1. The elements which are found in Haemoglobin, Chlorophyll, Chalcopyrite & Vitamin B12 are respectively as follows__________?
[A] Iron, Copper, Magnesium, Cobalt
[B] Iron, Magnesium, Copper, Cobalt
[C] Iron, Cobalt, Copper, Magnesium
[D] Magnesium, Iron, Cobalt, Copper
Show Answer
Correct Answer: B [Iron, Magnesium, Copper, Cobalt]
Notes:
The elements which are found in Haemoglobin, Chlorophyll, Chalcopyrite & Vitamin B12 are respectively as follows: Iron, Magnesium, Copper, Cobalt.
2. A chloroplast without cell wall is ________ ?
[A] aleuroplast
[B] amyloplast
[C] protoplast
[D] photoplast
Show Answer
Correct Answer: C [protoplast]
Notes:
A chloroplast without cell wall is protoplast. Chloroplasts are organelles that perform photosynthesis. The photosynthetic pigment chlorophyll captures the energy from sunlight, converts it, and stores it in the energy-storage molecules ATP and NADPH while freeing oxygen from water in plant and algal cells.
3. From which part of the plant Glycyrrhiza glabra , Liquorice or Mulethi is obtained?
[A] Leaves
[B] Roots
[C] Fruits
[D] Stem
Show Answer
Correct Answer: B [Roots]
Notes:
Mulethi is powdered liquorice root and is an effective expectorant used since ancient times in Ayurvedic medicines. Its is also used in Jastimadhu which is a tooth powder. many cough syrups today contain Liquorice as an ingredient. It is also used in mouth ulcers and peptic ulcers.
4. Which among the following element in the human body / organ makes the main basis of working of the MRI (Magnetic resonance imaging)?
[A] Nitrogen
[B] Hydrogen
[C] Calcium
[D] Sodium
Show Answer
Correct Answer: B [Hydrogen]
Notes:
Hydrogen in the human body / organ makes the main basis of working of the MRI (Magnetic resonance imaging). It is a medical imaging technique which is used in radiology to form pictures of the anatomy and the physiological processes of the body.
5. Ornithophily refers to the pollination through which among the following?
[A] Wind
[B] Insects
[C] Birds
[D] Water
Show Answer
Correct Answer: C [Birds]
Notes:
Ornithophily refers to the pollination through birds. Birds which are involved in ornithophily are specialist nectarivores with brushy tongues and long bills, that are either capable of hovering flight or light enough to perch on the flower structures.
6. The “Deoxyribose” which is a part of DNA and a constituent of hereditary material is a ___:
[A] Nucleic Acid
[B] Protein
[C] Lipid
[D] Carbohydrate
Show Answer
Correct Answer: D [ Carbohydrate]
Notes:
Deoxyribose is a Monosaccharide sugar.
7. Chickpeas when soaked in water can swell up to three times their volume. The phenomenon involved in this is called _?
[A] Imbibition
[B] Osmosis
[C] Reverse Osmosis
[D] Diffusion
Show Answer
Correct Answer: A [ Imbibition]
Notes:
The movement of water through semipermeable membrane from region of higher concentration to region of lower concentration is called Osmosis. The uptake or absorbtion of water by solid substance without forming solution is called Imbibition.
8. Synapse gap is present between which of the following?
[A] Brain and Spinal cord
[B] Two eyes
[C] Two Kidneys
[D] Two neurons
Show Answer
Correct Answer: D [Two neurons]
Notes:
Information from one neuron flows to another neuron across a synapse. The synapse contains a small gap separating neurons. The synapse consists of: a presynaptic ending that contains neurotransmitters, mitochondria and other cell organelles.
9. Who among the following devised the Technique IVF(In vitro Fertilization)?
[A] Robert Edwards
[B] Dr. Martin Cooper
[C] Edward Jenner
[D] Sir Frank Whittle
Show Answer
Correct Answer: A [Robert Edwards]
Notes:
The early influences on Robert Edwards’ approach to the scientific research that led to human IVF are described. He founded the first IVF programme for infertile patients and trained other scientists in their techniques.
10. Which among the following branches of science deals with the scientific study of interaction of soils with vegetative matter?
[A] Pedology
[B] Petrology
[C] Hydrology
[D] Edaphology
Show Answer
Correct Answer: D [Edaphology]
Notes:
Edaphology is one of the two branches of soil sciences which deals with the scientific study of influence of soils on the vegetative matter such as plants.
