Answer: Hm can you go into depth?
Explanation:
In an animal cell, Mitochondria alone provides energy required to carry out all life essential cellular activities like synthesis of substance, disposal, Synthesis of protein,etc, by converting food into energy rich molecules called ATP.
Whereas in case of a plant cell, Chloroplast along with Mitochondria generates energy for the cell. Chloroplast in the plant cell uses sunlight to synthesis energy through the process of light and dark reaction simultaneously.
Answer:
C). viscosity increases with increasing length of the blood
Explanation:
Systemic vascular resistance (SVR) refers to the resistance to blood flow offered by all of the systemic vasculature, excluding the pulmonary vasculature. This is sometimes referred as total peripheral resistance (TPR).
Some factors that decrease blood flow and increase resistance include increased viscosity of the blood, increased length of the blood vessel and decreased radius of the blood vessel. Blood vessels - and in particular, the more muscular arteries - are often the source of resistance.
What determines resistance are:
1. Resistance is proportional to LENGTH (L) of the tube (blood vessel)
-Resistance INCREASES as length increases
2. Resistance is proportional to VISCOSITY, or thickness, of the fluid (blood)
-Resistance INCREASES as viscosity increases
3. Resistance is inversely proportional to tube RADIUS to the fourth power
4. Resistance DECREASES as radius increases
Answer: Electron Microscope is most appriopriate for studying living cells.
Explanation:
Most of the cells are so tiny that they cannot be viewed with the naked eye. Therefore, scientists must use microscopes to study the behavior of cells. Electron microscopes provide higher magnification, higher resolution, and more detail than light microscopes.
The major demerits are size, maintenance, cost, researcher training and image artifacts resulting from specimen preparation. This type of microscope is a large, cumbersome, expensive piece of equipment, strongly sensitive to vibration and external magnetic fields.
