Plants get the carbon dioxide they need from the air through their leaves. It moves by diffusion through small holes in the underside of the leaf called stomata . ... These let carbon dioxide reach the other cells in the leaf, and also let the oxygen produced in photosynthesis leave the leaf easily.
Answer:
1. Linear chromosomes with centromeres and telomeres that facilitate sexual reproduction
2. 3 dimensional DNA architecture to support control of transcription
3. Chromosome structure that controls packaging and expression.
Explanation:
The Eukaryotic genome is more complex and possesses a large number of base pairs compared to the prokaryotes.
The eukaryotic genome is arranged in a structure that they can be passed on easily to the offspring that is the linear DNA becomes condensed and form chromosome structure with a centromere is the center and telomeres at the end.
The chromosome structure allows the easy transcription of the genome and the controls the expression and packaging that is at some point it becomes condensed and at some it is relaxed.
Since the eukaryotes possess a membrane-bound nucleus, therefore, the option is incorrect.
Thus, the selected options are correct.
Answer: Hemoglobin
Explanation: Hemoglobin is a protein very rich in iron found in red blood cells and is responsible for the transportation of Oxygen from the lungs to the whole body. Oxygen binds to the hemoglobin in red blood cells and the red pigmentation of blood that is highly oxygenated is due to the hemoglobin content found in RBC's.
Answer:
Water is the common solvent of the body
Water is a polar, covalent molecule
The high heat capacity of water relates to its ability to absorb significant
amounts of heat before changing one degree celsius
.
Acids have a higher concentration of free H+ than are found in bases
Explanation:
Water is also called universal solvent because it can dissolve a large number of polar compounds due to its polar nature. In water, covalent bond is present between hydrogen and oxygen due to which partial positive charge occurs on hydrogen and partial negative charge appears on oxygen atom due to difference in electronegativity values. Acids has high concentration of proton (H+) while bases has high amount of OH- ions.
Answer:
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Explanation:
Matter cannot be created in chemical reactions, so this is a conversation of mass. In the chemical reaction must end up in the products it started with.