What is a cell?
The basic structural and functional unit of all living organisms.
What is the cell membrane?
A protective barrier that surrounds the cell, controlling what enters and leaves.
What is cytoplasm?
The jelly-like substance inside the cell where organelles are suspended.
What is the nucleus?
The organelle that contains DNA and controls cell activities.
What is DNA?
the molecule that carries genetic information.
What are ribosomes?
Small structures where proteins are synthesized.
What is the mitochondria?
The powerhouse of the cell, providing energy through respiration.
What is the cell wall?
A rigid outer layer found in plant cells that provides structure and protection.
What is chloroplast?
An organelle found in plant cells that conducts photosynthesis.
What is osmosis?
The movement of water from dilute to more concentrated solution, across a partially permeable membrane.
What is diffusion?
The movement of particles from an area of high concentration to an area of low concentration.
What is active transport?
The movement of molecules across a membrane against the concentration gradient, using energy from respiration.
What is homeostasis?
The maintenance of a stable internal environment in an organism.
What is a prokaryotic cell?
A simple cell without a nucleus, such as bacteria.
What is a eukaryotic cell?
A complex cell with a nucleus, found in plants and animals.
What are stem cells?
Undifferentiated cells that can develop into various cell types.
What is mitosis?
The process by which a cell divides its nucleus and genetic material.
What is meiosis?
The process of cell division that produces gametes for sexual reproduction.
What are organelles?
Specialized structures within a cell that perform distinct functions.
What is cancer?
Uncontrolled cell growth and division, leading to tumors or spread in the body.
What is cellular respiration?
The process by which cells convert glucose and oxygen into energy.