Science and Technology Quiz: Day 117

March 18, 2023

The first enzyme that food comes in contact with is

(A) Amylase
(B) Rennin
(C) Pepsin
(D) Lipase

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Answer : A

Which among the following is the correct increasing order of pH found in human body?

(A) Gastric juice, saliva, blood
(B) Blood, saliva, gastric juice
(C) Saliva, blood, gastric juice
(D) Gastric juice, blood, saliva

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Answer : A

Gastric juice have pH between 1.5 to 3.5

Blood has pH 7.4

Saliva has a pH normal range of 6.2-7.6 with 6.7 being the average pH.

Which of the following is produced in stomach.
1. HCL
2. Trypsin
3. Mucus
Choose correct code:

(A) Only 1
(B) Only 2 and 3
(C) Only 1 and 3
(D) All of these

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Answer : C

Which one is wrong?

(A) Gall bladder produces bile
(B) Bile is the juice of pancreatic cells
(C) Hepato pancreatic duct carries only bile
(D) All are wrong

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Answer : D

Which one of the following is considered as 'good cholesterol' with reference to individuals facing the risk of cardio-vascular diseases and hypertension?

(A) High Density Lipoprotein (HDL)
(B) Low Density Lipoprotein(LDL)
(C) Triglyceride
(D) Fatty acids

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Answer : A

Which one of the following hormones is essential for the uptake of glucose by cells in the human body?

(A) GH
(B) TSH
(C) Insulin
(D) Cortisol

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Answer : C

Dental formula of adult man is

(A) 2123 / 2123
(B) 2122 / 2122
(C) 2132 / 2132
(D) 2132 / 2132

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Answer : A

To prevent the entry of food into the trachea, the opening is guarded by ____________

(A) Epiglottis
(B) Glottis
(C) Hard palate
(D) Soft palate

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Answer : A

Which one of the following vitamins helps in clotting of blood?

(A) Vitamin-A
(B) Vitamin-B6
(C) Vitamin-D
(D) Vitamin-K

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Answer : B

Which of the following pairs of Interaction is/are correctly matched?
Interaction - Type Nature
1. Amensalism - One species is harmed and the other benefits.
2. Commensalism - One species harms the other species without itself being adversely affected.
3. Neutralism - One species do interact with other species but do not affect each other.
Select the correct answer using the code given below:

(A) 1 and 2 only
(B) 3 only
(C) 2 and 3 only
(D) 1, 2 and 3

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Answer : B

Consider the following statements with respect to Convention on Biological Diversity (CBD):
1. It is an international nonbinding treaty with the aim of conservation of biodiversity.
2. Submission of national reports is a mandatory obligation on Parties to CBD.
Which of the statements given above is/are correct?

(A) 1 only
(B) 2 only
(C) Both 1 and 2
(D) Neither 1 nor 2

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Answer : B

UNESCO’s list of world heritage sites includes-
1. Great Himalayan National Park Conservation Area
2. Keoladeo National Park
3. Nanda Devi and Valley of Flowers National Parks
4. Sundarbans National Park
5. Eastern Ghats
Code

(A) 2, 3 and 4
(B) 1, 2, 3 and 4
(C) 1, 2 and 4
(D) 1, 2, 3, 4 and 5

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Answer: B

According to IUCN Red List, which of the following categories are included in the threatened list?
1. Critically endangered
2. vulnerable
3. Endangered
4. Near threatened
Code:

(A) 1 & 2
(B) 2 and 3
(C) 1,2 and 3
(D) 1,2,3 and 4

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Answer :C

Which Protocol/Convention aims to ensure the safe handling, transport and use of living modified organisms (LMOs) resulting from modern biotechnology? Code:

(A) Cartagena Protocol
(B) Nagoya Protocol
(C) Stockholm Convention
(D) Rotterdam Convention

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Answer : A

Rio+20 conference is also known as

(A) United Nations Conference on Sustainable Development
(B) United Nations Convention to Combat Desertification
(C) United Nations Framework Convention on Climate Change
(D) None of the above

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Answer : A