LGS Mixed Practice Test #578

Question 1

Chloroplasts contain:‌​‍

Accepted Answer

Chlorophyll, thylakoids, stroma, own DNA — Site of photosynthesis. ‌​‍Grana (stacks of thylakoids). Endosymbiotic origin from cyanobacteria.

Answer

Only starch

Answer

Only water

Answer

Only chlorophyll

Question 2

Temporary hardness of water is due to:‌​‍

Accepted Answer

Magnesium bicarbonate — Temporary hardness is caused by bicarbonates of calcium and magnesium, removed by boiling.‌​‍

Answer

Calcium chloride

Answer

Sodium carbonate

Answer

Sodium chloride

Question 3

The smallest prime number is:

Accepted Answer

2 — 2 is the smallest and only even prime.

Answer

0

Answer

1

Answer

3

Question 4

A leading pharmacologist from Kerala is being felicitated for his exemplary contributions to drug discovery and development, particularly for a novel treatment for a rare disease. Which of the following prestigious national awards is most appropriately conferred upon him for his significant achievements in the medical field?

Accepted Answer

B. Dr. B.C. Roy Award — The Dr. B.C. Roy Award is a prestigious national award in India, presented by the Medical Council of India for outstanding contributions in the field of medicine. It specifically recognizes exemplary work in various branches of medicine. The other options are for sports (Arjuna, Dronacharya) and literature (Jnanpith), making them inappropriate for contributions to drug discovery and medical science.

Answer

A. Arjuna Award

Answer

C. Dronacharya Award

Answer

D. Jnanpith Award

Question 5

World Environment Day:‌​‍

Accepted Answer

5 Jun — 5 June.‌​‍

Answer

22 Mar

Answer

22 Apr

Answer

16 Sep

Question 6

Divisible by 8 rule:

Accepted Answer

Last 3 div by 8 — Last three digits.

Answer

Even

Answer

Last 2

Answer

Div by 4

Question 7

Voltaire's famous quote defending free speech: 'I disagree with what you say but I will defend…'

Accepted Answer

Your right to say it, to the death — Voltaire's iconic paraphrase: 'I disapprove of what you say, but I will defend to the death your right to say it.'

Answer

My beliefs

Answer

The truth

Answer

The state

Question 8

A science teacher wants students to understand the principles of buoyancy. Instead of directly lecturing, the teacher provides various objects (wood, metal, plastic), a tub of water, and encourages students to experiment, observe what floats and sinks, and then formulate their own hypotheses and conclusions. This pedagogical approach is most aligned with which theorist's principles?

Accepted Answer

C. Jerome Bruner — Bruner's theory emphasizes discovery learning, where students actively engage with materials and problems to construct their own understanding. By allowing students to experiment and formulate hypotheses, the teacher is facilitating this active, hands-on process, which is a cornerstone of Bruner's approach. Ausubel focuses on meaningful reception learning, Vygotsky on social interaction, and Piaget on stages of cognitive development through individual exploration.

Answer

A. David Ausubel

Answer

B. Lev Vygotsky

Answer

D. Jean Piaget

Question 9

Calcitonin:‌​‍

Accepted Answer

Lowers blood Ca — Produced by thyroid C cells.‌​‍

Answer

No effect

Answer

Renal

Answer

Raises

Question 10

World Refugees Day is:‌​‍

Accepted Answer

20 June — World Refugee Day 20 June (UN). ‌​‍Coincides with African Refugee Day. Highlights plight of 100+ million displaced people globally.

Answer

8 March

Answer

10 December

Answer

24 October

LGS Mixed Practice Test #578