Un-Answered Questions { Cell Biology }

What is the plasma membrane of the cell? What are its main functions?

466


What are the colors (of the electromagnetic spectrum) absorbed by plants? What would happen to photosynthesis if the green light waves that reach a vegetable were blocked?

439


Is there any bacteria made of more than one cell?

504


What are the two big groups into which cells are classified?

495


What are the three main parts of a eukaryotic cell?

487


Which type of cell came first in evolution the eukaryotic cell or the prokaryotic cell?

468


Which are the cell organelles that participate in the cell division and in the formation of cillia and flagella of some eukaryotic cells?

596


Are there living beings without cell?

501


What is diffusion?

536


What are the functions of the cytoskeleton?

469


What is the molecule responsible for the absorption of photic energy for photosynthesis? Where is that molecule located in photosynthetic cells?

613


What are the morphological, chemical and functional similarities and differences between lysosomes and peroxisomes?

497


Concerning the presence of nucleus what is the difference between animal and bacterial cells?

522


Where in the cell can ribosomes be found? What is the main biological function of ribosomes?

523


What is the difference between osmosis and diffusion?

481