I think the correct answer from the choices listed above is option B. Lipid is the organic molecule which is responsible for the insulation of internal organs against shock. It can act as a shock absorber in order to protect important organs and also it insulate the body from extreme temperatures.
It kills the plant so no mineral salt
The right answer is vitamin C—citric acid.
Vitamin C or ascorbic acid protects against cellular aging, is essential for the immune defenses and increases the assimilation of iron of plant origin.
Citrate is a biological molecule found in all living organisms because it is involved in the Krebs cycle (or citrate cycle) to produce energy.
Answer:
4. c) They result in production of diffusible second messengers
Explanation:
G-protein coupled receptors (GPCR) and steroid hormone receptors have common in the way that both result in the production of diffusible second messengers into the cytosol for further initiation of signal transduction pathways in the target cell. Hence option (c) is the correct answer.
Answer:
D
Explanation:
Plant cells have chloroplasts to turn light energy into glucose through photosynthesis, but animals do not, since animals do not make their own food.
