Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

 Enlist the organs involved in endomembrane system.

Answer»
  •  Endoplasmic reticulum 
  •  Golgi bodies 
  •  Lysosomes 
  •  Vacuole
2.

Explain the stages of Calvin cycle

Answer»

The Calvin cycle can be described under three stages: carboxylation, reduction and regeneration.

1. Carboxylation – Carboxylation is the fixation of CO2 into a stable organic intermediate. Carboxylation is the most crucial step of the Calvin cycle where CO2 is utilised for the carboxylation of RuBP.

This reaction is catalysed by the enzyme RuBP carboxylase which results in the formation of two molecules of 3-A. Since this enzyme also has an oxygenation activity it would be more correct to call it RuBP carboxylase-oxygenase or RuB is CO.

2. Reduction – These are a series of reactions that lead to the formation of glucose. The steps involve utilisation of 2 molecules of ATP for phosphorylation and two of NADPH for reduction per CO2 molecule fixed. The fixation of six molecules of CO2 and 6 turns of the cycle are required for the removal of one molecule of glucose from the pathway.

3. Regeneration – Regeneration of the CO2 acceptor molecule RuBP is crucial if the cycle is to continue uninterrupted. The regeneration steps require one ATP for phosphorylation to form RuBP.

3.

After the digestive process in an autophagolysosome is over, it is termed as _______________(a) autophagosome(b) residual body(c) endosome(d) peroxisome

Answer» Correct option is (b) residual body

Best explanation: Autophagolysosome is the structure that forms by the fusion of lysosome with double-membrane wrapped organelle. After the digestive process is over this structure is called residual body which is then ready for exocytosis.
4.

Classify plants based on photoperiodism

Answer»
  • Long day plants – the plants in which the flowering requires the exposure of light for a period exceeding a well defined critical duration 
  • Short day plants – the flowering in plants require the exposure of light for a period less than a well defined critical duration 
  • Day-neutral plants – the flower induction occur in these plants irrespective of the critical duration of light exposure
5.

Reactions that lose heat are termed as _____________(a) endothermic(b) exothermic(c) chemical(d) physical

Answer» Right answer is (b) exothermic

Explanation: Energy can neither be created nor be destroyed. It is only transduced from one form into another. Heat is also a form of energy; reactions in which heat is lost to the surroundings are termed as exothermic reactions and those in which heat is gained from the system are termed as endothermic reactions.
6.

What are the special features of the seeds which get dispersed by wind ?

Answer» The spacial features of seed dispersed are

1. Some seeds are very light . example orchid .

2. Some have hair like structures . example cotton .
7.

Which of the following disaccharides have beta (1->4) bond?(a) Maltose and Sucrose(b) Maltose and Isomaltose(c) Lactose and Cellobiose(d) Sucrose and Cellobiose

Answer» The correct option is (c) Lactose and Cellobiose

To explain: Among the disaccharides, sucrose, maltose and isomaltose have alpha(1->4) glycosidic bond. However, lactose, lactulose and sucrose have beta(1->4) glycosidic linkage.
8.

Urea A. And glucose have similar molar concentrations in normal blood. B. Concentration rises in tubular fluid as the glomerular filtrate passes down the nephron. C. Is actively secreted by the renal tubular cells into the tubular fluid. D. Concentration in blood may rise ten-fold after a high protein meal. E. Causes a diuresis when its blood concentration is increased.

Answer»

A. True Both are around 5 mmol/litre. 

B. True The urinary concentration of urea is many times that in plasma. 

C. False 50 per cent of the filtered urea is passively reabsorbed; the rise in tubular concentration can be explained by the reabsorption of water. 

D. False It rises but would not double in concentration. 

E. True It causes an osmotic diures is. 

9.

Voluntary micturition A. Depends on the integrity of a lumbar spinal reflex arc. B. Is not possible after sensory denervation of the bladder. C. Involves stimulation of the detrusor muscle in the bladder by autonomic sympathetic nerves. D. Is normally accompanied by some reflux of bladder contents into the ureters. E. Is inhibited during ejaculation.

Answer»

A. False The reflex centres are in the sacral cord; their activity is modulated by higher centres. 

B. True This breaks the reflex arc. 

C. False Parasympathetic nerves are motor to the detrusor muscle. 

D. False Valves where the ureters enter the bladder do not allow such reflux. 

E. True During ejaculation, sympathetic activity constricts the bladder neck sphincter and prevents retrograde ejaculation of semen into the bladder.

10.

