unit of life?

Back

A cell.

Front

Nucleic acids form when long chains of molecules called nucleotides join.

Back

nucleotides

Front

What is the primary function of nucleic acids in cells?

Back

To store and transmit genetic information.

Front

Long chains of molecules called macromolecules are part of the organelles that make up a cell. There are 4 types of macromolecules:

Back

Nucleic Acids - store genetic information

Proteins - long chains of amino acids

Carbohydrates - sugar molecules

Lipids - not water soluble

Front

The cell is surrounded by a protective layer called the

Back

cell membrane

Front

All cells can be grouped into two types of cells.

Back

1. Prokaryotic - genetic material not surrounded by a membrane; unicellular.

2. Eukaryotic - you and me, multicellular organisms containing specialized organelles.

Front

Organelle that contains genetic information

Back

Nucleus

Front

The organelle known as the powerhouse of the cell - ATP

Back

Mitochondria

(mighty mitochondria)