HSC EV Biology 1st Paper 9th Chapter Note

HSC EV Biology 1st Paper 9th Chapter Note. Plant Physiology.  Plant physiology is a subdiscipline of botany concerned with the functioning, or physiology, of plants. Closely related fields include plant morphology (structure of plants), plant ecology (interactions with the environment), phytochemistry (biochemistry of plants), cell biology, genetics, biophysics, and molecular biology. Fundamental processes such as … Read more

Last Updated: March 22, 2026 at 8:45 pm

HSC EV Biology 1st Paper 8th Chapter Note

HSC EV Biology 1st Paper 8th Chapter Note. Tissue and Tissue system. In biology, the tissue is a cellular organizational level between cells and a complete organ. A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by … Read more

Last Updated: March 22, 2026 at 8:45 pm

HSC EV Biology 1st Paper 7th Chapter Note

HSC EV Biology 1st Paper 7th Chapter Note. Gymnosperm and Angiosperm. Gymnosperms are a group of plants which produce seeds that are not contained within an ovary or fruit. The seeds are open to the air and are directly fertilized by pollination. “Gymnosperm”, from the Greek, gymnos, “naked” and sperma, “seed”, develop their seeds on … Read more

Last Updated: March 22, 2026 at 8:45 pm

HSC EV Biology 1st Paper 6th Chapter Note

HSC EV Biology 1st Paper 6th Chapter Note. Bryophyta and Pteridophyta. A pteridophyte sensu lato is a vascular plant (with xylem and phloem) that reproduces via spores, and therefore was a member of the former and now invalid taxon Pteridophyta. The term is now used only informally to denominate a fern (monilophyte) or lycophyte. Most … Read more

Last Updated: March 22, 2026 at 8:45 pm

HSC EV Biology 1st Paper 5th Chapter Note

HSC EV Biology 1st Paper 5th Chapter Note. Algae and fungi. Algae is an informal term for a large, diverse group of photosynthetic organisms that are not necessarily closely related, and is thus polyphyletic. Included organisms range from unicellular microalgae genera, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, … Read more

Last Updated: March 22, 2026 at 8:45 pm

HSC EV Chemistry 2nd Paper 5th Chapter Note

HSC EV Chemistry 2nd Paper 5th Chapter Note. Economic Chemistry. Chemical marine pollution can cause many disturbances which, in the shorter or longer term, can have a negative impact on the economy. These effects may be related to living organisms, ecosystems as well as humans and their activities. The methods used to assess economic impact … Read more

Last Updated: March 22, 2026 at 8:45 pm

HSC EV Chemistry 2nd Paper 4th Chapter Note

HSC EV Chemistry 2nd Paper 4th Chapter Note. Electrochemistry. Electrochemistry is the branch of physical chemistry that studies the relationship between electricity, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electricity, considered an outcome of a particular chemical change or vice-versa. These reactions involve electric charges moving between electrodes and an … Read more

Last Updated: March 22, 2026 at 8:45 pm

HSC EV Chemistry 2nd Paper 3rd Chapter Note

HSC EV Chemistry 2nd Paper 3rd Chapter Note. Quantitative Chemistry. Quantitative chemistry is a very important branch of chemistry because it enables chemists to calculate known quantities of materials. For example, how much product can be made from a known starting material or how much of a given component is present in a sample? Quantitative … Read more

Last Updated: March 22, 2026 at 8:45 pm

HSC EV Chemistry 2nd Paper 2nd Chapter Note

HSC EV Chemistry 2nd Paper 2nd Chapter Note. Organic Chemistry. Organic chemistry is a chemistry subdiscipline involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms. Study of structure includes many physical and chemical methods to determine the chemical … Read more

Last Updated: March 22, 2026 at 8:44 pm