Question

1. Pick an organelle from a plant cell and in detail, explain how its structure and function are linked. (Do the Rough Endoplasmic Reticulum).

2. Is it a good idea for drug companies to develop weight-loss drugs that affect cellular respiration? Why or why not? (more than 50 word response)

Answer 1

1. Structure of rough endoplasmic reticulum :- rough endoplasmic reticulum is made up of many folds of tissue and channels ( cisternae ,tubules,vesicles ).These cisternae and tubules are interconnected with each other and attached with nuclear membrane.Ribosomes are also attached on the surface of endoplasmic reticulum that's why known as rough endoplasmic reticulum.

Function :- Synthesis of proteins with the help of ribosomes.

Send signals from nucleus to cytoplasm or cytoplasmic signals to nucleus.

Also known as precursor of lysosomes ( inactive enzymes are synthesized by rough endoplasmic reticulum).

provide vesicles to the golgi complex .

2) Yes,weight loss drugs increase cellular respiration .These drugs activate hormones.And hormones activate lipase enzyme that breakdown triglycerides into smaller molecules, ultimately release energy in the form of ATP ( energy currency of cell ),water and Carbon dioxide.Water exit our body in the form of urine,sweat .And Carbon dioxide exhaled out by lungs.During cellular respiration inhale oxygen and exhale Carbon dioxide.

So,if you have to loss weight about 10 Kg.8.4 of this exhaled as Carbon dioxide and 1.6 as water.So, increase cellular respiration will cause more fat burn.So, highly effective in weight loss.