Q3. Define kinetic energy and derive expression of it.
Q4.Explain power and its s.1 unit.
Q5.A car is travelling at a velocity of 10m/s and it has a mass of 250kg.compu
energy?
(Biology)
Q1. Why are lysosomes known as suicide bags?
Q2. Where are protein synthesised inside the cell?
Q3. What does a neuron look like?
Answers
Answer of question 5
Answer:
3..The kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Consider a body of mass "m" starts moving from rest. After a time interval "t" its velocity becomes V.
4.The dimension of power is energy divided by time. The SI unit of power is the watt (W), which is equal to one joule per second.
1. It was supposed that if the organelle membrane could be disrupted inside the cell, hydrolases would have access to cytosol with as a result a dramatic degradation of vital components leading to cell death. That led to the concept of lysosomes as “suicide
2..Ribosomes are the sites in a cell in which protein synthesis takes place. Cells have many ribosomes, and the exact number depends on how active a particular cell is in synthesizing proteins.
3.A neuron consists of a cell body having cytoplasm and a nucleus from which elongated hair-like structures emerge. Each of this neuron consists of axons, a process(single long part) and dendrites(short and branched parts). It resembles a small tree with fine hair-like structures arising from its terminals
