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Chemical Coordination and integration Biology - Chemical Coordination and integration

Uttarakhand Board (UBSE) - STD 11 Science - Biology (Uttarakhand - English Medium). 356 questions in this chapter.

Question types

Chemical Coordination and integration question types

356 questions across 5 question groups — pick any mix to generate a Biology paper with step-by-step answer keys.

356
Questions
5
Question groups
5
Question types
Sample Questions

Chemical Coordination and integration questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
Injury to adrenal cortex is not likely to affect the secretion of which one of the following?
  • A
    Aldosterone.
  • B
    Both Androstenedione and Dehydroepiandrosterone.
  • ✓
    Adrenaline.
  • D
    Cortisol.

Answer: C.

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Q 3M.C.Q (1 Marks)1 Mark
In the body, both the blood sodium and potassium levels are regulated by $..........$
  • A
    Pheromones
  • ✓
    Aldosterone
  • C
    Cortisol
  • D
    Androgens

Answer: B.

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Q 5M.C.Q (1 Marks)1 Mark
According to recent knowledge, the pineal body is considered as:
  • A
    A vestigial organ
  • B
    An organ of intelligence
  • ✓
    An endocrine gland
  • D
    An organ of involuntary action

Answer: C.

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Q 193 Marks Question3 Marks
Give scientific reasons of the following statements:
  1. Adrenals are called glands of emergency.
  2. Parathormone is also called Collip's hormone.
  3. The hormones released by the posterior lobe of pituitary are not its own products.
  4. Endocrine glands directly release their products into the blood.
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Q 235 Marks Questions5 Marks
Lakshita was studying endocrine system for her unit test. She was confused how hormones produce their effects on the target tissue. She read many times, but still did not understand the process. She asked the same to her neighbour Stuti, a biology teacher in a school. Stuti explained her about the hormone receptor complex through diagrams and flowcharts.
  1. Name the two types of receptors.
  2. Why do different hormones use different types of receptors?
  3. What are second messengers? Give two examples?
  4. What values reflect from Lakshita's character?
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