Biology Questions

The urinary system purpose in the human body is to eleminate the waste from the body. The urinary system is also called as Rena system. It consists of kidney, ureter, urinary bladder and urethra.

DNA is made of nucleotides. And these Nucleotides are made of a pentose sugar deoxyribose, a phosphate, and a nitrogen-containing bases.

Hence, the given statement 'Nucleotides are made of a pentose only' is FALSE.

Ribosomes are present in prokaryotic cells. These are organelles which consist of two subunits. They are present in both Eukaryotic and Prokaryotic cells. They are made up of RNA and proteins and present in the cytoplasm and on the membranes and are involved in protein synthesis.

Five basic tastes are :

salty,

sweet,

bitter,

sour, and

umami.

The taste receptors are located all over in the mouth around paillae structures.

Chloroplasts contains chlorophyll, the green substance in plants that allows them to create food from carbon dioxide and water called as photosynthesis.

The principle of dominance states that some alleles are dominant, while others are recessive.

During protein synthesis process, each tRNA carries one aminoacid for protein synthesis to the ribosomes.

Receptors for hearing the organ of corti or the spiral organ is located in the the mammalian cochlea.