Fundamental concept of biology that states that all living things are composed of cells

Thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell

Structure that contains the cell's genetic material in the form of DNA

Organism whose cells contain a nucleus

Unicellular organism that lacks a nucleus

In eukaryotic cells, all cellular contents outside the nucleus; in prokaryotic cells, all of the cell's contents

Specialized structure that performs important cellular functions within a cell

Cell organelle that stores materials such as water, salts, proteins, and carbohydrates

Cell organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can be used by the rest of the cell

Network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement

Structure in an animal cell that helps to organize cell division

Cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell; the site of protein synthesis

Internal membrane system found in eukaryotic cells; place where lipid components of the cell membrane are assembled

Organelle in cells that modifies, sorts, and packages proteins and other materials from the endoplasmic reticulum for storage in the cell or release outside the cell

Organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy

Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use

Strong, supporting layer around the cell membrane in some cells

Flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings

Property of biological membranes that allows some substances to pass across it while others cannot; also called semipermeable membrane

All viruses are different, but what are two parts that a virus must have?

Which of these statements is true?

Which statement is true?

A virus is so small that 250,000 viruses could fit inside

Cell membranes of living organisms are made of a bilayer (2 layers) of

Which sentence is true

The little sticks poking out of the sides of these viruses are called

Which sentence is true about this picture.

At the top left of this picture, you can see the spike protein of a virus fitting perfectly into a receptor site on our cells. Which sentence below is true?

Once the virus is attached to our cell, the lipid layer of our cell and the lipid layer around the virus can merge because

Which sentence is true?

Once a virus gets into a cell, it

What is the movement of small particles across a selectively permeable membrane like the cell membrane until equilibrium is reached? 

What is the term to describe maintaining internal balance in the cell? 

Which of these is not a form of passive transport?

What is the process of moving water from high to low concentrations through the cell membrane?

Which process moves molecules from low to high concentration?

What type of active transport does waste move out of the cell?

What type of active transport does food move into the cell?

Active transport requires

What is the job of the cell membrane?

The picture shows

The picture shows

Which type of transport goes from low concentration to high concentration using ATP energy?

What type of transport is occurring in the diagram?

Diffusion is a form of __________ transport.

Passive Transport uses ____ energy

_____________ is the free movement of particles across the membrane with the concentration gradient

The general name for movement of substances across cell membranes without need of energy input

Some cells move large particles out of the cell through the process of: