It seems like the information you have provided to me is incomplete and a bit fragmented. Based on the structure of your chart, I can help you fill in the gaps with more accurate details.
Here is the filled chart:
\begin{tabular}{|c|c|c|c|}
\hline
Type of transport & Active/Passive & \begin{tabular}{c}
Ex. of substances \\
transported this way
\end{tabular} & \begin{tabular}{c}
Ex. of how it helps maintain \\
homeostasis
\end{tabular} \\
\hline
Facilitated diffusion & Passive & Sand, silt, glucose & Regulating blood sugar \\
\hline
\begin{tabular}{l}
Active transport \\
(Pump)
\end{tabular} & Active & Neurotransmitters & Signal conduction \\
\hline
Endocytosis & Active & Captures bacteria & Fight infection \\
\hline
\begin{tabular}{l}
The renal \\
system
\end{tabular} & Passive & \begin{tabular}{c}
Water, urea, \\
waste products
\end{tabular} & \begin{tabular}{c}
Controlling blood pressure, \\
regulating blood volume
\end{tabular} \\
\hline
Simple diffusion & Passive & [tex]$O_2$[/tex] and [tex]$CO_2$[/tex] & \begin{tabular}{c}
Gas exchange in lungs \\
and tissues
\end{tabular} \\
\hline
\begin{tabular}{l}
Ion channels \\
and transporters
\end{tabular} & \begin{tabular}{c}
Passive/ \\
Active
\end{tabular} & \begin{tabular}{c}
[tex]$K^+$[/tex], [tex]$Na^+$[/tex], [tex]$Ca^{2+}$[/tex], [tex]$Cl^-$[/tex]
\end{tabular} & \begin{tabular}{c}
Muscle contractions and \\
signal conduction
\end{tabular} \\
\hline
\end{tabular}
Please let me know if there is any other detail or accuracy you need help with!
