Answer:
Gas from Earth's core came to the surface through volcanoes.
Recent hypotheses about the origin of organic molecules suggest that these molecules may have formed in hydrothermal vents deep in the oceans, where hot gases and elements emerge from cracks in Earth's crust.
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Kingdom, phylum, class, order, family, genus, and species is the classification chart levels in order from most broad to least.
Answer:
Yeast cell structure
Each yeast cell has a distinct cell wall enclosing granular cytoplasm, within which can be seen a large vacoule and a nucleus (Fig. 214). The vacuole varies much in size according to the state of activity of the cell.
Yeast contains almost the same organelles of a mature eukaryotic cell. Nucleus, Golgi apparatus, mitochondria, endoplasmic reticulum, vacuole, and cytoskeleton are the most important one. Yeast cell particle size is typically of 5×10μm.
Explanation:
Yet, we don't always think of yeast as something remarkable. Instead, it's often perceived as plain or dull—a single-celled organism that, like a plant, lacks the ability to move on its own accord.
Answer:
Reactants of the cellular respiration process are:
1. C6H12O6
The phase reactant is used: Glycolysis
Location: cell cytoplasm
In cellular respiration, the glucose is used up in the phase known as glycolysis which is performed in the cell cytoplasm that breaks the glucose into 2 molecules of pyruvate.
2. 6O2
The phase reactant is used: oxidative phosphorylation
Location: mitochondrial matrix
Oxidative phosphorylation is the phase of cellular respiration that forms the ATP by the transfer of the electron to the oxygen which reduced the oxygen to water.
Products of cellular respiration are -
1. 6CO2
The phase reactant is used: Krebs cycle
Location: mitochondrial matrix
2. 6H2O
The phase reactant is used: oxidative phosphorylation
Location: mitochondrial matrix inner membrane
3. 38ATP
The phase reactant is used: oxidative phosphorylation, Glycolysis, Krebs cycle
Location: mitochondrial matrix, cell cytoplasm and inner membrane mitochondrial matrix
Answer:
Answer:
Vectors-These are diseases transmission which involves the piercing of the skin-vectors penetration e.g by mosquito. ticks.
Air borne which involves entry through the nasal passages, mouth, eyes to reach the body the respiratory tracts and the blood.
Blood borne diseases are transmitted from e.g piercing of the skin by contaminated objects needles, broken glass. If there is an opening in the skin these transmission is also possible.
Sexual can be transmitted through open sores at the genitals.or use of contaminated needle by infected subject. Sores in the mouth during kissing may be another route
food borne or water borne needs to enter through natural opening of the mouth to reach the body fluids and the blood through the GIT.
Contact diseases does not necessarily need a direct opening for transmission . rather there should be a direct contact between the infected individual and the other. Sometimes a direct contact between the two is not need. e.g common cold, chicken pox , influenza , etc.
Explanation:
