Explanation:
Sickle cell anemia is a disease that is caused by the sickle shape of the oxygen carrier molecule called hemoglobin in the blood. The hemoglobin since is a protein, therefore, is composed of the amino acids and it is the 3 D arrangement of these amino acids which provides proteins its function.
The amino acids are coded by the DNA present in the molecule therefore the shape is the result of the DNA. The mutation in the DNA causes the substitution of the glutamic acid to valine at 6th position.
The glutamic acid contains -COOH group in its R side chain which becomes C00- as a result of which the amino acid is negative and acidic in nature. This negative charge allows the formation of bonds with positive change which stabilizes the structure of the protein.
Valine is a neutral and non-polar amino acid therefore will not form any bond with the proteins and thus a stable structure is not formed. This difference in the side chain in the amino acids is the region the hemoglobin structure is changed.
Catalysts speed up reactions.
Answer:
This illustration shows how water transfer imitates energy transfer through an ecosystem.
Note here that just as there is energy loss in the transfer of energy, there is also water reduction in the transfer of water.
A student is to dip cup 1 in the first container loaded with water. He will at that point move the water from cup 1 into cup 2 which is in his left hand. There will be a dim plate/ container under his left hand to hold water coming from the openings in cup 2, exchange the water in cup 2 to his partner who is holding cup 3 and they will proceed with the water transfer until they arrive at the last container.
They may notice that there is going to be a considerable amount of water reduction from the first container to the last container.
Explanation:
Energy moves through ecosystems a single way from photosynthetic living beings. The all out energy found in living beings from one tropic level in a natural way of life is accessible to life forms in the following tropic level as just a part of energy reduction; the rest is used in metabolic cycles or changed into heat.
Answer:
0.33hours
Explanation:
The speed of a moving body can be calculated by using the formula;
Speed = distance ÷ time
According to the information provided, the time it would take Craig to ride the skateboard on the sidewalk at an average speed of 18km/h for a distance of 6km is being asked.
Hence, derived from the above formula;
Time = Distance/speed
Time = 6/18
Time (hr) = 0.3333hr or 19.8minutes
Answer:
Jaguars and frog are carnivorous, lizard is omnivorous, whereas sloth, monkey and butterfly
Explanation:
Jaguars, frog, lizards, are carnivorous which feeds on meat of other organism whereas sloth, monkey and butterfly are herbivorous which feeds on plants. Jaguar feeds on Capybaras, deer, tortoises, fish, birds and monkeys etc, frog feeds on insects and lizard also eats insects as well as plants so it is omnivorous while on the other hand, sloth lives on the trees so feed on plants, butterfly feeds on flower's nectar and monkey feeds on the fruits present on the trees.