Answer:
Thyroid hormones are sometimes present in either abnormally high or low levels in people with bipolar disorder.
Explanation:
→depression is associated with low levels of thyroid hormone
→mood elevation is associated with high levels of thyroid hormone.
furthermore; reducing the levels of high thyroid hormone in the blood stream with lithium may mitigate manic symptoms in patients of bipolar disorder,
this buttress the point that fluctuations in thyroid hormones is a causative factor
The answer is, all three carbons from glucose molecules enters the Kreb cycle. But three at a time only. One molecule is broken down to two pyruvate molecules and then used in Krebs cycle. Which means that one glucose molecules leads to two cycles of the Kreb cycle with three carbons going to the cycle at one time.
Answer:
a) food availability
Density-dependent factors have varying impacts according to population size. Different species populations in the same ecosystem will be affected differently. Factors include food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size.
Answer:
Peroxisomes
Explanation:
Peroxisomes are the membrane-bound organelles present in eukaryotic cells only. These are specifically abundant in liver cells and are involved in the breakdown of fatty acids. Peroxisomes have enzymes that catalyze metabolic reactions in which hydrogen from various compounds is transferred to oxygen. These reactions produce hydrogen peroxide. Catalase is the enzyme present in peroxisomes that rapidly splits excess hydrogen peroxide to water and oxygen, rendering it harmless.
Letter A, a hypertonic solution.