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22 Cards in this Set

  • Front
  • Back

The basic unit of life is called the ___________

Cell

Living things can be singled celled (______________), or more complex (_____________________)

Prokaryotic (single celled)


Eukaryotic (Multicellular, more complex)

Simple, small cells with no nucleus. These make up bacteria and other very small organisms. Outside is a cell wall, cell membrane, and capsule. Flagella sometimes help the cell move. Inside is called the cytoplasmic region and it contains nucleoid, cytoplasm, and ribosomes.

Prokaryotic Cells (single celled organisms)

More complex cells, bigger. Have a defined nucleus that holds the cell's DNA. Plants and animals are made up of these types of cells.

Eukaryotic Cells

The outer boundary of a cell; allows some substances in and keeps others out...

Cell Membrane

This organelle is where the cells gets its energy in the human body; where nutrients from food react with oxygen to make energy for the cell.

Mitochondria




(mitochondria are where cellular respiration takes place in the cell)

These organelles are tiny factories that make different things the cell needs (like proteins, for example)

Ribosomes

The "brains" of the cell. Uses chromosomes to instruct the rest of the cell what to do next. Contains the DNA of the cell.

Nucleus

This fills the rest of the cell and is made mostly of water. Organelles float around in this substance....

Cytoplasm

These organelles clean up the cell, getting rid of waste and other unwanted substances that may get into the cell....

Lysosomes

Cells group together in organisms to make _________________.

Tissues

What is similar about cell membranes and cell walls?

Cell membranes and cell walls both enclose cells

What is different about cell membranes and cell walls?

Plant cells have both cell walls and cell membranes. Animals cells do not have cell walls (have only cell membranes).

What is the difference in a cell membrane and a cell wall?

A cell wall is the outer structure that helps plant cells keep their shape (provide structure and support). A cell membrane is semipermeable and controls movement of molecules in and out of the plant and animal cells.

Where does photosynthesis take place in a plant cell?

In the chloroplasts of plant cells (in the the green leaves)

How are plant cells similar to animals cells? How are they different?

Plant and animal cells contain many of the same components (nucleus, cell membrane, cytoplasm, mitochondria, etc). Plant and animal cells are different in at least two ways:


1. Plant cells have a cell wall for support/animals cells do not have cell walls


2. Plant cells have cholorplasts, which animal cells do not.

Unicellular organisms are called ______________.

Prokaryotes (they have prokaryotic cells). These include bacteria, yeast, amoebas, etc.

Multicellular organisms are called _____________.

Eukaryotes (they have eukaryotic cells). These include all the multicellular organisms like humans, birds, insects, plants, etc. Cells in multicellular (eukaryotic) organisms are specialized to do different jobs.



Cells that do the same job work together to form body ___________________.

Tissues

Groups of tissues form ________________.

Organs

Groups of organs work together to form _____________________________.

Organ Systems

Groups of organ systems working together form an _______________________.

Organism