Rod: night vision
Cone: day vision
Answer:
C. providing protection for the internal organs
Explanation:
The muscular system is made up of the muscles of the body. The main function the muscular system is that it aids movement. Muscles attached to bones and to one another helps the body during locomotion.
The muscular system also serve to protect the internal organs from damage. Some of the abdominal muscles where there are no bones protects the organs located in that part of the body.
Abiotic factors are the non-living parts of the environment that can often have a major influence on living organisms. Abiotic factors include water, sunlight, oxygen, soil and temperature. Water (H2O) is a very important abiotic factor – it is often said that “water is life.” All living organisms need water
Answer:
B. ensure the production of GTP in the case of succinyl-CoA
Explanation:
Succinyl CoA like acetyl-CoA has a thioester bond with very negative free energy of hydrolysis. In this reaction, hydrolysis of the thioester bond leads to the formation of phosphoester bond with inorganic phosphate. This phosphate is transferred to histidine residue of the enzyme and this high energy unstable phosphate is finall transferred to GDP resulting in generation of GTP.
Hence the answer is B. ensure the production of GTP in the case of succinyl-CoA.
Answer:
The 2 carbon compound is called Acetyl CoA. Acetyl CoA now enters the citric acid cycle or the Krebs cycle.
Explanation: 2 molecules of pyruvic acid are the products of the enzymatic degradation of one molecule of glucose in a process known as glycolysis. Each molecule of Pyruvic acid (a 3 carbon molecule) is further degraded to a 2 carbon molecule called Acetyl CoA. Each molecule of Acetyl CoA then enters the citric acid cycle where it is used to produce 1 molecule of GTP, 3 molecules of NADH and 1 molecule of FADH2. NADH and FADH2 then enters the electron transport chain where they are used to generate ATP in a series of enzyme catalyzed reactions.