Cells
What will happen if the concentration of
water inside a cell is higher than the
concentration of water outside a cell?
Water will move out of the cell.
Prem finds an unusual object on the
forest floor. After he examines it under
a microscope and performs several lab
tests, he concludes that the object is a
living thing. Which of the following
observations most likely led to Prem’s
conclusion?
Prem saw cells in the object.
Which term describes “one or more cells
that carry out all of the processes
needed to sustain life”?
organism
What term describes the smallest unit
that can perform all of the functions
necessary for life?
A single cell
Jayden knows that multicellular organisms
are more complex than unicellular
organisms. Which of the following is a
characteristic of multicellular organisms?
Having specialized cells.
According to Theodor Schwann, all parts
of organisms are made up of which of the
following?
cells
What is a plant organ responsible for
trapping light energy to make food?
leaf.
What system is shown

Digestive system
Where does the exchange of materials in
and out of a cell take place?
At the cell membrane
Homeostasis is necessary for a cell to
survive. What is the definition of
homeostasis?
The maintenance of a stable internal
environment.
In one type of cell division, a single cell
forms two new cells. This process is called
mitosis. What is a reason that human skin
cells frequently undergo mitosis?
to replace dead or damaged skin cells.
Organisms can respond to changes in their
environment in order to maintain a
balance, called homeostasis. What does a
tree do to maintain homeostasis during
the winter months?
Loses leaves.
Cells must be able to perform certain
functions in order to survive. Which of
the following must all cells do to survive?
obtain energy
Even when it is cold outside, the human
body maintains an internal temperature of
37 °C. Which term describes the
maintenance of a stable internal
condition?
homeostasis
What is mitosis?
the process in which a cell divides and
forms two identical nuclei
Jorge looks through a microscope and
concludes that the cells he observes are
eukaryotic cells. Which of the following
structures did Jorge most likely observe
before making his conclusion?
nucleus
What describes cellular respiration?
It is the process that breaks down sugars
to release energy.
What structures surround cells?
Cell wall and cell membrane
What is the main function of
chloroplasts in a plant cell?
They perform photosynthesis.
A person has about 200 different kinds
of cells, each specialized to do a
particular job. This means that the person
is multicellular
You are made up of about 100 trillion
cells; however, you began as
a single cell
A ____ keep(s) the cytoplasm inside and
allow nutrients in and waste products out.
cell membrane
____ is what makes
chloroplasts green.
chlorophyll