Biology

Biology Multiple Choice Questions and Answers (MCQ) PDF: Quizzes & Practice Tests with Answer Key. This section Biology basic concepts, theory and objective tests.

This section covers following topic MCQs: Bioenergetics, biological molecules, cell biology, coordination and control, enzymes, fungi, recyclers kingdom, gaseous exchange, growth and development, kingdom Animalia, kingdom plantae, kingdom prokaryotae, kingdom protoctista, nutrition, reproduction, support and movements, transport biology, variety of life, and homeostasis etc.

    Reproduction System
    The gestation period in human is about:
    The gestation period is the period of foetal development starting from fertilisation and ending at parturition or childbirth. During this period, the single-celled zygoteundergoes gradual changes that help it to become afunctional multicellular organism. The gestation period in human beings is about 270-280 days (9 months).
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    Biology
    The period of transition from childhood and adulthood is known as
    Adolescence is the period of transition between childhood and adulthood. Children who are entering adolescence are going through many changes (physical, intellectual, personality and social developmental). Adolescence begins at puberty, which now occurs earlier, on average, than in the past.
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    Biology
    Bowman`s capsule and glomerulus together form the
    The Bowman`s capsule and glomerulus together form the renal corpuscle. Blood enters the glomerulus via the afferent arteriole and exits in the efferent arteriole. The endothelium of the glomerulus contains pores, and lies adjacent to the capsule membrane, which also contains pores called filtration slits.
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    Biology
    Chlamydiosis is related with
    It is caused by bacteria called Chlamydia trachomatis. It can infect both men and women. Women can get chlamydia in the cervix, rectum, or throat. Men can get chlamydia in the urethra (inside the penis), rectum, or throat.
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    Biology
    Which of the following organisms can live without oxygen of air?
    Yeast can respire without oxygen. This type of respiration is known as anaerobic respiration.
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    Biology
    Which of the following terms denotes the decomposed organic matter?
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    Homeostasis
    What is meant by fluid balance in the body?
    Unless water intake via food, drink, metabolic production and intravenous infusion exactly matches losses via sweat, respiration, faeces and urine, etc., the body will either dehydrate or “swell up” with water retention.
    Author: rikazzz Comment
    Biology
    Eggs in carpels are usually known as
    A carpel is the female reproductive part of the flower —composed of ovary, style, and stigma— and usually interpreted as modified leaves that bear structures called ovules, inside which egg cells ultimately form.
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    Reproduction System
    Which of the following is not a part of female reproductive system in human beings?
    Vas deferens is a part of the male reproductive system. It is a duct that carries sperms from epididymis to copulatory organ. Along the way, secretions from seminal vesicles and prostate glands are added to the sperms. Ovary, uterus, fallopian tubes are parts of the female reproductive system.
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    Coordination and Control
    Which of the following hormones contain iodine and is required to initiate the metabolism of fat?
    Thyroxine, a hormone that contains iodine, is secreted by the thyroid gland. It increases the rate of cell metabolism and regulates growth. Thyroxine can also be made synthetically for the treatment of hypothyroidism.
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