Monthly archives: October, 2012

How do cells get the energy to phosphorylate ADP into ATP?

Photosynthesis is the only process on earth that converts light energy into chemical energy. Carbon dioxide, water, and sunlight are the raw materials involved in the process and glucose and oxygen are the end products. Photosynthesis occurs in two stages. The first phase is the light-dependent reactions and captures the energy of light and makes …

Bacteria

In 1676 Anton Van Leeuwenhoek discovered the microbial world by his simple microscope. It was only after the invention of compound microscope by Hooke in 1820, that bacteria came to lime light. These very minute creatures were designated as “small microscopic species” or “ Infusorial animalcules”. Louis pasteur(1822-95 ) made a detailed study of bacteria …

Learn Biology: Autotrophs vs. Heterotrophs

SALE TODAY: Learn Piano on iOS bit.ly Mahalo biology expert Mary Poffenroth discusses the differences between autotrophs and heterotrophs. Every living organism needs energy to survive and they extract that energy from the food they consume. Based on how they obtain energy, living organisms are classified into two groups: autotrophs and heterotrophs.c The autotrophs can …

Locating Vascular Bundles In a Stem

Check us out at www.tutorvista.com In plants, assemblage of conducting tissues and associated supportive fibres. Xylem tissue transports water and dissolved minerals to the leaves, and phloem tissue conducts food from the leaves to all parts of the plant. The condition of the xylem, the woody elements in the stem, defines several categories. The protostele …