FREE BSGS Natural Sciences Question and Answer
How does niacin help to maintain?
Niacin is typically regarded as the vitamin that shields against pellagra. Niacin deficiency can cause problems with the brain system, skin, and digestive system in individuals.
Folic acid deficiency could lead to:
Folic acid is necessary for healthy bone marrow function, and a lack of it may cause several types of anemia.
Although they have the same elements as carbohydrates—carbon, hydrogen, and oxygen—fats are different from them in that they:
Hydrogen to oxygen atom ratio in lipids is substantially higher than 2:1.
During the mitotic prophase,
The prophase is understood to be the stage of mitosis during which the chromatids in the doubled chromosomes may be seen.
When one population is dependent on the advantages provided by another population in order to live, the connection is known as:
The ability of at least one population to survive without the other is what defines mutualism.
The cause of etiolation in plants is:
When triggered by insufficient light, stem elongation can become excessive and is known as etiolation.
Where in the chloroplast do the "dark" processes of photosynthesis occur?
The energy of the ATP, which is created in the light, is used by the dark reactions of photosynthesis to power their vital functions, all of which take place in the transparent stroma that surrounds the grana of the chloroplast.
An egg and sperm joining together is known as:
A fertilized egg, or zygote, is created by the union or fusing of an egg and sperm, according to the definition of fertilization.
An organism that can create its own nourishment is referred to as:
An organism that is autotrophic may produce its own food, typically through photosynthesis.
Water is lost by transpiration as a result of
Water from a plant's aerial portion evaporates during transpiration. Diffusion is a type of molecular activity that leads to evaporation.
Fibrinogen is:
Thrombin, an enzyme, transforms fibrinogen into fibrin, which progressively forms a net into which blood cells attach themselves, forming a clot.
The likelihood of developing gametes with dominant genes ("AB") in a person with genotype AaBb is
A person with an AaBb genotype has a one in four chance of having an AB segregation of genes after meiosis.
You might anticipate seeing moose and spruce in the:
Conifers, especially spruces, predominate in the coniferous forest biome. Bears, mice, birds, and moose live there.
Nephrons
The functional kidney units known as nephrons reabsorb blood, sugar, amino acids, urea, different ions, and a significant amount of water while secreting vast amounts of fluid.
Lake eutrophication is a risk.
When phosphorus and nitrogen-containing chemical fertilizers wash into a lake, the result is eutrophication, which raises the productivity of the photoplankton and the bottom plants. This massive growth obstructs light, killing deep-rooted plants, and certain decomposers use all the oxygen, smothering fish.
In an ecosystem, sulfur is significant because it is:
All carbohydrates and lipids can be made from carbon, hydrogen, and oxygen, but proteins require extra elements like nitrogen and, occasionally, sulfur to be made.