Answer:
true
Explanation:
the condenser lens is the size of the electron beam and the main objective lens is to focus the beam on the sample
so that scanning electron microscope have two projector lens
sorry if its not correct
Answer:
6.) The stroma!
7.) Wavelengths of 430nm(blue) and 662nm(red). <em>( It reflects green light strongly so it appears green to us. :) )</em>
8.) Glucose is used by plants for energy and to make other substances like cellulose and starch. <em>(Cellulose is used in building cell walls.)</em>
9.) Animals either eat plants to obtain chemical energy in the form of glucose or they eat other animals that ate plants. So, energy moves from the Sun to plants to animals. Animals also use oxygen released by the plants to breathe.
Answer:
3
Explanation:
Three hydrogen bonds....
"Cytosine and guanine pairing can be found in both DNA and DNA-RNA hybrid formed during replication and transcription. The two nitrogenous bases are held together by three hydrogen bonds."
Answer:
Enzymes have specific sites which are known as the active sites. The shape of the active sites is specific for specific kinds of substrates. This allows every enzyme to be specific for its action. Only the specific substrate will be able to fit into the active site and hence, activate the enzyme. The presence of active sites makes the activity of each enzyme specific and hence, every enzyme is able to catalyze a specific kind of reaction.
