Balbharati solutions for Science and Technology 2 [English] Standard 10 Maharashtra State Board chapter 3 - Life Processes in Living Organisms Part - 2 [Latest edition]

Which are the important life processes in living organisms?

Which life processes are essential for the production of energy required by the body?

Which are the main types of cell division? What are the differences?

What is the role of chromosomes in cell division?

Observe the pictures and tell the life process which you identified.

What do we mean by maintenance of species?

Whether the new organism is genetically exactly similar to earlier one that has produced it?

Who determines whether the two organisms of a species will be exactly similar or not?

What is the relationship between the cell division and formation of new organism of same species by earlier existing organism?

Does the parent cell exist after asexual reproduction - fission?

What would have been happened if the male and female gametes had been diploid?

What would have been happened if any of the cells in nature had not been divided by meiosis?

Which different hormones control the functions of human reproductive system through chemical coordination?

Which hormones are responsible for changes in human body occurring during on set of sexual maturity?

Why has the Government of India enacted the law to fix the minimum age of marriage as 18 in girls and 21 in boys?

Which hormone is released from the pituitary of the mother once the foetal development is completed?

Under the effect of that hormone, which organ of the female reproductive system starts to contract and thereby birth process (Parturition) is facilitated?

You may have read that sometimes a woman may deliver more than two offsprings at a time. Collect more information from internet about reasons for such incidences.

Complete the following chart:

In humans, sperm production occurs in the organ ______.

In humans, ______ chromosome is responsible for maleness.

In male and female reproductive system of human, ______ gland is same.

Implantation of embryo occurs in ______.

______ type of reproduction occurs without fusion of gametes.

Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.

Pollen grains are formed by ______ division in locules of anthers. 

Complete the paragraph with the help of words given in the bracket.
(Luteinizing hormone, endometrium of uterus, follicle stimulating hormone, estrogen, progesterone, corpus luteum) 

Growth of follicles present in the ovary occurs under the effect of ______. This follicle secretes estrogen. ______ grows/regenerates under the effect of estrogen. Under the effect of ______, fully grown up follicle bursts, ovulation occurs and ______ is formed from remaining part of follicle. It secrets ______ and ______. Under the effect of these hormones, glands of ______ are activated and it becomes ready for implantation.

Explain with examples types of asexual reproduction in unicellular organisms.

Explain the concept of IVF.

Which precautions will you follow to maintain the reproductive health?

What is menstrual cycle? Describe it in brief.

In case of sexual reproduction, newborn show similarities about characters. Explain this statement with suitable examples. 

Sketch the labelled diagram.

Human male reproductive system.

Sketch the labelled diagram.

Human female reproductive system.

Sketch the labelled diagram.

Flower with its sexual reproductive organs.

Sketch the labelled diagram.

Menstrual cycle

Give the names.

Hormones related with the male reproductive system.

Give the names.

Hormones secreted by the ovary of the female reproductive system.

Name the two types of twins.

Give the names:

Any two sexual diseases.

Give the names:

Methods of family planning.

Explain asexual reproduction in plants.

Modern techniques like surrogate mother, sperm bank and IVF technique will help the human beings. Justify this statement. 

Explain sexual reproduction in plants. 

Collect the official data about present and a decade old population of various Asian countries and plot a graph of that data. With the help of it, draw your conclusions about demographic changes.

With the help of your teacher, compose and present a road show to increase the awareness about prenatal gender detection and gender bias.