What is Active transport?

Arrange and rewrite the terms in each group in correct order to be in a logical sequence beginning with the term that is underlined: (a) Snake, Rabbit, Cabbage, Hawk. (b) Xylem, Soil water, Cortical cells, Root hair. (c) Receptor, Response, Effector, Spinal Cord. (d) Fovea, Lens, Cornea, Conjunctiva. (e) Testis, Urethra, Sperm duct, Epididymis.

Deplasmolysis occurs when a plasmolysed cell is placed in: (a) Concentrated salt solution (b) Tap water (c) Concentrated sugar solution (d) Hypertonic salt solution

Mention two adaptations in roots for absorption of water from the soil.

Given below is the diagram of a plasmolysed cortical cell of a root. Copy the diagram and label the following parts: (a) Cytoplasm (b) Hypertonic solution (c) Plasma membrane

Osmosis involves the movement of water molecules through a: (a) Freely permeable membrane (b) Cell wall (c) Selectively permeable membrane (d) Impermeable membrane

Given below is a picture of a tree. Mention the scientific phenomena occurring in the parts labelled (a), (b) and (c).

Varun's mother added plenty of salt to the mango pickle she made. This is to: A. enhance the colour of the pickle. B. inhibit the growth of microorganisms. C. increase the nutritional value. D. create a hypertonic solution. (a) A and C (b) B and C (c) C and D (d) B and D

Name the following: (a) Unicellular outgrowths of the epidermis of roots. (b) The defect of the eye in which some parts of an object are focused while other parts appear blurred. (c) The tropic movement in response to chemicals. (d) The main nitrogenous waste in the human body. (e) The attachment of the fertilized ovum to the wall of the uterus.

Assertion (A): A turgid plant cell is in a balanced state. Reason (R): In a turgid cell, turgor pressure and wall pressure are equal and in the same direction. (a) A is True and R is False (b) A is False and R is True (c) Both A and R are True (d) Both A and R are False

Rachna is an expert gymnast on the balance beam. She has been vigorously practising for the Olympic Games. Lately, she has been experiencing dizziness and losing her balance during the practice sessions. (a) Which part of the membranous labyrinth is responsible for maintaining the body balance on the beam? (b) Which type of balance is maintained by the structure mentioned in (a)? [Space for diagram]

Differentiate between the functions of Urethra and Uterus.