Explanation

Metaphase, one of the most critical stages in mitosis

Chromosomes are most compact in metaphase

When the centromeres of the chromosomes of all cells are aligned with the equator of the mitotic spindle.

Chromosomes are most easily visualized at this stage,

So metaphase is especially useful in cytogenetics.

Explanation

ATP is a nucleotide consisting of an adenine base attached to a ribose sugar, which is attached to three phosphate groups.

These three phosphate groups are linked to one another by two high-energy bonds called phosphoanhydride bonds.

Explanation

Photosynthesis It is the process of the preparation of food by plants in presence of sunlight.

Oxygen is released in the process and not required for it.

Following reaction takes place during the reaction.

6CO2 + 6H20 + light → C6H12O6 + O2

Explanation

Platelets are produced from very large bone marrow cells called megakaryocytes.

As megakaryocytes develop into giant cells,

they undergo a process of fragmentation that results in the release of over 1,000 platelets per megakaryocyte.

Explanation

Pepsin is a digestive enzyme that breaks down proteins into smaller peptides and amino acids.

It is produced in the stomach and is activated by hydrochloric acid.

Pepsin is essential for the digestion of protein-rich foods such as meat, poultry, fish, eggs, and dairy products.

Explanation

The cell wall is the outer covering of a cell, present adjacent to the cell membrane, which is also called the plasma membrane.

As mentioned earlier, the cell wall is present in all plant cells, fungi, bacteria, algae, and some archaea.