Brain controls the kidney action. 1. Name the hormones involved in this. 2. How do they act on kidney?

Answer»

1. Antidiuretic Hormone (ADH)

2. The pituitary gland release the hypothalamic hormone ADH and its is transported to the kidney. The presence of ADH makes the tubules permeable to water. Thus the water is conserved or excreted according to the presence of fluid level in the body.

11.

A patient approaches a doctor having symptoms like excretion of large amount of urine, excessive thirst and dehydration. 1. Identify the disease. 2. Which hormone deficiency causes this disease?

Answer»

1. Diabetes insipidus

2. ADH

12.

A table showing the average quantity of urine in a person in two different seasons are given.SI.No.SeasonQty/ht1Summer1.252Winter2-31. Compare it. Do you agree with this table? State the reason for producing different Quantity in different season.2. Name the hormone responsible for that.

Answer»

1. Amount of water in the body is low in summer season and increase its quantity in winter season. In summer season water lose is very high due to various reasons like evaporation. So body eliminate less amount of water through urine to conserve water in the body 

2. ADH or vasopressin

13.

How will you identify male or female cockroach?

Answer»

Male and female cockroach can be identified with the help of following differences:

  Male cockroach   Female cockroach
 1. Abdomen is relatively long and narrow. Abdomen is short and broad.
2. 7th tergum covers 8,h tergum. 7th tergum covers 8th and 9th terga.
 3. Antennae are longer in size. Antennae are shorter in size.
4. Anal styles are present.Anal styles are absent.
5. Brood pouch is absent.Brood pouch is present.
6. All 9 sterna visible.Only 7 sterna visible.
14.

Two statements are given - one labeled Assertion (A) and the other labeled Reason (R). Assertion: Apomictic fruits are seedless. Reason: Apomictic fruits are formed without fertilisation. Which of the following is correct? A. Both A and R are true, and R is the correct explanation of the assertion. B. Both A and R are true, but R is not the correct explanation of the assertion. C. A is true, but R is false. D. A is false, but R is true.

Answer»

D. A is false, but R is true.

15.

Which list property do you set for specifying the contents of the list?

Answer»

Selected Index property is used to set for specifying the contents of the list.

16.

A patient with renal failure in waiting for a kidney donor for a transplantation operation. The urea level is high and the patient is developing symptoms of uremia. What method you can suggest to keep the patient live till a donor can be found. Explain the principle behind it.

Answer»

Haemodialysis. The haemodialyser has a cellophane tube bathed in a fluid with ionic concentration similar to that of plasma. The process of separation of small solutes from macromolecular colloids is done hereby the process of diffusion. So the blood will be free from urea, uric acid and creatinine.

17.

Given a list as shown below. Write indices and positions of values: Shivansh, Gunjan, Robin, and Venkat. Venkat Rahat Mythili Shivansh Robin Kutty Gunjan Simran Salim zubin

Answer»
ValuesIndicesPositions
Shivansh.34
Gunjan67
Robin45
Venkat01

18.

In ureotelic animals, urea is produced in (a) Kidney (b) Liver (c) Flame cells (d) Malpighian tubules

Answer»

In ureotelic animals, urea is produced in Liver

19.

A patient approaches a doctor with a problem that he was not able to sleep for the last 6 months. The doctor said that it may be due to the defect in the relay centre of his brain and advised him to take sedative pills. 1. Which part of brain is described here as ‘relay centre’? 2. What are the actions of sedative pills in body?

Answer»

1. Thalamus 

2. Sedative pills work in the Thalamus and prevent the transmission of impulses to cerebrum. Depress brain activity produce feelings of calmness, relaxation, drowsiness and deep sleep.

20.

It is said that the number and pattern of convolutions are associated with the degree of intelligence. 1. Is it true? 2. If yes, give the scientific reason for it.

Answer»

1. True 

2. More intelligent forms like mammals especially primates have more convolutions than lower forms

21.

Complete the following sentences1. Reabsorption of water from DCT is facilitated by the hormone .........2. Kidney failure can cause a bone disorder called ............ 3. Angiotensin II activates the adrenal cortex to release ...........4. In cases of Kidney failure, urea can be removed by the process called ............

Answer»

1. ADH 

2. Gout 

3. Aldosterone 

4. Hemodialysis

22.

Observe the diagram and answer the following1. Name the area labelled here. 2. What is the importance of this area? 3. Name the area associated with this. 4. Draw a flow chart showing conducting system of heart.

