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What is the consequence of an 'alarming growth rate' of population, as described in the context?
The text explains: 'Such an alarming growth rate could lead to an absolute scarcity of even the basic requirements, i.e., food, shelter and clothing, in spite of significant progress made in those areas.'
What is considered the 'most important step' to overcome the problem of rapid population growth according to the provided text?
The text states: 'The most important step to overcome this problem is to motivate smaller families by using various contraceptive methods.'
Which of the following parts of an angiosperm flower are considered accessory organs?
According to the NCERT text, 'Calyx and corolla are accessory organs, while androecium and gynoecium are reproductive organs.'
A typical angiosperm embryo sac at maturity is characterized by:
The NCERT text states: 'Thus, a typical angiosperm embryo sac, at maturity, though 8-nucleate is 7-celled.'
What is the primary function of the filiform apparatus in the embryo sac?
The NCERT text mentions: 'The synergids have special cellular thickenings at the micropylar tip called filiform apparatus, which play an important role in guiding the pollen tubes into the synergid.'
Which of the following correctly describes the position of the ovary in hypogynous flowers?
The NCERT text states: 'In the hypogynous flower the gynoecium occupies the highest position while the other parts are situated below it. The ovary in such flowers is said to be superior, e.g., mustard, china rose and brinjal.'
In which type of placentation are ovules borne on the inner wall of the ovary or peripheral part, with the ovary often becoming two-chambered due to false septum formation?
According to the NCERT text: 'In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part. Ovary is one-chambered but it becomes two-chambered due to the formation of the false septum, e.g., mustard and Argemone.'
Identify the characteristic feature of actinomorphic flowers from the options below.
The NCERT text describes actinomorphic flowers as: 'When a flower can be divided into two equal radial halves in any radial plane passing through the centre, it is said to be actinomorphic, e.g., mustard, datura, chilli.'
What is the primary role of petals in a flower?
The NCERT text specifies: 'Petals are usually brightly coloured to attract insects for pollination.'
Which of the following best defines placentation?
As per NCERT: 'Placentation: The arrangement of ovules within the ovary is known as placentation.'
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.