Second one: Water expands when it freezes
Answer: The correct answer is- C) Ribosome.
Ribosome is a specialized cellular machinery ( made up of ribosomal RNA and proteins), which is present in both prokaryotic and eukaryotic cells.
It acts as a site for the process of protein synthesis as it reads the codon sequence ( a sequence of three nucleotide in mRNA that codes for an amino acid) present in mRNA ( messenger RNA) and utilizes it in the process called translation ( formation of protein from mRNA).
As per the specific codon sequence of the mRNA, it links the corresponding amino acids together, which results in the formation of specific protein ( polypeptide).
Thus, option C) is the right answer.
Having the ability o remember how to ride a bike is an
example of a long term memory. This is
procedural memory; knowing how to do something, having the skills and the
formation of simple associations. These skills are able to be recalled at any
time.
Prophase I
The chromosomes condense, and the nuclear envelope breaks down & crossing-over occurs.
Metaphase I
Pairs of homologous chromosomes move to the equator of the cell.
Anaphase I
Homologous chrmosomes move to the oppisite poles of the cell.
Telophase I and Cytokinesis
Chromosomes gather at the poles of the cells & the cytoplasm divides.
Prophase II
A new spidle forms around the chromosomes.
Metaphase II
Chromosomes line up at the equator.
Anaphase II
Centromeres divides & chromatids move to the opposite poles of the cells.
Telophase II and Cytokinesis
A nuclear envelope forms around each set of chromosomes & the cytoplasm divides.
Answer: Option D
Explanation:
The process in which the macro molecules breakdown in order to derive energy from them to sustain life is known as metabolism.
It includes intake of carbohydrates, fats, protein, nuclei acid and other compounds in order to break them and obtain energy for various types of cellular processes is known as metabolism.
The macro molecules breakdown to provide energy that is used for living.
Hence, the correct answer is option D
