Answer: Scientists must be concerned about the impacts it causes on normal people due to aging.
Explanation:When a healthy human takes the growth hormone they do not any side effects or symptoms at the early stage. Once they start aging they have joint and muscle pain in legs and arms earlier than other people of their age and also result in diabetes, blood pressure and heart and lung diseases.
The Human growth Hormone can also cause tumors in brain and also indulge in growth and development of Cancer Cells in people who has cancer or had been diagnosed before.So these are the main side effects that scientists should rectify in Human Growth Hormone.
Answer:
Chloroplasts are the ’solar energy plants’ of a cell – they convert light energy into chemical energy
This chemical energy may be either ATP (light dependent) or organic compounds (light independent)
Only photosynthetic tissue possess chloroplasts (e.g. is present in leaves but not roots of plants)
Chloroplasts are thought to have once been independent prokaryotes that were internalised by eukaryotes via endosymbiosis
They have a double membrane structure (due to vesicular coating as part of the endocytotic process)
They have their own DNA (circular and naked) and ribosomes (70S)
Their metabolic processes are susceptible to certain antibiotics
The structure of the chloroplast is adapted to the function it performs:
Thylakoids – flattened discs have a small internal volume to maximise hydrogen gradient upon proton accumulation
Grana – thylakoids are arranged into stacks to increase SA:Vol ratio of the thylakoid membrane
Photosystems – pigments organised into photosystems in thylakoid membrane to maximise light absorption
Stroma – central cavity that contains appropriate enzymes and a suitable pH for the Calvin cycle to occur
Lamellae – connects and separates thylakoid stacks (grana), maximising photosynthetic efficiency
Explanation:
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If the molecules in a gas lose energy, they will move closer together and change phase into a liquid
Explanation:
Condensation is process where matter changes his states from one to another. In evaporation, matter changes from liquid to gas but when matter changes from gas to liquid is known as condensation. It exists in the form of heat.
The example of condensation of water drops outside the glass. It happens when molecule become cool. Here molecule lose heat. Here it loses its temperature or heat and become slow down
Answer:
D.
Explanation:
A eukaryotic cell may be single-celled or or found in multicellular organisms whose cells contain at least one distinct nucleus. It has defined organelles. And may no contain the chloroplast.
The chloroplast is a specialised organelle found in the cells of green plants or animalcules, and in photosynthetic algae, where photosynthesis takes place.
