. Adventures with animals and plants. Biology. I20 Liv'mg Things Are Basically Alike unit ii. Fig. 148 Breaking up a log jcn/i. There are active cells in the viai and in the trees along the bank. What activities are being carried on in these cells? In which cells is there the greatest amount of oxidation? (American museum of natural history) \c)u will learn more about light as an important form of energy in a later unit. You are acquainted with electrical en- ergy, which can be transferred from one place to another in wires. This form of energy can be changed into other forms, such as heat and
. Adventures with animals and plants. Biology. I20 Liv'mg Things Are Basically Alike unit ii. Fig. 148 Breaking up a log jcn/i. There are active cells in the viai and in the trees along the bank. What activities are being carried on in these cells? In which cells is there the greatest amount of oxidation? (American museum of natural history) \c)u will learn more about light as an important form of energy in a later unit. You are acquainted with electrical en- ergy, which can be transferred from one place to another in wires. This form of energy can be changed into other forms, such as heat and light, or it can do work directly as in causing a motor to turn. You may have seen the inechajiical en- ergy of moving water turn a Avaterwheel or move a boat or e\en rocks in the stream bed. It is easy to understand that heat, electricity, and the mechanical en- ergy of moving objects can do work. iMicrgy, or the al)ilit\- to do work, may be stored. Coal contains stored eneriry, and, since this cncrg\- lies in the chemical make-up of the coal, it is also called che7fiical energy, in biology chemical energy is of great importance; all living things contain it. All forms of energy can be changed into one another. For example, when coal is used for making steam in an engine its stored chemical energy is changed into heat energy; this heat en- ergy is used in machines to produce electrical energy which is turned into light energy in the lamps in our homes or into mechanical energy in our wash- ing machines. Oxidation in the cell changes stored energy. You have learned that in all oxi- dation heat energy is released. You just read that when coal is burned the stored energy of the coal is changed partially into heat energy. The same thing hap- pens in a cell. In a cell it is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly re
Size: 1915px × 1305px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookpublisherbostondcheath, booksubjectbiology
