Cell Membrane Basic
This term describes the cell membrane's ability to let some substances pass while blocking others.
Selectively Permeable
The type of diffusion that moves water across the membrane.
Osmosis
The organelle known as the "control center" of the cell.
Nucleus
Which type of cell has a cell wall?
Cell Wall
What is the jelly-like substance inside the cell that surrounds and supports organelles?
Cytoplasm
The two main components of the phospholipid bilayer.
phosphate heads and fatty acid tails
Movement of particles from high to low concentration without energy is called this.
Passive Transpot
This organelle creates energy (ATP) for the cell.
Mitochondria
What organelle is large in plant cells but small or absent in animal cells?
Vacuole
Which organelle is known as the "powerhouse of the cell"?
Mitochondria
This component helps stabilize the membrane's structure in animal cells.
Cholesterol
The process in which the cell membrane surrounds and engulfs substances.
Endocytosis
In plants, this organelle converts sunlight into glucose.
Chloroplast
What structures aid in cell movement and are found in both prokaryotic and eukaryotic cells?
Cilia and flagella.
What cell structure provides internal support and helps maintain the cell's shape?
Cytoskeleton
The term for maintaining a steady internal environment.
Homeostasis
Transport that requires ATP to move substances against the concentration gradient.
Active transport
These organelles digest old cell parts and foreign invaders.
Lysosomes
What is a key difference in vacuoles between plant and animal cells?
Plant cells have one large central vacuole, while animal cells have small or no vacuoles.
What structure in the cell acts as the "post office," packaging and modifying proteins for transport?
Glogi apparatus
These proteins carry molecules across the cell membrane without energy.
Transpot Proteins
The release of substances from the cell using vesicles.
Exocytosis
The structure that packages proteins for export.
Golgi apparatus
How can you differentiate between an animal and a plant cell under a microscope?
Plant cells have a cell wall, chloroplasts, and a large vacuole, while animal cells have centrioles and no cell wall.
What structure in the cell acts as a "highway," transporting proteins and lipids?
Endoplasmic Reticulum (ER).