General Science - Biology MCQs

71. Uptake of glucose in the intestines in humans can take place when ___:

[A] The concentration of glucose in blood is more than intestines
[B] The concentration of glucose in blood is less than intestines
[C] The concentration of glucose in blood is equal to intestines
[D] In all the above conditions

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72. Which among the following is / are correct deference(s) between an artery and a vein?

Generally, an artery has thick muscular wall while a vein has thin muscular wall
Generally, arteries are located deeper in the body, while veins are closer to the skin
Generally, valves are absent in arteries while present in veins

Select the correct option from the codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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	Arteries	Veins
Oxygen Concentration	Arteries carry oxygenated blood (with the exception of the pulmonary artery and umbilical artery).	Veins carry deoxygenated blood (with the exception of pulmonary veins and umbilical vein).
Types	Pulmonary and systemic arteries.	Superficial veins, deep veins, pulmonary veins and systemic veins
Direction of Blood Flow	From the heart to various parts of the body.	From various parts of the body to the heart.
Anatomy	Thick, elastic muscle layer that can handle high pressure of the blood flowing through the arteries.	Thin, elastic muscle layer with semilunar valves that prevent the blood from flowing in the opposite direction.
Overview	Arteries are red blood vessels that carry blood away from the heart. resistance vessels	Veins are blue blood vessels that carry blood towards the heart. capacitance vessels
Disease	artherogenesis- myocardial ischemia	deep vein thrombosis
Thickest layer	Tunica media	Tunica adventitia
Location	Deeper in the body	Closer to the skin
Rigid walls	more rigid	collapsible
Valves	Aren't present (except for semi-lunar valves)	Are present, especially in limbs
Source: http://www.diffen.com/difference/Arteries_vs_Veins

73. When you throw a ball with an angle to the horizontal (projectile); the ball has __:

[A] Uniform velocity in horizontal direction but uniform acceleration in vertical direction
[B] Uniform acceleration in horizontal direction but uniform velocity in vertical direction
[C] Uniform acceleration in both horizontal and vertical directions
[D] Uniform velocity in both horizontal and vertical directions

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74. Consider the following statements about Phytomining:

It is a way to mine plants for chemicals that can be used for manufacturing and industrial purposes
This method has been used worldwide in recent years primarily to harvest germanium

Which of the above statements is/are correct?

[A] 1 Only
[B] 2 Only
[C] Both 1 & 2
[D] Neither 1 nor 2

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75. Consider the following differences between cyanobacteria and bacteria:

While cyanobacteria possess chlorophyll, most bacteria do not contain chlorophyll
Both cyanobacteria and bacteria possess the ability to fix nitrogen

Which of the above statements is/are correct?

[A] 1 Only
[B] 2 Only
[C] Both 1 & 2
[D] Neither 1 nor 2

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76. Which of the following diseases is spread by mosquitoes but is not a viral disease?

[A] Meningitis
[B] Dengue fever
[C] Yellow fever
[D] Filariasis

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77. Consider the following statements about different types of enzymes:

Proteases enzymes break down proteins and peptides
Maltase enzyme catalyses the hydrolysis of starch into sugars
Renin enzyme catalyzes the conversion of a plasma protein called angiotensinogen

Which of the above statements is/are correct?

[A] 1 & 3 Only
[B] 2 & 3 Only
[C] 1 & 2 Only
[D] 1, 2 & 3

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78. Consider the following glands:

Pancreas
Pituitary Gland
Hypothalamus

Which of the above are endocrine glands?

[A] 1 & 2 Only
[B] 3 Only
[C] 1, 2 & 3
[D] None

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79. Consider the following statements:

Leukemia causes overproduction of white blood cells
Patients with leukemia are treated with chemotherapy

Which of the above statements is/are correct?

[A] 1 Only
[B] 2 Only
[C] Both 1 & 2
[D] Neither 1 nor 2

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80. Which of the following organs of human body secrete digestive enzymes?

Salivary glands
Liver
Small intestine
Stomach

Select the correct option from codes given below:

[A] 1, 2 & 3 Only
[B] 2, 3 & 4 Only
[C] 1, 3 & 4 Only
[D] 1, 2, 3 & 4

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