3
Q:

The group of crop plant that are vegetatively propagated is:

 

A) potato,papaya and banana B) Sugarcane,potato and banana
C) groundnut,drumstick and cashew nut D) Onion,coriander and lime

Answer:   B) Sugarcane,potato and banana



Explanation:
Subject: Biology
Exam Prep: Bank Exams
Q:

Which of the following classes of animals has/have three-chambered heart?

A) Pisces and Amphibia B) Amphibia and Reptilia
C) Reptilia only D) Amphibia only
 
Answer & Explanation Answer: B) Amphibia and Reptilia

Explanation:

Mammalian and avian hearts have four chambers two atria and two ventricles.Amphibians and reptiles, by contrast, have a three-chambered heart. The three-chambered heart consists of two atria and one ventricle.Fish possess the simplest type of true heart a two-chambered organ composed of one atrium and one ventricle.

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1 1046
Q:

Which one of the following statements about lymph is correct?

A) Lymph is formed due to leakage of blood through capillaries. B) Lymph contains blood cells such as RBC.
C) Lymph is also circulated by the blood circulating heart. D) Lymph only transports hormones.
 
Answer & Explanation Answer: C) Lymph is also circulated by the blood circulating heart.

Explanation:

The lymphatic system is a complex system of fluid drainage and transport, and immune response and disease resistance. Fluid that is forced out of the bloodstream during normal circulation is filtered through lymph nodes to remove bacteria, abnormal cells and other matter. This fluid is then transported back into the bloodstream via the lymph vessels. Lymph only moves in one direction, toward the heart.

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1 1812
Q:

Which of the following function is performed by the kidneys in the human body?

A) Excretion B) Respiration
C) Digestion D) Transportation
 
Answer & Explanation Answer: A) Excretion

Explanation:
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1 989
Q:

Which of the following carries oxygen to various parts of human body?

A) Red blood cells B) White blood cells
C) Plasma D) Nerves
 
Answer & Explanation Answer: A) Red blood cells

Explanation:
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1 950
Q:

A protein is synthesized in the endoplasmic reticulum bound ribosomes and it targets to the inner thylakoid space of chloroplast. How many double-layered membrane layers it has to pass to reach its destination?

A) 2 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: B) 3

Explanation:

There are 3 double-layered membrane layers, which the protein has to pass to reach its destination.

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5 1691
Q:

Lysosome is formed from which of the following cell organelles?

A) Nucleus B) Endoplasmic reticulum
C) Golgi bodies D) Ribosomes
 
Answer & Explanation Answer: C) Golgi bodies

Explanation:

•Lysosomes are spherical membranous sacs of enzymes.

•The lysosome membrane helps to keep its internal compartment acidic and separates the digestive enzymes from the rest of the cell.

•Lysosomes are formed by budding from the Golgi complex.

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4 1021
Q:

Which one of the following pairs about organ/part that helps in locomotion is not correctly matched?

A) Euglena : Flagellum B) Paramecium : Cilia
C) Nereis : Pseudopodia D) Starfish : Tubefeet
 
Answer & Explanation Answer: C) Nereis : Pseudopodia

Explanation:

Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor.

The paramecium uses its cilia to sweep the food along with some water into the cell mouth after it falls into the oral groove.

The underside of the starfish is covered with hundreds of tube feet, which it uses for walking around, for attaching tightly to rocks, and for holding on to prey.

Nereis possess setae and parapodia for locomotion

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1 1599
Q:

In which one of the following types of connective tissues in animals does fat get stored?

A) Adipocyte B) Chondrocyte
C) Osteocyte D) Reticulocyte
 
Answer & Explanation Answer: A) Adipocyte

Explanation:

Adipocytes are the major source of leptin production, and plasma leptin concentrations directly correlate with the amount of total body fat.

Adipocytes are highly specialized cells that play a crucial role in the energy balance of most vertebrates.

Adipocytes convert excess energy to tri-acylglycerol and deposit it during feeding in preparation for periods of food deprivation.

Adipocytes may become enlarged by increased fat storage

 

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2 1178