Differences between Mitochondria and Chloroplasts
S.N. Mitochondria Chloroplasts 1. They are smaller in size (1-4 µm). They are bigger in size (4-10 µm). 2. They occur in practically all eukaryotic […]
Biology
Differences between Rough Endoplasmic Reticulum (RER) and Smooth Endoplasmic Reticulum (SER)
S.N. RER (Rough ER) SER (Smooth ER) 1. It is composed mainly of cisternae. It is composed mainly of tubules and vesicles. 2. It bears […]
Differences between 70S and 80S ribosomes
S.N. Characteristics 70S Ribosomes 80S Ribosomes 1. Occurrence They occur in prokaryotic cells and in the mitochondria and plastids of eukaryotic cells. They occur only […]
Bacterial endospore: Structure, Stages of Sporulation and Germination
Spore is a resting or dormant cell which is metabolically inactive and is produced during unfavorable conditions like nutrition deficiency, extreme temperature and pH, presence […]
Structure and Types of Animal egg cell or ovum
Egg cell or ovum, also known as female gamete is formed by the process of oogenesis in female organisms. They are produced by follicle cells […]
Sequential events and stages in the development of frog (pre-embryonic, embryonic and post-embryonic development)
Introduction: In sexual reproduction, development of organisms begins with a fertilized egg or zygote. Zygote divides and re-divides to form an embryo. Embryo is the […]
Formation and development of male and female gametophytes in angiosperms
A gametophyte is the haploid phase in the life cycle of a plant that produces gametes. The process of formation of gametes or germ cells […]
Differences between Self-pollination and Cross-pollination
S.N. Self-pollination Cross-pollination 1. Transfer of pollen grains from anther to the stigma of the same flower (typical self-pollination) or another flower of the same […]
The process of fertilization and development of embryo in angiosperms
The fusion of male gamete and female gamete in sexual reproduction is called fertilization. In angiosperms, the female gamete lies deep in the ovarian cavity, […]
Trans-deamination (Metabolism of amino acids) and transport of ammonia from other organs to liver for detoxification
Generally amino acids are the end products of the digestion of dietary proteins. In humans, the degradation of ingested proteins to their constituent amino acids […]