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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 401. |
Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vas |
| A. | All gymnosperms, except conifers |
| B. | Only angiosperms |
| C. | Only conifers |
| D. | Angiosperms and all gymnosperms except conifers |
| Answer» D. Angiosperms and all gymnosperms except conifers | |
| 402. |
Palaeobotany is the branch of Botany is which we study about- |
| A. | Animal fossils |
| B. | Plant fossils |
| C. | Seed of plant |
| D. | Flower |
| Answer» C. Seed of plant | |
| 403. |
In Pedology we study about |
| A. | Disease |
| B. | Pollution |
| C. | Soil |
| D. | Rockes |
| Answer» D. Rockes | |
| 404. |
Most fish do not sink in water because of the presence of |
| A. | I and ii are correct |
| B. | Ii and iii are correct |
| C. | Iii and iv are correct |
| D. | I, ii, iii and iv are correct |
| Answer» B. Ii and iii are correct | |
| 405. |
Botany is also known as - |
| A. | Phytology |
| B. | Phycology |
| C. | Pedology |
| D. | Plantophyta |
| Answer» B. Phycology | |
| 406. |
Branch of biology in which we study about relationship beetween living and their enviornment- |
| A. | Physiology |
| B. | Genetics |
| C. | Ecology |
| D. | Geology |
| Answer» D. Geology | |
| 407. |
Mycology is the branch of botany in which we study about- |
| A. | Algae |
| B. | Fungi |
| C. | Bacteria |
| D. | Virus |
| Answer» C. Bacteria | |
| 408. |
Who is known as "Father of Medicine"- |
| A. | Aristotle |
| B. | Theophrastus |
| C. | Hippocrates |
| D. | Darwin |
| Answer» D. Darwin | |
| 409. |
The book Historia aniimalium is written by- |
| A. | Aristotle |
| B. | Darwin |
| C. | Lamark |
| D. | Theophrastus |
| Answer» B. Darwin | |
| 410. |
Scientist who is known as "Father of Botany"- |
| A. | Aristotle |
| B. | Darwin |
| C. | Theopharastus |
| D. | Linneus |
| Answer» D. Linneus | |
| 411. |
The term biology is derived from the language- |
| A. | French |
| B. | Latin |
| C. | Purtgali |
| D. | Greek |
| Answer» E. | |
| 412. |
Which component of plants receives stimulus for flowering? |
| A. | Stems |
| B. | Branches |
| C. | Leaves |
| D. | Roots |
| Answer» D. Roots | |
| 413. |
Plants that grow under average temperature and moisture are called: |
| A. | Halophytes |
| B. | Hydrophytes |
| C. | Mesophytes |
| D. | Xerophytes |
| Answer» D. Xerophytes | |
| 414. |
Reflex actions are controlled by : |
| A. | The cells |
| B. | The spinal chord |
| C. | The brain |
| D. | The nerves |
| Answer» C. The brain | |
| 415. |
Mutation is |
| A. | A factor responsible for plant growth |
| B. | A change which affects the offspring of f2 generation only |
| C. | A change that is inherited |
| D. | A change which affects the parents |
| Answer» D. A change which affects the parents | |
| 416. |
Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes |
| A. | Tetanus |
| B. | Influenza |
| C. | Cholera |
| D. | Typhoid |
| Answer» D. Typhoid | |
| 417. |
Biotic component of the environment does not include- |
| A. | Soil system |
| B. | Animal system |
| C. | Micro-organism system |
| D. | Plant system |
| Answer» B. Animal system | |
| 418. |
Which one of the following is not an insect: |
| A. | Bed bug |
| B. | House fly |
| C. | Mosquitoes |
| D. | Spider |
| Answer» E. | |
| 419. |
Most fish do not sink in water because of the presence of swim bladderair bladderair sacsair in spongy bones |
| A. | I and ii are correct |
| B. | Ii and iii are correct |
| C. | Iii and iv are correct |
| D. | I, ii, iii and iv are correct |
| Answer» B. Ii and iii are correct | |
| 420. |
Potato is a modified form (outgrowth) of: |
| A. | Root |
| B. | Stem |
| C. | Fruit |
| D. | Leaf |
| Answer» C. Fruit | |
| 421. |
O2 released in the process of photosynthesis comes from |
| A. | Co2 |
| B. | Water |
| C. | Sugar |
| D. | Pyruvic acid |
| Answer» C. Sugar | |
| 422. |
N2 content is kept constant in the biosphere due to |
| A. | N2 fixation |
| B. | Industrial pollution |
| C. | Nitrogen cycle |
| D. | Absorption of n2 |
| Answer» D. Absorption of n2 | |
| 423. |
When looking at the cross section of the human tibia, where does one find the RED marrow in: |
| A. | medullary cavity |
| B. | cancellous bone |
| C. | periosteum |
| D. | epiphysis |
| Answer» B. cancellous bone | |
| 424. |
Which among the following statements concerning platelets is INCORRECT. Platelets: |
| A. | contain DNA |
| B. | are roughly disk-shaped |
| C. | have little ability to synthesize proteins |
| D. | are between 1/2 and 1/3 the diameter of the red cell |
| Answer» B. are roughly disk-shaped | |
| 425. |
In which of the following regions crop of the Cockroach is located ? |
| A. | Thorax |
| B. | Abdomen |
| C. | Thorax and abdomen |
| D. | Through out the gut |
| Answer» D. Through out the gut | |
| 426. |
In Cockroach malpighian tubules open in .......... . |
| A. | At the junction of midgut and hindgut. |
| B. | At the end of hindgut. |
| C. | Near rectum |