Answer»

1. Sino-atrial node (SAN) 

2. Cardiac impulse originates from SAN. 

3. AV node, Bundle of His, Purkinje fibers. 

4. SAN → AVN → Bundle of His→ Purkinje fibers→ Ventricle

23.

State whether true or false and correct the  false statements if any: 1. Flame cells are the excretory structures in round worms. 2. Fat is absorbed in the form of chylomicrons through the intestinal villi. 3. Blood is absent in cockroach. 4. Joint between atlas and axis vertebrae is a pivot joint.

Answer»

1. False – Flame cells are the excretory structures in at worms. 

2. True 

3. False – Blood is present in cockroach. It is colourless. 

4. True

24.

Which one of the following is also known as an antidiuretic hormone? (a) Oxytocin (b) Vasopressin (c) Adrenaline(d) Calcitonin

Answer»

(b) Vasopressin

25.

A large quantity of one of the following is removed from our body by lungs. (a) CO2 only (b) H2O only (c) CO2 and H2O (d) ammonia

Answer»

(c) CO2 and H2

26.

The pH of human urine is approximately (a) 6.5 (b) 7 (c) 6 (d) 7.5

Answer»

The pH of human urine is approximately 6

27.

Note the relationship between the first two words and suggest a suitable word in the missing place. 1. Cockroach – Malpighian Tubule : Flatworm – ..........2. Man – Kidney : Earthworm – ......... 3. Prawn – Greengland : Amphioxus – .........

Answer»

1. Flame cells

2. Nephridia 

3. Protonephridia

28.

Which of the following pairs is wrong? (a) Uricotelic ____ Birds (b) Ureotelic ____Insects (c) Ammonotelic ____ Tadpole (d) Ureotelic____ Elephant

Answer»

(c) Ammonotelic ____ Tadpole

29.

Which one of the following statements is incorrect? (a) The medullary zone of kidney is divided into a few conical masses called medullary pyramids projecting into the calyces. (b) Inside the kidney the cortical region extends in between the medullary pyramids as renal pelvis.(c) Glomerulus along with Bowman’s capsule is called the renal corpuscle.(d) Renal corpuscle, proximal convoluted tabule (PCT) and distal convoluted tubule (DCT) of the nephron are situated in the cortical region of kidney.

Answer»

(b) Inside the kidney the cortical region extends in between the medullary pyramids as renal pelvis.

30.

Take the odd one justify? GFR, JGA, ANF, ADH, TSH

Answer»

TSH: all others are the hormones regulate urine formation.

31.

Which is indispensable hormone for root formation in tissue culturea) Ethyleneb) Auxinc) Gibberillind) Absisicic acid

Answer» Auxin induces root formation.
32.

show the enzymes that participate where energy is produced in kreb cycle

Answer»

The citric acid cycle (CAC) – also known as the TCA cycle (tricarboxylic acid cycle) or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins, into adenosine triphosphate (ATP)

33.

What do you mean by web scripting?

Answer»

A script is a list of commands that are embedded in a web page and are interpreted and executed by the scripting engine. The process of creating and embedding scripts in a web page is known as web scripting.

34.

What is FSF?

Answer»

A Free Software Foundation (FSF) is a non-profit organization created for the purpose of supporting free software movement.

35.

What are dedicated servers?

Answer»

A computer exclusively reserved for server’s job and its only job is to help workstations to access data, software and hardware resources. The term “dedicated server” can also mean a single computer within a network that is reserved for a specific purpose.

36.

Have you any ________ where you left your car keys? A) knowledge B) information C) notion D) idea E) thought

Answer»

Correct option is D) idea

37.

What is advantage of EDGE?

Answer»

EDGE (Enhanced Data GSM Environment) is a faster version of GSM designed to deliver data at rates up to 384 Kbps and enable the delivery of multimedia and other broadband applications to mobile phone and computer users.

38.

What is new operator in C++?

Answer»

The new operator in C++, allocates memory dynamically.

39.

Define array of objects.

Answer»

The array of class type is known as array of objects.
For example:
classname object[5];

40.

What is NOR gate?

Answer»

The NOR (Not OR) gate has two or more input signals with one output. If all the inputs are 0, then output is 1 in NOR gate.

41.

Expand the term POST.

Answer»

The expansion of POST is Power On Self Test.

42.

Explain network security in detail.

Answer»

Network security refers to any activities designed to protect the network and related. activities. It protects the usability, reliability, integrity, and safety of network and data. Good network security identifies variety of threats and stops them from entering or spreading on network.

