The smallest units of life in all living things are
When the volume of a cell increases, its surface area,
increases at a slower rate
Surface area is an important factor in limiting cell growth because?
the cell may become too large to take in enough food and to remove enough wastes.
The size to which a cell can grow is limited by its
A cell that can change its shape would be well suited for
moving to different tissues through narrow openings
one difference between prokaryotes and eukaryotes is that
prokaryotes have no nuclear membrane
what is a characteristic of prokaryotes?
they existed on earth before eukaryotes
only eukaryotic cells have
Studying a picture of a cell taken with an electron microscope, you find that the cell has no nucleus and no mitochondria, but it does have a plasma membrane and a cell wall. You conclude that the cell is probably from a(n)
plasma membranes are?
thin coverings that surround cells
the structure that regulates what enters and leaves the cell is called the
the plasma membrane
encloses contents of a cell, allows material to enter and leave the cell, is selectively permeable.
a structure within a cell that performs a specific function is called an
A particularly active cell might contain large numbers of
The Golgi apparatus is an organelle that
labels the molecules made in the endoplasmic reticulum with tags that specify their destination, releases molecules in vesicles, receives proteins and lipids form the endoplasmic reticulum.
One important organelle that helps maintain homeostasis by moving supplies from one part of the cell to the other side is the
In which organelle is ATP produced?
Numerous hair like organelles that protrude from the surface of a cell and are packed in tight rows are called
Proteins are made on the
The double membrane surrounding the nucleus is called the
All cells have:
A covering called a plasma membrane that surrounds the cell and controls what information and materials enter and leave it, an internal fluid that gives shape to the cell and supports the other things within it, either a central zone or a nucleus that contains the cells genes.
cell: plasma membrane::
nucleus: nuclear envelope
How are chloroplasts like mitochondria?
the both contain DNA.
The organelles associated with photosynthesis are
The organelles in plant cells that contain a green pigment are the
Plant cells have a large membrane bound space in which water, waste products, and nutrients are stored. This place is known as a
Which of the following pairs contains unrelated items?
cell wall-animal cell
have chloroplasts and a cell wall
which of the following is the correct order of organization of structures in living things, from simplest to most complex?