Plus 2 Lecturer Mixed Practice Test #582

Question 1

The body maintains a narrow pH range (7.35-7.45) in the blood through various buffer systems. Which of the following is the most significant extracellular buffer system responsible for regulating blood pH by buffering metabolic acids?

Accepted Answer

C. Bicarbonate buffer system — The bicarbonate buffer system, involving carbonic acid and bicarbonate ions, is the most crucial extracellular buffer system. It effectively neutralizes metabolic acids and bases, working in conjunction with the respiratory system (CO2 excretion) and renal system (bicarbonate reabsorption/excretion) to maintain blood pH.

Answer

A. Phosphate buffer system

Answer

B. Protein buffer system

Answer

D. Ammonia buffer system

Question 2

Malayala Manorama founded:‌​‍

Accepted Answer

1888 — Manorama 1888.‌​‍

Answer

1900

Answer

1920

Answer

1947

Question 3

Pokkali rice cultivation is unique to which region?‌​‍

Accepted Answer

Coastal Ernakulam/Thrissur/Alappuzha — Pokkali is a saline-tolerant rice variety cultivated in the coastal waterlogged fields of Ernakulam, Thrissur, and Alappuzha.‌​‍

Answer

Wayanad

Answer

Idukki

Answer

Kuttanad

Question 4

The ABO blood grouping system was discovered by:

Accepted Answer

Karl Landsteiner — Landsteiner discovered ABO (1901) — Nobel Prize 1930.

Answer

Mendel

Answer

Pasteur

Answer

Watson

Question 5

C. Wright Mills's concept of 'Sociological Imagination' (1959):‌​‍

Accepted Answer

Seeing connection between personal troubles and public issues — Mills: quality of mind that sees individual biography within historical and social context. ‌​‍Distinguishes sociology.

Answer

Pure theory

Answer

Individual creativity

Answer

Daydreaming

Question 6

Which of the following statements best describes a key characteristic of intrinsic motivation in a learning context?

Accepted Answer

C. It involves engaging in an activity for its inherent satisfaction and enjoyment. — Intrinsic motivation is defined by the internal desire to perform an activity for its own sake, deriving satisfaction from the process itself. Options A, B, and D describe characteristics of extrinsic motivation, where the drive comes from external factors or consequences rather than internal enjoyment or satisfaction from the activity itself.

Answer

A. It relies on external rewards like grades or prizes.

Answer

B. It diminishes once the external reward is removed.

Answer

D. It is primarily driven by avoiding punishment or negative consequences.

Question 7

'RSVP' means:‌​‍

Accepted Answer

Please reply (Répondez s'il vous plaît) — French abbreviation for 'please reply'.‌​‍

Answer

Reply please

Answer

Ready to start

Answer

Reserved

Question 8

A ratio of 3:5 expressed as a percentage for each part of total:‌​‍

Accepted Answer

37.5% and 62.5% — 3/8 × 100 = 37.5%; 5/8 × 100 = 62.5%.‌​‍

Answer

40% and 60%

Answer

25% and 75%

Answer

30% and 70%

Question 9

Kerala literacy campaign year:

Accepted Answer

1990 — Total Literacy Campaign 1990 — first state fully literate.

Answer

1991

Answer

1989

Answer

1995

Question 10

Blood pH:

Accepted Answer

7.35-7.45 — Slightly alkaline.

Answer

6.0

Answer

7.8

Answer

8.0

Plus 2 Lecturer Mixed Practice Test #582