Exercises
1. Make a comparison and write down ways in which plant
cells are different from animal cells.
2. How is a prokaryotic cell different from a eukaryotic cell?
3. What would happen if the plasma membrane ruptures or
breaks down?
4. What would happen to the life of a cell if there was no Golgi
apparatus?
5. Which organelle is known as the powerhouse of the cell? Why?
6. Where do the lipids and proteins constituting the cell
membrane get synthesised?
7. How does an Amoeba obtain its food?
8. What is osmosis?
9. Carry out the following osmosis experiment:
Take four peeled potato halves and scoos each one out to
make potato cups. One of these potato cups should be made
from a boiled potato. Put each potato cup in a trough
1. Make a comparison and write down ways in which plant
cells are different from animal cells.
2. How is a prokaryotic cell different from a eukaryotic cell?
3. What would happen if the plasma membrane ruptures or
breaks down?
4. What would happen to the life of a cell if there was no Golgi
apparatus?
5. Which organelle is known as the powerhouse of the cell? Why?
6. Where do the lipids and proteins constituting the cell
membrane get synthesised?
7. How does an Amoeba obtain its food?
8. What is osmosis?
9. Carry out the following osmosis experiment:
Take four peeled potato halves and scoos each one out to
make potato cups. One of these potato cups should be made
from a boiled potato. Put each potato cup in a trough
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Explanation:
1. A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.
2. Thus, two types of cells are found in the organisms: eukaryotic and prokaryotic depending on whether cells contain membrane-bound organelles or not.
3. If the plasma membrane ruptures or breakdown then the cell will not be able to exchange material from its surrounding by diffusion or osmosis. Thereafter the protoplasmic material will be disappeared and the cell will die.
4. It is a packaging organelle. The golgi apparatus packages proteins into vesicles inside of the cell before sending them to their destinations. ... Also, if there is no golgi apparatus, the plasma membrane would be affected because it needs to be able to grow larger for cell division.
5.Mitochondria are known as the “powerhouse of the cell.” They are called so because they produce ATP, which is an energy-dense molecule responsible for powering most cellular processes in a living organism.
6.Lipids are synthesized in Smooth endoplasmic reticulum (SER) and the proteins are synthesized in rough endoplasmic reticulum (RER).
7.Amoeba takes in food using temporary finger-like extensions of the cell surface which fuse over the food particle forming a food-vacuole. Inside the food vacuole, complex substances are broken down into simpler ones which then diffuse into the cytoplasm.
8. process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.
9.
Answer:
1. plant cell is different from animal cell
plant cell consist of cell wall , plastids, and are hard
animal cell does not contain cell wall, plastids and are soft.
2. prokaryotic cell does not contain nuclear membrane
but eukaryotes contain
3. if plama membrane breaks out all harmful and impurities substance will enter inside the cell.
5. mitochondria (ATP )is known because it stores food.
4. lysosomes will not able to produce.
7. amoeba obtains it food by making its structure like epsudopodia and feed by the process of phagocytosis.
8. Osmosis is the movement of liquid substances from higher concentration to lower concentration.