Biology-Objective Related Question Answers
601. What are the chief excretory organs of vertebrates?
Kidney
602. The path through which a stimulus passes in a reflex action?
Reflex arc
603. Loss of ability of the body or some parts of the body to move; respond to stimuli or function is?
Paralysis
604. What occurs when a blood vessel in the brain ruptures?
Cerebral haemorrhage
605. The colour of the skin is due to?
Melanin
606. The nitrogeneous waste produced in our body?
Urea
607. Which substance is very poisonous to the cells even in traces?
Ammonia
608. Which blood vessel carries blood to the kidneys?
Renal artery
609. Which blood vessel takes away blood from the kidneys?
Renal vein
610. Each nephron open into a large tubule called?
Collecting duct
611. What are the components of urine?
Urine contains about 95% of water and 5% of urea; salts and other waste product
612. What do you mean by osmoregulation?
Regulation of the water content in the body of an organism is known as osmoregulation
613. What is ADH?
ADH is the antidiuretic hormone secreted by the pituitary gland which helps in osmo regulation.
614. What is the main symptom of diabetes insipidus?
The person suffering from diabetes insipidus loses plenty of water through his urine
615. What is nephritis?
Nephritis is the inflammation of the kidney
616. What is the functional unit of chromosome?
Gene
617. Name the instrument to record the brain waves:?
Electro Encephalo Graph
618. Where in the body would you find 'carpals' and 'phalanges'?
They are bones in the hand
619. What is the 'fontanelle'?
A soft area of cartilage on a baby’s head where the skull bones have not yet joined
620. Which tube begins from the kidney and opens into the urinary bladder?
Ureter
621. What is the bunch of capillaries seen inside the Bowman's capsule called?
Glomerulus
622. Deficiency of what causes the diabetes insipidus?
ADH
623. What is ‘epidermis’?
The outermost layer of the skin
624. The deficiency of insulin causes a condition of?
Diabetes mellitus
625. What is formed when ammonia is combined with carbon dioxide?
Urea
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