Drawing mitochondria [closed]

Could someone give me a code to plot a mitochondrion like the picture below, or something similar. The pie plot is not necessary. I'm a beginner of tikz and I tried some method and googled a lot but whit no lucky. Many thanks for your kind help.

• Welcome to TeX.SX! On this site, a question should typically revolve around an abstract issue (e.g. "How do I get a double horizontal line in a table?") rather than a concrete application (e.g. "How do I make this table?"). Questions that look like "Please do this complicated thing for me" tend to get closed because they are either "off topic", "too broad", or "unclear". Please try to make your question clear and simple by giving a minimal working example (MWE): you'll stand a greater chance of getting help. – Mike Renfro Sep 2 '15 at 18:18
• Specifically, I assume if you combined some of the work from Confused about TikZ \draw[rotate=angle] and Package for pie charts, you'd have a much more focused question. – Mike Renfro Sep 2 '15 at 18:20
• Thank you for your advise, I really need more practice, both for asking questions and writing tikz code – Honeybadger Sep 2 '15 at 19:04

A very simple mitochondrion (add more intermediate control points):

The code:

\documentclass{article}
\usepackage{tikz}

\definecolor{mypurple}{RGB}{153,51,51}
\definecolor{mybrown}{RGB}{228,154,74}

\begin{document}

\begin{tikzpicture}
\filldraw[mypurple!80,draw=mypurple!70!black,line width=3pt]
(0,0) to[out=210,in=90]
(-2,-5) to[out=270,in=170]
(2,-10) to[out=-10,in=300]
(4,-3) to[out=120,in=30]
(0,0);
\filldraw[mybrown!70,draw=mybrown!60!black,line width=1pt]
([shift={(0pt,-10pt)}]0,0) to[out=210,in=90]
([shift={(10pt,30pt)}]-2,-5) .. controls ++(5cm,10pt) and ++(5cm,20pt) ..
([shift={(10pt,0pt)}]-2,-5) to[out=270,in=130]
([shift={(0pt,10pt)}]-0.8,-8) .. controls ++(3cm,20pt) ..
([shift={(0pt,-10pt)}]-0.3,-8) to[out=300,in=270,looseness=1.45]
(4.25,-7) .. controls ++(-2cm,10pt) and ++(-50pt,0pt) ..
([shift={(0pt,15pt)}]4.25,-7)
to[out=80,in=300]
([shift={(-10pt,10pt)}]3.8,-3)  .. controls ++(-4cm,10pt) and ++(-50pt,0pt) ..
([shift={(-10pt,30pt)}]3.3,-3) to[out=120,in=30]
([shift={(0pt,-10pt)}]0,0);
\end{tikzpicture}

\end{document}

• thank you so much, all your guys are so great and I love tikz. – Honeybadger Sep 2 '15 at 19:02