U3 Test Review Science

The basic structural and functional unit of all living organisms.

Deoxyribonucleic acid; the molecule that carries genetic instructions for life.

A change in the environment that causes a response in an organism.

The process by which organisms maintain a stable internal environment.

All chemical reactions that occur within an organism to maintain life.

Reproduction without the fusion of gametes, producing genetically identical offspring.

Reproduction involving the fusion of male and female gametes, creating genetic diversity.

The scientific theory stating that all living things are made of cells, cells are the basic unit of life, and all cells come from pre-existing cells.

A simple cell without a nucleus or membrane — bound organelles.

A complex cell with a nucleus and membrane-bound organelles.

The organelle that contains the cell’s DNA and controls cell activities.

Organelles that produce energy (ATP) through cellular respiration.

The jelly-like substance inside the cell where organelles are suspended.

A rigid outer layer found in plant cells that provides support and protection.

The semi-permeable membrane surrounding the cell, controlling what enters and leaves.

A structure inside the Nucleus where ribosomes are made.

Organelles that synthesize proteins.

A network of membranes involved in protein and lipid synthesis; rough ER has ribosomes, smooth ER does not.

An organelle that modifies, sorts, and packages proteins and lipids for transport.

Organelles containing enzymes that digest waste material and cellular debris.

Storage organelles that can hold water, nutrients, or water; large central vacuole found in plant cells.

Organelles in plant cells that carry out photosynthesis

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

The movement of molecules across a membrane, using energy, usually against the concentration gradient.