Question

1. Define the following terms:
(i) Cell (ii) Cell organelle (ii) Vitellogenesis (iv) Nucleus
2. Differentiate between :
(i) Organ and Organelle​

Answer 1

Answer:

1. Cells are the basic building blocks of all living things. ... Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell.
2. Cell organelle is a specialized entity present inside a particular type of cell that performs a specific function. There are various cell organelles, out if which, some are common in most types of cells like cell membranes, nucleus, and cytoplasm.
3. Vitellogenesis (also known as yolk deposition) is the process of yolk formation via nutrients being deposited in the oocyte, or female germ cell involved in reproduction of lecithotrophic organisms. In insects, it starts when the fat body stimulates the release of juvenile hormones and produces vitellogenin protein.
4. The nucleus is a membrane-bound organelle that contains genetic material (DNA) of eukaryotic organisms. As such, it serves to maintain the integrity of the cell by facilitating transcription and replication processes. It's the largest organelle inside the cell taking up about a tenth of the entire cell volume

2. (1)The main difference between organ and organelle is that organ is a large part of an organism, composed of tissues which perform similar functions whereas organelle is a specialized structure found inside cells, which carries out a specific life process. ... Organelles occur in all eukaryotes. They are microsopic

Answer 2

Answer:

Cell: All organisms are composed of cells. Some are composed of a single cell, while some like us are composed of many.

Cell organelle: Organelle are small structures within cells that perform dedicated functions.

Vitellogenesis: Vitellogenesis (also known as yolk deposition) is the process of yolk formation via nutrients being deposited in the oocyte, or female germ cell involved in reproduction of lecithotrophic organisms. In insects, it starts when the fat body stimulates the release of juvenile hormones and produces vitellogenin protein

Nucleus: A prominent Nucleus occurs in eukaryotic cells.