Describe the term pentoses
Describe the term pentoses? To what organic class do pentoses belong? Are nucleotides made of only one kind of pentose?
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Pentoses are carbohydrates made up of 5 carbons. Deoxyribose is the pentose which comprises DNA nucleotides and ribose is the pentose which is the part of RNA nucleotides.
Bacteria are prokaryotic cells, that is, they do not contain membrane-delimited nucleus. Eukaryotes contain cells with delimited nucleus. Where in such kinds of cells can DNA are found?
In eukaryotic cells, DNA is found in the cell nucleus. In prokaryotic cells, DNA is found scattered in the cytosol, the fluid space within the cell.
The other DNA molecules can also be found in chloroplasts and mitochondria, specialized organelles of the eukaryotic cells.
Define the term blood stem cells?
What do active transport and facilitated diffusion enfold in common? And also write down the differences between them.
Give a brief explanation of plant cell vacuoles. And also write down their properties. What is covering membrane of vacuoles called?
Photosynthesis is the most significant producer of molecular oxygen (O2) on our earth. Name the molecule from which oxygen atoms discharged by photosynthesis come? From which other molecule could one suspect they have come? Write the destin
Give some representatives of the phylum Mollusca? Answer: Octopuses, Snails, squids and oysters are some illustrations of molluscs.
Name the molecules which make possible active transport through the membranes.
Explain the term gastrulation? How for the period of gastrulation are the first two germ layers produced? Also explain these germ layers?
What are various illustrations of cnidarians? In which environments can such animals be found?
State the germ layer from which coeloms initiate?
State the three main signs of diabetes?
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