Cell Organelles Fill in the blank spaces in the chart below. Be sure to pay close attention to the relationship between structure and function of each organelle. Organelle Function Structure directs cell activity & is the genetic control center double membrane perforated with pores provide anchorage for organelles and form the basis of structure and movement for cilia and flagella hollow tube made of globular protein tubulins synthesizes lipids and stores calcium ions network of interconnected membranous tubules synthesizes proteins makes more membrane network of interconnected membranous sacs digests nutrients, bacteria, and damaged organelles digestive enzymes enclosed in a membranous sac protects cell and provides support fibers-in-a-matrix modification, temporary storage, and transport of macromolecules stacks of membranous sacs made from Cell wall maintains cell shape and protects Centriole cylinders of microtubule triplets enclosed by two concentric membranes Chloroplast Cytosol Flagellum core of microtubules wrapped in extension of plasma membrane Microfilaments solid, helical rod composed of globular protein actin Mitochondrion enclosed by two concentric membranes Peroxisomes Ribosomes two subunits made of proteins and RNA Vacuoles membranous sac
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.


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