Question

Read the different combinations of terms given below. The correct combination of terms with reference to an animal cell is

• A. cell wall plastid, cell membrane and nucleus.
• B. cell wall, nucleus, ribosome and chromosome.
• C. cell membrane, ribosome, mitochondria and chromosome.
• D. chloroplast, cell membrane, ribosomes and mitochondria.

Answer 1

The correct option is C

cell membrane, ribosome, mitochondria and chromosome.

The correct option is : C

Explanation for the correct option:

1. Animal cell includes cell membrane, ribosome, mitochondria, and chromosome.
2. The cell membrane in animal cells is also known as a semi-permeable membrane.
3. Due to its semi-permeability transport of selective substances across the membrane are possible. Its fluid nature is helpful in cell growth and division.
4. Mitochondria are also known as the powerhouse of the cell and are the site of ATP synthesis. It converts the chemical energy of food into ATP.
5. The ribosome is the protein factory that helps in the synthesis and transportation of protein.
6. Chromosomes are distinctly visible in metaphase and carry the genetic material from parent to offspring.

Explanation for the incorrect options:

Option A:

1. It includes cell wall plastid, cell membrane, and nucleus.
2. The animal cell contains a cell membrane and nucleus.
3. The cell wall is not present in animal cells because it is made up of cellulose which makes the cell rigid and animals are not sedentary so animals do not need cell walls.
4. Plastids are used for manufacturing food and heterotrophs do not manufacture food.
5. Plastid includes chloroplast that is used in process of photosynthesis.

Option B:

1. It includes the cell wall, nucleus, ribosome, and chromosome.
2. The animal cell includes the nucleus ribosome and chromosome.
3. The cell wall is not present in animal cells because it is made up of cellulose which makes the cell rigid and animals are not sedentary so animals do not need cell walls.
4. The cell wall provides rigidity to plants and limits their movements.

Option D:

1. It includes chloroplast, cell membrane, ribosomes, and mitochondria.
2. The animal cell includes cell membrane ribosome and mitochondria.
3. Animal cells do not possess chloroplast.
4. Chloroplasts are types of plastids that are used in the process of photosynthesis.
5. Photosynthesis is the process is manufacturing food in presence of sunlight.

Final answer:

The correct combination of organelle present in animal cells are cell membrane, mitochondria, ribosomes, and chromosomes.