LGS Mixed Practice Test #186

Question 1

Systemic circulation:

Accepted Answer

Heart to body — Heart-body-heart.

Answer

Heart to lungs

Answer

Within heart

Answer

Lung alone

Question 2

Miller-Urey experiment (1953) showed:‌​‍

Accepted Answer

Abiotic synthesis of amino acids from inorganic gases — NH₃, CH₄, H₂, H₂O + spark → amino acids. ‌​‍Supports Oparin-Haldane hypothesis of chemical evolution.

Answer

DNA structure

Answer

Antibiotics

Answer

Cloning

Question 3

Amoeba is:

Accepted Answer

Protista — Unicellular protist.

Answer

Monera

Answer

Fungi

Answer

Animalia

Question 4

Bekal Fort is in:

Accepted Answer

Kasaragod — Bekal Fort — largest fort in Kerala, Kasaragod district.

Answer

Kannur

Answer

Kozhikode

Answer

Thrissur

Question 5

Name the world football player who got the FIFA Ballon d'Or Award (2015):‌​‍

Accepted Answer

Messi — Lionel Messi won the 2015 FIFA Ballon d'Or (5th time).‌​‍

Answer

Rooney

Answer

Neymar

Answer

Zidane

Question 6

Sucrose (table sugar) is:

Accepted Answer

Disaccharide of glucose + fructose (α-1,β-2 glycosidic) — Non-reducing sugar (both anomeric C involved in bond). Hydrolysis (invertase) gives invert sugar.

Answer

Monosaccharide

Answer

Polysaccharide

Answer

Amino acid

Question 7

Jnanpith Award winners from Kerala (count):

Accepted Answer

5 — G. Sankara Kurup, S.K. Pottekkatt, Thakazhi, M.T. Vasudevan Nair, O.N.V. Kurup = 5.

Answer

3

Answer

4

Answer

6

Question 8

Which of the following cellular compartments is the primary site for the metabolic pathway of glycolysis?

Accepted Answer

B. Cytosol — Glycolysis is the metabolic pathway that converts glucose into pyruvate, generating ATP and NADH. This crucial process occurs exclusively in the cytosol of the cell, independent of oxygen. The mitochondrial matrix is where the Krebs cycle and oxidative phosphorylation take place, while the endoplasmic reticulum is involved in protein and lipid synthesis.

Answer

A. Mitochondrial matrix

Answer

C. Endoplasmic reticulum

Answer

D. Lysosomes

Question 9

What are Kerala's physiographic zones?‌​‍

Accepted Answer

Highland, Midland, Lowland — West: lowland (coast 590 km). ‌​‍Middle: midland (rice, coconut). East: highland (Western Ghats).

Answer

Only coast

Answer

Only hills

Answer

Only plains

Question 10

Sree Narayana Guru was born in:‌​‍

Accepted Answer

1856 — Sree Narayana Guru was born on 20 August 1856 at Chempazhanthy, Thiruvananthapuram.‌​‍

Answer

1853

Answer

1863

Answer

1870

LGS Mixed Practice Test #186