LGS Mixed Practice Test #85

Question 1

Lipase enzymes digest:

Accepted Answer

Fats (lipids) — Pancreatic lipase hydrolyses triglycerides into fatty acids + glycerol.

Answer

Carbohydrates

Answer

Proteins

Answer

Nucleic acids

Question 2

'The Last Supper' is a famous fresco painted by which great Renaissance artist?‌​‍

Accepted Answer

Leonardo da Vinci — Leonardo da Vinci's mural at Santa Maria delle Grazie, Milan (1495-98).‌​‍

Answer

Titian

Answer

Michelangelo

Answer

Donatello

Question 3

Vitamin B1 (Thiamine) plays a crucial role as a coenzyme in several metabolic pathways. Which of the following enzymes typically requires Thiamine pyrophosphate (TPP) as a cofactor?

Accepted Answer

B. Pyruvate dehydrogenase complex — Thiamine pyrophosphate (TPP), derived from Vitamin B1, is an essential coenzyme for several enzymes involved in carbohydrate metabolism, particularly those catalyzing decarboxylation reactions. The pyruvate dehydrogenase complex, which converts pyruvate to acetyl-CoA, is a classic example that requires TPP. The other enzymes listed have different coenzyme requirements.

Answer

A. Lactate dehydrogenase

Answer

C. Glucose-6-phosphate dehydrogenase

Answer

D. Succinate dehydrogenase

Question 4

Latent heat of fusion of ice at 0°C is approximately:‌​‍

Accepted Answer

80 cal/g (334 J/g) — Fusion: 80 cal/g. Vaporisation of water at 100°C: 540 cal/g (2260 J/g).‌​‍

Answer

100 cal/g

Answer

1 cal/g

Answer

540 cal/g

Question 5

A patient in the psychiatric ward is experiencing significant anxiety due to conflicting desires: wanting to engage in impulsive, inappropriate behaviors (e.g., shouting obscenities) and knowing that such actions would lead to negative consequences. According to Freud's structural model of the mind, which component is primarily responsible for mediating these conflicting impulses and interacting with reality?

Accepted Answer

C. Ego — The Ego, operating on the reality principle, mediates between the impulsive demands of the Id (which seeks immediate gratification) and the moralistic dictates of the Superego (which represents societal and parental standards), while also considering external reality. The Ego's role is to find realistic and socially acceptable ways to satisfy desires. The unconscious mind is a broader concept encompassing all three structures.

Answer

A. Id

Answer

B. Superego

Answer

D. Unconscious mind

Question 6

Swathi Thirunal ruled:

Accepted Answer

Travancore — Musician king of Travancore (1829-46).

Answer

Cochin

Answer

Malabar

Answer

Kochi

Question 7

The thyroid gland's hormone, thyroxin, contains:

Accepted Answer

Iodine — Thyroxin (T4) is iodinated tyrosine; iodine deficiency causes goitre/hypothyroidism.

Answer

Iron

Answer

Zinc

Answer

Copper

Question 8

The Punnapra-Vayalar uprising took place in which year?‌​‍

Accepted Answer

1946 — The Punnapra-Vayalar uprising against the Travancore government took place in October 1946.‌​‍

Answer

1921

Answer

1930

Answer

1957

Question 9

Kerala Rural Development Programme funds:

Accepted Answer

All — Central and state schemes.

Answer

DCP

Answer

MGNREGA + state

Answer

Unknown

Question 10

A high school teacher wants to introduce the concept of 'democracy' to students. Which strategy aligns BEST with Ausubel's theory of meaningful learning?

Accepted Answer

B. Encouraging students to compare democracy with other forms of government they are familiar with, using an advance organizer. — Ausubel's theory emphasizes the use of advance organizers to connect new information with existing cognitive structures (subsumption). Option B aligns by encouraging students to relate the new concept of democracy to their prior knowledge of other government types, facilitating meaningful learning. Options A and D are rote learning approaches, while option C lacks structured cognitive connection.

Answer

A. Asking students to memorize the definition of democracy from a textbook.

Answer

C. Having students role-play a democratic election without prior explanation.

Answer

D. Assigning a group project to list all democratic countries in the world.

LGS Mixed Practice Test #85