Answer:
Covalent bonds appear inside every linear chain and connect bases, sugars, and phosphate groups.
Hydrogen bonds appear between two strands and involve the base from one strand with the base from another strand in the complementary pairing.
Explanation:
A covalent bond is a chemical bond formed by joining electrons of two non-metal atoms into one or more common pairs.
A hydrogen bond (X-bond) is a type of weak chemical bond based on electrostatic attraction between a hydrogen atom and a nucleophilic atom that contains free electron pairs.
Answer:
1. Glycolysis
- Option- A, C
2. Electron transport chain
-Option-D, E
3.Citric acid (Krebs) cycle- Option-B
Explanation:
1.Glycolysis
Glycolysis is the first phase of the cellular respiration which oxidizes the glucose molecule to pyruvate molecules in ten enzymes catalyzed reaction. The reaction takes place in the cytosol of the cell.
2. Electron transport chain
The last phase of the cellular respiration where the electrons flow or transports through the electron carriers and in last is picked or accepted by the oxygen. The process forms about 24 molecules of ATP through ATP synthesis.
3. Citric acid (Krebs) cycle
The third phase of respiration which forms the reducing equivalents like NADH and FADH₂. The process produces 4 molecules of Carbon dioxide.
The germ theory of disease states that many diseases are caused by the presence and action of specific <span>microorganisms.</span>
