The key difference between cellulose and starch is that the cellulose is a structural polysaccharide that has beta 1,4 linkages between glucose monomers while the starch is a storage polysaccharide that has alpha 1,4 linkages between glucose monomers. Starch and Cellulose are macromolecules belonging to the same group of carbohydrates. Carbohydrates are one of the […]
Difference Between Xylem and Phloem
The key difference between xylem and phloem is that xylem is the tissue that conducts water and minerals throughout the plant body while phloem is the tissue that conducts sugar (foods) around the plant body. Tracheophytes are the vascular plants that contain a vascular system. The vascular system is a network of plant cells that […]
Difference Between Heart Rate and Pulse Rate
The key difference between heart rate and pulse rate is based on their definitions. Heart Rate is the rate at which the heart contracts and relaxes. In contrast, Pulse rate is the rate at which the artery expands and contracts when blood passes. Heart rate and pulse rate are often confusing as they are more […]
Difference Between Active Transport and Passive Transport
The key difference between active transport and passive transport is that the active transport moves molecules from low concentration to high concentration against the concentration gradient via a semi-permeable membrane while passive transport moves molecules along the concentration gradient from high concentration to low concentration. Furthermore, Active transport requires energy for molecular movements in contrast […]
Difference Between Chromosome and Chromatid
The key difference between chromosome and chromatid is that a chromosome is a long thread-like form of a DNA molecule while a chromatid is one-half of two identical copies of a replicated chromosome. In fact, two chromatids are joined together by a centromere to form a chromosome. Chromosome and chromatid are closely related structures that […]
Difference Between Oestrogen and Progesterone
The key difference between oestrogen and progesterone is that the oestrogen is the main female sex hormone, which is responsible for the growth of the female reproductive system and secondary sex characteristics while the progesterone is another female sex hormone, which is important for the maintaining and sustaining a pregnancy. Women synthesize several sex hormones including […]
Difference Between Apes and Human
The key difference between apes and human is that apes are close relatives of humans who consists of two extant branches; great apes and lesser apes, while humans are, the only extant members of the subtribe Hominina who have characteristics of erect posture, bipedal locomotion, heavy tool use, complex language use, etc. Apes and Human […]
Difference Between Open Circulatory System and Closed Circulatory System
The key difference between open circulatory system and closed circulatory system is that in open circulatory system, blood and interstitial fluid mix with each other while in closed circulatory system, blood and other fluids never mix with each other. Open circulatory system and closed circulatory system are two ways in which the circulatory system is […]
Difference Between Gene and Allele
The key difference between gene and allele is that the gene is a specific nucleotide sequence that encodes for a specific protein while the allele is a variant of a gene either the dominant or the recessive variant. A gene is the basic unit of heredity. Specifically, it has a precise nucleotide sequence that encodes […]
Difference Between Cell Wall and Cell Membrane
The key difference between cell wall and cell membrane is that the cell wall is a fully permeable cell layer present in bacteria, plants, fungi and algae while the cell membrane is a selectively permeable membrane present in all cell types including the animal cells. Cell membrane (plasma membrane) and cell wall are the outermost […]