Gsc 101 assignment no 2 spring 2022
Solution
QUESTION 1:
1:Which theory is helpful in predicting the 3D shapes of molecules?
Answer: Valence-Shell Electron-Pair Repulsion Theory(VSEPR)
2:Which molecule from H₂O, NH3, CO2, and BH3 has trigonal pyramidal geometry?
Answer:BH3,NH3
3:Which element from Be, Mg, Ca, and Sr has the maximum value of Ionization energy?
Answer:
- Element Value of Ionization energy
- Be 899.5
- Mg 737.7
- Ca 589.8
- Sr 549
4:Predict the period number and atomic number of an element “X” having electronic
configuration 2,8,8,2?
Answer: Calcium(Ca)
QUESTION 2:
1: What is the primary function of the Golgi apparatus?
Answer:
- The Golgi apparatus, or Golgi complex, functions as a factory in which proteins received from
- the ER are further processed and sorted for transport to their eventual destinations: lysosomes,
- the plasma membrane, or secretion. The main function of the Golgi apparatus is the packaging
- of materials for intracellular and extracellular transport. It is also the site for protein and lipid
- modification, e.g. formation of glycoproteins and glycolipids.
2:Explain the function of the smooth endoplasmic reticulum and how it is responsible in
membrane synthesis?
Answer:
The smooth endoplasmic reticulum functions in many metabolic processes. It synthesizes
lipids, phospholipids as in plasma membranes, and steroids. Cells that secrete these products,
such as cells of the testes, ovaries, and skin oil glands, have an excess of the smooth endoplasmic
reticulum.
The smooth endoplasmic reticulum has a tubular form. It participates in the production of
phospholipids, the chief lipids in cell membranes, and is essential in the process of
metabolism. Smooth ER transports the products of the rough ER to other cellular organelles,
especially the Golgi apparatus.
The functions of SER can vary to an extent depending on the type of cell. More commonly, it
is concerned with carrying out certain metabolic processes. Smooth Endoplasmic Reticulum
(SER)is mainly concerned with the synthesis of carbohydrates and lipids, and sometimes, with
their metabolism.
The smooth ER is involved in the synthesis of lipids, including cholesterol and phospholipids,
which are used in the production of new cellular membranes. In certain cell types, smooth ER
plays an important role in the synthesis of steroid hormones from cholesterol.
The outer nuclear membrane is an extension of the membrane of the endoplasmic reticulum,
which synthesizes the lipids for all cell membranes. Proteins are synthesized by ribosomes that
are either attached to the endoplasmic reticulum or suspended freely in the cell contents.
ALSO CHECK: CS301 Assignment 2 solution spring 2022