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Current Affairs January 2024

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4

Human blood is oxygenated and purified in the

A. heart

B. lungs

C. liver

D. kidneys

Correct Answer :

B. lungs


Related Questions

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4

Digestion of proteins starts in the

A. mouth

B. stomach

C. duodenum

D. intestine

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4

Which of the following contains the highest protein content per gram?

A. Groundnut

B. Soyabean

C. Apple

D. Wheat

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4

Malarial parasite is brought to human host by

A. male anopheles mosquito

B. female anopheles mosquito

C. male culex

D. female culex

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4

Rate of mutation can be increased in plants by

A. More manure

B. More pesticides

C. X-ray

D. More light

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4

The metallic part of haemoglobin is

A. copper

B. molybdenum

C. nickel

D. iron

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4

Valves are present inside

A. arteries

B. capillaries

C. veins

D. aorta

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4

Rh+ blood is due to genes which are

A. dominant

B. recessive

C. codominant

D. neutral

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4

When the earth was formed it had an atmosphere with

A. Hydrogen, Oxygen and Nitrogen

B. Water Vapour, Hydrogen and Oxygen

C. Oxygen, Carbondioxide and Nitrogen

D. Water Vapour, Ammonia and Methane

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4

Which one of the endocrine glands disappears after puberty?

A. Thyroid

B. Thymus

C. Adrenals

D. Pituitary

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4

Valve a are present inside

A. Arteries

B. Capillaries

C. Veins

D. Lymph vessels

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4

Lamarck's theory of inheritance of acquired characters was challenged by

A. August Weismann

B. Hugo de Vries

C. Herbert- Spencer

D. Carl Linnaeus

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4

The deficiency of Vitamin A which leads to poor vision during night is termed

A. nyctolopia

B. myopia

C. glaucoma

D. colour blindness

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4

The stones formed in human kidney consist mostly of

A. calcium oxalate

B. sodium acetate

C. magnesium

D. calcium

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4

At the end of a reaction enzymes are

A. left as they are

B. reduced

C. increased

D. neutralised

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4

Accepted theory for the origin of life is

A. Cosmozoic theory

B. Biogenesis

C. Abiogenesis

D. Oparin's theory

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4

Plant diseases are spread by

A. insects

B. man

C. wind

D. All the above

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4

Savannah is

A. grass land

B. desert

C. forest

D. snow clad mountains

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4

The brain is covered by

A. meninges

B. bone

C. skin

D. All the above

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4

The wall of the heart is made of programmed cell death is known as

A. voluntary muscles

B. involuntary muscles

C. cardiac muscles

D. skeletal muscles

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4

The organ that produces antibodies in our body is

A. pancreas

B. salivary gland

C. liver

D. gonads

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4

Lactose and Rennin, the enzymes required to digest milk, disappear in the human body by the age of _______ years.

A. 2

B. 3

C. 5

D. 8

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4

Blood platelets are found in

A. all vertebrates

B. all chordates

C. mammals only

D. birds and mammals

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4

Antisnake venom is prepared by

A. Pasteur institute

B. Hoffkine's institute

C. Birla's institute

D. Indian Science Institute

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4

The mouth of a river opening into the sea is termed as

A. shore line

B. littoral zone

C. continental shelf

D. estuary

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4

In phototropism, auxins

A. Promote growth of cells

B. Inhibit cell division

C. Inhibit growth of cells

D. Stimulate differential growth of cells

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4

Fledgling is a term often used to denote the young one of a

A. bird

B. fox

C. dog

D. man

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4

Mutations could be created by X-rays. This was found by

A. Muller

B. Morgan

C. Meyer

D. Flemming

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4

The waste product In the urine of man is

A. urea

B. uric acid

C. ammonia

D. non-nitrogenous

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4

What do you mean by lentic biota?

A. Plants and animals in lakes and ponds

B. Plants and animals in forest

C. Plants and animals in sea water

D. Desert plants and animals

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4

Sleeping sickness in man is caused by the organism

A. plasmodium

B. entamoeba

C. giardia

D. trypanosome