Biology Ch 5 Class 12 Growth and Development

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Biology Chapter 5 – Growth and Development (Class 12) for FSC & Entry Test Preparation

Chapter 5, Growth and Development, is an important topic for Class 12 students preparing for FSC board exams and medical/engineering entry tests like MDCAT, NUMS, AKU, NUST, ECAT, and UET. This chapter explains how living organisms grow, develop, and undergo changes from embryonic stages to maturity. Understanding growth and development is essential for studying life processes, physiology, and regulation.

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In cystic fibrosis, liposomes-microscopic vesicles are sued which are coated with:

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The major sign and symptoms of microcephaly is:

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The disease that arises due to increasing age is:

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A bean seed contains all of the following except:

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Microcephaly, the small sized skull is due to:

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Cells elongate by

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The active sites of all enzyme are formed by:

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In multicellular plants cell division occur by

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The most abundant organic molecule on the planet earth is:

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All of the followings are the effects of red light on plant, EXCEPT:

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Human embryo remains enclosed in:

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The process of aging:

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The only promoter of leaf senescence in the following plant hormones is?

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Meristems are group of cells that

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The individual with harelip shows which of the following conditions?

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Lateral meristems are present in

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Typical symptoms like enlarged breasts and small testis in male are attributed to:

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he only promoter of Leaf’s senescence in the following plant hormones is:

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Turner’s syndrome is characterized by having:

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______ is the reconstruction of the lost part of the body.

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Higher plants grow through

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Fetus is human embryo from the beginning of which of the following?

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Which of the following is not related to apoptosis?

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Meristems are of

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Thyroxine deficiency in adults’ results in a condition called:

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The cells in our body are all genetically identical, apart from the:

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When a fetus is in the uterus, what carries oxygen away from the placenta?

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Determinate growth is

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Plasticity of cell wall increases during

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Growth of multicellular plants occur in

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Apical meristems are located at

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The egg of a chick is laid at which of the following stages?

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The best function of coelom is described as:

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A plant has a growth pattern called

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Germ layers are formed in which stage of development?

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Tails can be regenerated in:

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The fate of each blastomere is foretold. What will that cleavage be?

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Cytoplasmic localization is a consequence of:

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Sertoli cells

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_____ cells store surplus food and _____ cells produce new cells for growth and development of the plant:

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Intercalary meristems are of

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In some cases, the blastomere can produce complete embryo so, the cleavage will be:

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Which of the following is NOT a function of Abscisic acid?

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Function of intercalary meristems is

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Cambium are examples of

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Thymus is found in the human body in _____.

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Cells of fibers and tracheids elongate during

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The reason plants are considered totipotent is:

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Nutrition to egg in ovary is provided by which of the following?

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Secondary growth is actually

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Wood is not formed in:

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Over-secretion of cortical hormone causes a disease called;

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In plants growth is of

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The fate of each blastomere is foretold. What will that cleavage be?

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Amniotic fluid in human embryo protects it from:

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Speed of growth is

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The cells that play a vital role in the differentiation of various body parts are called:

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Leukaemia is associated with an increased number of _____ in blood.

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Growth process is

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Vegetative roots and shoots grow by

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Germ cells give rise to:

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The condition due to loss of appetite for food is termed as:

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Key Concepts about Growth and Development

The chapter explains the types of growth, including primary and secondary growth in plants and continuous and determinate growth in animals. It covers cell division, differentiation, and the role of meristems in plants. In animals, the chapter discusses developmental stages, hormonal regulation, and factors affecting growth. Processes such as morphogenesis, aging, and regeneration are also explained. Each concept is described with examples, biological significance, and relevance in maintaining life and adaptation. These concepts are highly important for FSC board exams and entry tests like MDCAT, NUMS, AKU, and NUST.

Free Entry Test Preparation

Mastery of growth and development helps students understand cellular processes, regulation of life stages, and developmental biology. PLS Academy provides practice questions, solved past papers, and chapter-wise MCQs to help students revise these topics effectively. Regular study of this chapter improves problem-solving skills, conceptual clarity, and exam performance, ensuring students are well-prepared for both board exams and competitive entry tests.

JazakAllah.

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