Answer:
The leaf discs only float in bicarbonate solution and in the light environment.
Explanation:
The bicarbonate dissolves in water to produce a source of inorganic CO2 in the reaction:
NaHCO3 + H2O → H2CO3 + OH- + Na+
Then, the HCO3- undergoes fixation through several complex steps in order to form a carbohydrate or sugar. These store the converted solar energy in their bonds as chemical energy to be used in metabolism.
Photosynthesis is a chemical process, essential to plant and other primary producers producing energy. Energy in the form of glucose molecules is derived from solar or light energy, water, and inorganic carbon dioxide, while it releases oxygen (from the light reaction). The leaf discs float as O2 gas is produced, making them buoyant.
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
Carbon dioxide + water + energy= glucose + oxygen
It has meanwhile been shown that the most sensitive cells are those that areundifferentiated, well nourished, dividing quickly and highly active metabolically. Amongst the body cells, the most sensitive are spermatogoniaand erythroblasts, epidermal stem cells, gastrointestinal stem cells.
Hoped this helped!
Answer:
Explanation:
An international team of scientists led by the Lomonosov Moscow State University group made a significant step in creating a new type of drug for treatment of autoimmune diseases, such as rheumatoid arthritis and Crohn's diseaase
Answer: 23
Explanation:
After the completion of meiosis in humans, a diploid germ cell has produced cells with half the original chromosome number, generating 23 haploid nuclei.
Meiosis is cell division that reduces chromosome number by half. Hence, a diploid germ cell with 46 chromosomes (23 pairs) is halved to 23 nuclei at the end of meiosis, the 23 nuclei will be carried by the sex gamete
Answer:
I think the answer is C: An experiment that includes one group for which the scientist controls all variables
Explanation:
