Biology
Differentiate between the following pairs on the basis of what is mentioned in the brackets:
(i) Transpiration and Guttation (place of occurrence)
(ii) Biodegradable waste and Non-biodegradable waste (One example)
(iii) Population control and Swachh Bharat Abhiyan (One objective)
(iv) Osmosis and Active Transport (Substances undergoing movement)
(v) Metaphase and Anaphase (Position of chromosomes)
Answer
(i) Transpiration occurs through the stomata from leaves while guttation occurs through hydathodes from leaf tip.
(ii) Leaves are biodegradable waste while plastic is non-biodegradable waste.
(iii) Population control aims at lowering the growth rate of population and Swachh Bharat Abhiyan aims at cleanliness in surrounding.
(iv) In osmosis, there is movement of solvent or water but in active transport there is movement of ions or salt particles.
(v) In metaphase, the chromosomes are arranged in equatorial plane while in anaphase the chromosomes are moved toward poles.
Related Questions
The diagram below represents an experiment to demonstrate a certain phenomenon in a green plant:
(i) Will the level of mercury in the glass tubing rise or fall? Which conducting tissue of the plant does the glass-tubing represent?
(ii) Define Transpiration.
(iii) How will the rate of the above process differ if the environment of the plant has:
- Less humidity
- High temperature?
(iv) State any two advantages of transpiration to the plant.
(v) Draw a neat labelled diagram of a Plasmolysed cell.
Give the biological reasons for the following statements:
(i) It is advisable to keep green plants in an aquarium.
(ii) Water pollution is a major cause of concern in our country.
(iii) We cannot distinguish colours in dim light.
(iv) Medical discoveries such as antibiotics and vaccinations have indirectly contributed to the sharp rise in human population.
(v) Homo sapiens sapiens is the most highly evolved form of man.
Give appropriate biological technical terms for the following:
(i) The sensory organ in Cochlea.
(ii) Number of live births per 1000 people per year.
(iii) The point of contact between two neurons.
(iv) The accessory gland in human males whose secretion neutralises the acid in the vagina.
(v) Condition when blood sugar level is lowered in the blood.
(vi) Structure which helps in the adjustment of the size of the pupil.
(vii) A surgical method of fertility control in human males.
(viii) Process by which leucocytes migrate through the walls of capillaries.
(ix) A sudden inheritable change in one or more genes.
(x) A non-dividing phase of the cell cycle where more DNA is synthesised.
The figure given below shows a part of a nephron.
Answer the questions that follow:
(i) In which region of the kidney is the above structure present?
(ii) Label the parts numbered 1 to 4.
(iii) What is the technical term for the process that occurs in part 3?
(iv) Why is fluid X not called urine? Justify your answer.
(v) Draw a neat, labelled diagram of the urinary system of man.