The network security concerns with allowing only legal or authorized users and programs to gain access to information resources like databases. It also ensures that properly authenticated users get access only to those resources that they are supposed to use.

Many network security threats today are spread over the Internet. The most common include:

  • Viruses, worms, and Trojan horses
  • Spyware and adware
  • Zero-day attacks also called zero-hour attacks
  • Hacker attacks
  • Denial of service attacks
  • Data interception and theft
  • Identity theft

A network security system usually consists of many components. Ideally, all components work together, which minimizes maintenance and improves security.

Network security components include:

  • Anti-virus and anti-spyware
  • Firewall, to block unauthorized access to your network
  • Intrusion prevention systems (IPS), to identify fast-spreading threats, such as zero-day or zero-hour attacks
  • Virtual Private Networks (VPNs), to provide secure remote access
    The network security make use of variety of resources like user name, password, encrypted smart cards, biometrics, and firewalls to protect resources.
43.

List the built-in functions associated with Group functions in SQL.

Answer»

The built-in functions associated with GROUP functions in SQL are

1. COUNT function:
returns the count of records that satisfies the condition for each group of records.
Example:
SELECT department, COUNT(*)FROM employees WHERE salary > 25000 GROUP BY department;

2. MAX function:

returns the maximum values from the column for each group of records.
Example:
SELECT department, MAX(salary) FROM employees GROUP BY department;

3. MIN function:

returns the lowest values from the column for each group of records.
Example:
SELECT department, MIN(salary)FROM employees GROUP BY department;

4. AVG function:

returns the average values from the column for each group of records. SELECT AVG(cost) FROM products WHERE category = ‘Clothing’;

5. SUM function:

returns the total values from the column for each group of records.
Example:
SELECT department, SUM(sales)FROM order_details GROUP BY department;

DISTINCT function:

returns the once occurrence of many repeated values from the column for each group of records.
SELECT AVG(DISTINCT cost)FROM products WHERE category = ‘Clothing’;

44.

What is the difference between getters and setters in JAVA ?

Answer»

Getters are the methods which extract some information from the object and return it to the program. 

Setters are the methods which set some properties of the object so that the object's appearance changes.

45.

Write a short note on destructors.

Answer»

It is a special function used to release the memory space allocated by the object.

  • Name of the Destructor is similar to the class, which it belongs.
  • It does not have argument(s) and doesn’t return any value (no return type)
  • Destructor is preceded by ~ (tilde) sign.
    Following points should be kept in mind while defining and writing the syntax for the destructor:
  • A destructor function must be declared with the same name as that of the class too. which it belongs.
  • The first character of the destructor name must begin with a tilde (~).
  • A destructor function is declared with no return types specified (not even void).
  • A destructor function must have public access in the class declaration.

General Syntax of Destructors:
~ classname();
The above is the general syntax of a destructor. In the above, the symbol tilde ~ represents a destructor that precedes the name of the class.

46.

What are the secondary functions of an office?

Answer»

The basic functions are essential to the existence of the office. These include collecting, processing, recording, storing and furnishing information. The administrative functions are organisation of office activities, control of stationery, purchase of equipment, safe guarding of assets, management of personnel etc

47.

Sheba is entering marks in a table but she is not able to leave the Name field in table as blank. What could be the probable reason(s)?

Answer»

The column Name has NOT NULL constraint

48.

Define Cardinality.

Answer»

NUMBER OF ROWS IN A TABLE

49.

Write a short note on inheritance and polymorphism.

Answer»

1. Inheritance:

Inheritance is the process of creating new classes, called derived class, from existing or base classes. The derived class inherits all the capabilities of the base class. Using Inheritance some qualities of the base classes are added to the newly derived class, apart from its own features. Inheritance permits code reusability. The different types of inheritance are single inheritance, multilevel inheritance, multiple inheritance, hierarchical inheritance, and hybrid inheritance.

2. Polymorphism:

The polymorphism is ability of an object to take more than one form in different instances. For example, one function name can be used for different purposes. Similarly, same operator can be used for different operations. There are of two types one is the “compile time polymorphism” and other one is the “run-time polymorphism”. The polymorphism is implemented using function overloading and operator overloading in C++.

50.

What is web-hosting? Mention different types of web-hosting.

Answer»

Web hosting means to put web-site content on a Web server and provide fast connection to the internet.

The different type of web-hosting are:

  1. Free Hosting
  2. Virtual or Shared Hosting
  3. Dedicated Hosting
  4. Colocation Hosting