Discovering Cells & Their Environment
An instrument that makes small objects look larger.
Microscope
A rigid layer that surrounds plant cells.
Cell Wall
Any substance that cannot be broken down into a similar substance.
Element
___ organisms are made of one cell.
Unicellular
Who was the king of the gods in Greek mythology?
Zeus
The basic units of structure and function in living things.
Cell
This surrounds cells and determines what can enter and exit the cell.
Cell Membrane
Two or more elements combined chemically.
Compound
_____ organisms have more than one cell.
Multicellular
Which planet is called "the blue planet"?
Earth
The movement of materials across the cell barrier without using cell energy.
Passive transport
The "control center" of the cell.
Nucleus
The shape of a DNA molecule.
Double Helix
A group of similar cells that work together to perform a specific function.
What geometric shape has four equal sides and four right angles?
Square
The movement of materials across the cel membrane using cellular energy.
Active transport
Tiny structures within a cell.
Organelles
The compound that is required for most chemical reactions in cells and that helps cells keep their shape.
Water
A group of organs that work together to perform a major function.
Organ System
Who is the god of war in Norse mythology?
Thor
The quality of a cell membrane that allows some substances to cross while others cannot.
Selectively Permeable
Stores water, food, or other materials in a cell.
Vacuole
DNA carries the genetic information that is passed down from parent to offspring. What does "DNA" stand for?
Deoxyribonucleic Acid
Completes photosynthesis in plant cells.
Chloroplasts
How many wives did King Henry VIII have?
Six
The process by which molecules move from an area of higher concentration to an area of lower concentration.
Thick, clear, gel-like fluid that makes up most of a cell.
Cytoplasm
Very long organic molecules that contain the instructions for a cell to carry out its functions.
Nucleic Acid
Organelles in animal cells that break down large food particles into smaller ones and recycle old cell material.
Lysosomes
What human blood type is known as the "universal donor"?
O Negative
A widely accepted explanation of the relationship between cells and living things.
Cell Theory
Converts energy in food to energy the cell can use-- "the powerhouse of the cell".
Mitochondria
A type of protein that speed up chemical reactions in living things.
Enzyme
A/an ________ is made up of different kinds of tissues that function together.
organ
What is the elemental abbreviation for Gold?
Au
The process that allows large particles to enter a cell.
Endocytosis
This organelle receives proteins and distributes them to the rest of the cell or outside the cell.
Golgi Apparatus
Large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and, sometimes, sulfur (example: meat, dairy, fish, nuts, beans, etc.)
Proteins
The compound that makes up almost 70% of the human body.
Water
What is the only planet that rotates on its side?
Uranus
The process that allows large particles to exit a cell.
Small, grain-shaped organelles that produce proteins.
Ribosomes
Compounds made up of carbon and hydrogen, and some oxygen (example: fats).
Lipids
In multicellular organisms, cells are organized into ______, _______, and _______.
tissues, organs, and organ systems.
What is the official animal of Scotland?
Unicorn
The diffusion of water molecules across a selectively permeable membrane.
Osmosis
This organelle produces many substances and helps ribosomes produce proteins (hint: it has an abbreviation).
Endoplasmic Reticulum
Energy-rich organic compounds made of carbon, hydrogen, and oxygen (includes sugars and starches).
Carbohydrate
Name the two types of microscopes.
Light and electron.
What is the fear of spiders called?
Arachnophobia