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Female reproductive system  Uterus and types of uterus  Cervix and vagina  Vulva Oviduct

What is penis? Body of penis Erection of penis Histology of seminiferous tubules Other functions of sertoli cells

The substances secreted by the accessory reproductive glands help in reproduction. These are 1. Seminal vesicles It is also called uterus masculinus. It forms from the mullerian duct of the embryo. In females, these ducts form from the oviducts. Internally, it is lined by glandular epithelium which secretes seminal fluid, which is lubricating, transparent and jelly like substance,which makes 60-70% part of semen. It is slightly alkaline (pH-7.3) . Fructose is found in seminal fluid, it act as fuel to sperm. 

As you are aware, humans are sexually reproducing and viviparous. The reproductive events in humans include formation of gametes (gametogenesis) that is sperms in male and ovum in females, transfer of sperm into the female genital tract (insemination) and fusion of male and female gamete (fertilization) leading to formation of zygote. This is followed by formation and development of blastocyst and it's attachment to the uterine wall ( implantation) , embryonic development (gestation) and delivery of the baby (parturition). You have learnt that these reproductive events occur after puberty. These are remarkable differences between the reproductive events in the male and in the female, for example sperm formation continues even in old men, but formation of ovum ceases in women around the age of fifty years. Let us examine different topics by clicking on them- 1. Male Reproductive System 2. Accessory reproductive glands in males 3. penis 4. Male Reproductive Hormones 5. Female reprodu...

Digestive system To perform various functions of the body energy is required which is obtained from food. The process of conversion of complex indiffusible food material into simple and diffusible food by mechanical and biochemical process is termed as digestion . The alimentary canal is tubular structure which extends from mouth to anus . It develops from ectoderm and endoderm.  Ectoderm - upto hard palate Endoderm - from soft palate to rectum Ectoderm - from anal canal to anus The alimentary canal is divided into following parts  1- mouth and buccopharynheal cavity 2) oesophagus 3) stomach 4) intestine - small and large 1) MOUTH AND BUCCOPHARYNHEAL CAVITY Mouth is a horizontal transverse slit like aperture which is surrounded by upper and lower lip,a specific muscle is associated with lip called orbicularis oris muscle. Serous gland are found on the inner part of lip . Serious gland is the modification of mucus glands. It's secretory substance is watery. ...

Q.1) Why do metals not evolve hydrogen gas with nitric acid? Q.2) What are oxidising agents? Q.3) What will be the structural formula and electron dot structure of cyclopentane? Q.4) Write down an account of composition of blood. Q.5) Differentiate between autotroph and heterotroph. Q.6) What is peristalsis? Q.7) What is the function of trachea? Q.8) How are the alveoli designed to maximize the exchange of gases? Q.9) Explain the advantages of vegetative propagation. Q.10) State the process of grafting. Q.11) What is sexual reproduction? List its four significances. Q.12) What is meant by DNA copying? Q.13) How does the embryo get nourishment inside the mother's body? Q.14) Explain the term lateral inversion. Q.15) List four specific characteristics of the image of the objects formed by convex mirrors.

Q.1) Which endocrine gland is present in males but not in females? Q.2) List two natural ecosystems. Q.3) What is commercial unit of electrical energy? Represent it in terms of joule. Q.4) What is the role of plane mirror and lateral inversion? Q.5) How is ethene prepared from ethanol? Give reaction involved in it. Q.6) In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in female gamete? What is the number of chromosomes in zygote? Q.7) Explain the role of mouth in digestion of food. Q.8) Mention the major events during photosynthesis. Q.9) Give two methods to slow down rancidity. Q.10) What constitutes the central and peripheral nervous system? How are the components of central nervous system protected? Q.11) Write the formula and draw electron dot structure of carbon tetrachloride. Q.12) What is saponification? Write the reaction involved in this process. Q.13) What is electrical resistivity of the material? What is its unit? Describe a...

1 MARK QUESTIONS Q.1) Name the substance oxidised and reduced in the given reaction MnO2 + 4HClv----> MnCl2 + 2H2O + Cl2 Q.2) What process in plants is known as transpiration? Q.3) Write the SI unit of resistivity? 2 MARKS QUESTIONS Q.4) Which among the following changes are exothermic and endothermic in nature? a.) Decomposition of ferrous sulphate  b.) Dilution of sulphuric acid c.) Dissolution of sodium hydroxide in water d.) Dissolution of ammonium chloride in water Q.5) Why do we store silver chloride in dark coloured bottles? Q.6) Name the correct substrates in the following enzymes a.) Trypsin b.) Amylase c.) Pepsin d.) Lipase Q.7) How does use of a fuse wire protect electrical appliances? Q.8) Three 2ohm resistors A,B and C are connected as shown below. Each of them dissipates energy and can withstand a maximum power of 18W without melting. Find the maximum current that can flow through the three resistors.  3 MARKS QUESTIONS Q.9) Differentiate between arteries and ...