| D. | At the posterior end of gizzard. |
| Answer» B. At the end of hindgut. | |
| 427. |
How many secreting lobes are present in each salivary gland of Cockroach ? |
| A. | Two |
| B. | Two pairs |
| C. | Three |
| D. | Six |
| Answer» B. Two pairs | |
| 428. |
In Cockroach, gizzard is .......... organ and .......... occur inside it. |
| A. | Glandular, six dentin teeth |
| B. | Muscular, six chitinous teeth |
| C. | Muscular, four chitinous teeth |
| D. | Glandular, six chitinous teeth |
| Answer» C. Muscular, four chitinous teeth | |
| 429. |
Crop of the Cockroach occurs at .......... in almentary canal. |
| A. | Posterior end of oesophagu |
| B. | Near midgut |
| C. | Posterior end of pharynx |
| D. | At the juction of midgut and hindgut. |
| Answer» B. Near midgut | |
| 430. |
In Cockroach, colon is presnet at the posterior region of .......... . |
| A. | Foregut |
| B. | Hindgut |
| C. | Hepatic caecae |
| D. | Gizzard |
| Answer» C. Hepatic caecae | |
| 431. |
In Cockroach the cavities of foregut and hindgut are lined with .......... . |
| A. | Salivary gland |
| B. | Gizzard |
| C. | Cuticle |
| D. | Chitinous teeth |
| Answer» D. Chitinous teeth | |
| 432. |
Name the small cells of haemolymph of Cockroach ? |
| A. | Phagocyte |
| B. | Proleucocytes |
| C. | Enocytes |
| D. | Excretory |
| Answer» C. Enocytes | |
| 433. |
The walls of spiracles are framed from .......... . |
| A. | Blood vessel |
| B. | Tissue fluid |
| C. | Chitinous Bristles |
| D. | Ostia |
| Answer» D. Ostia | |
| 434. |
Blood from sinuses enters in the heart of Cockroch through .......... . |
| A. | Artery |
| B. | Vein |
| C. | Arteriole |
| D. | Ostia |
| Answer» E. | |
| 435. |
In alimentary canal of Cockroach .......... cells of midgut and hepatic caeca secrete enzymes. |
| A. | Columnar |
| B. | Cuboidal |
| C. | Ciliated |
| D. | Striated |
| Answer» B. Cuboidal | |
| 436. |
.......... numbers of Ostia are present at the posterior end of heart of Cockroach ? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Ten |
| Answer» C. Three | |
| 437. |
In Cockroach how many spiracles are present in thoracic region and howmany spiracles are present in abdominal region ? |
| A. | Two pairs and eight pair |
| B. | Two and eight |
| C. | Eight pairs and two pairs |
| D. | Eight and two |
| Answer» B. Two and eight | |
| 438. |
In Cockroch .......... on salivary glands and .......... reservoirs are present ? |
| A. | Two, One |
| B. | One, Two |
| C. | Two, Four |
| D. | Three, Two |
| Answer» D. Three, Two | |
| 439. |
In Cockroach, morphologically rectum is.......... shaped and .......... from inside. |
| A. | Tubular, bag like |
| B. | Bag like, folded |
| C. | Folded, baglike |
| D. | Villi, baglike |
| Answer» C. Folded, baglike | |
| 440. |
In the alimentary canal of Cockroach the shape of region following the mouth is .......... . |
| A. | Folded |
| B. | Swollen bag like |
| C. | Norrow tubula |
| D. | Thin fibriller |
| Answer» D. Thin fibriller | |
| 441. |
Cockroach searches its food with the help of.......... . |
| A. | Walking leg |
| B. | Mandibles |
| C. | Eye |
| D. | Antennae |
| Answer» E. | |
| 442. |
The haemolymph of Cockroach is mostly composed of .......... and .......... . |
| A. | Haemoglobin and blood cells. |
| B. | Plasma and uncertain shaped cells. |
| C. | Haemocynin and plasma. |
| D. | Plasma and certain shaped cells. |
| Answer» C. Haemocynin and plasma. | |
| 443. |
Where are sieve like structures present in the alimentary canal of Cockroach ? |
| A. | Anterior end of gizzard |
| B. | In hepatic cacae |
| C. | Posterior end of crop |
| D. | Posterior end of gizzard |
| Answer» E. | |
| 444. |
Total howmany spiracles occur in Cockroach ? |
| A. | Ten |
| B. | Twenty |
| C. | Thirteen |
| D. | Twenty six |
| Answer» C. Thirteen | |
| 445. |
Malpigian tubules in Cockroach are.......... organs. |
| A. | Digestive |
| B. | Secretory |
| C. | Excretory |
| D. | Respiratory |
| Answer» D. Respiratory | |
| 446. |
Where are eight blind hepatic caeca present in Cockroach ? |
| A. | With crop |
| B. | At the juction of midgut and hindgut |
| C. | at the midgut |
| D. | at the foregut. |
| Answer» D. at the foregut. | |
| 447. |
Cockroach is .......... animal. |
| A. | Herbivorou |
| B. | Insectivorous |
| C. | Omnivorous |
| D. | Carnivorous |
| Answer» D. Carnivorous | |
| 448. |
The heart of Cockroach is made up of .......... units. |
| A. | Thirteen |
| B. | Ten |
| C. | Twelve |
| D. | Four |
| Answer» B. Ten | |
| 449. |
Which is the path of blood circulation in Cockroach ? |
| A. | Heart - artery - organs - heart |
| B. | Heart - sinuses - heart |
| C. | Sinuses - artery - organs - vein - heart |
| D. | Heart - artery - heart |
| Answer» C. Sinuses - artery - organs - vein - heart | |
| 450. |
What does X replesent in the above diagram |
| A. | Released polypeptide chain |
| B. | Released 3D protein molecule |
| C. | Released secondary protein |
| D. | Released tertiary protein |
| Answer» B. Released 3D protein molecule | |