Question

Explain the functions of the following and indicate whether they are present or absent in

plant and animal cells.


a. Vacuole

b. Lysosome

c. Ribosome

d. Centrosome

E. Mitochondria
5m marks
pls answer my question.... ​

Answer 1

Answer:

animal cell

a) vacuole :A vacuole is a membrane-bound cell organelle. In animal cells, vacuoles are generally small and help sequester waste products.

b) Lysosome:A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts.If the cell is damaged beyond repair, lysosomes can help it to self-destruct in a process called programmed cell death, or apoptosis.

c) ribosome: Ribosomes are found ‘free’ in the cytoplasm or bound to the endoplasmic reticulum (ER) to form rough ER. In a mammalian cell there can be as many as 10 million ribosomes. Several ribosomes can be attached to the same mRNA strand, this structure is called a polysome. Ribosomes have only a temporary existence.

d) centrosome: A centrosome comprises two microtubule rings known as centrioles. Its main function is to organize the microtubules and provide a structure to the cell. It also pulls the chromatids apart during cell division.

Explanation:

in plant cell

a) vacuole : In plant cells, vacuoles help maintain water balance. Sometimes a single vacuole can take up most of the interior space of the plant cell.

b) Lysosome: A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria. If the cell is damaged beyond. repair, lysosomes can help it to self destruct in a process called programmed cell death, or apoptosis.

c) Ribosome: Ribosomes are located inside the cytosol found in the plant cell and animal cell.

It is located in two areas of cytoplasm.

Scattered in the cytoplasm.

d) Centrosome: Centrosomes and lysosomes are found in animal cells, but do not exist within plant cells. ... Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.