Sel tumbuhan yang tidak mempunyai kloroplas?

The organelles are only found in plant cells and some protists such as algae. Animal cells do not have chloroplasts. Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells.

Organel hanya terdapat dalam sel tumbuhan dan beberapa prototaip seperti alga. Sel haiwan tidak mempunyai kloroplas. Chloroplasts berfungsi untuk menukar tenaga cahaya Matahari menjadi gula yang boleh digunakan oleh sel.

The classification is subjected to change due to the increase in scientific knowledge with time.

As scientists make novel discoveries, the grouping of organisms changes according to it. For example, at the time of Aristotle, the scientific knowledge was not much advanced. Hence, at that time organisms were simply classified as plants and animals.

With the passage of time, as scientists learn and discover, the scientific classification changes based on these new studies.