MCQOPTIONS
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MCQOPTIONS
This section includes 533 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.
| 401. |
Floral characteristics of flower in Solanaceae are |
| A. | bisexual |
| B. | monosexual |
| C. | asexual |
| D. | heterosexual |
| Answer» B. monosexual | |
| 402. |
Ring worm and skin diseases can be cure with help of leaves of |
| A. | pine tree |
| B. | cassia alata |
| C. | conifers |
| D. | date tree |
| Answer» C. conifers | |
| 403. |
Clitoria Ternatea is used against |
| A. | jelly fish |
| B. | snake bite |
| C. | mosquito bite |
| D. | dog attack |
| Answer» C. mosquito bite | |
| 404. |
Examples of winged seeds include |
| A. | Tacoma |
| B. | shorea |
| C. | tridex |
| D. | cotton |
| Answer» B. shorea | |
| 405. |
Clusters of spores called 'sori' are produced by which of following? |
| A. | hornworts |
| B. | legumes |
| C. | ferns |
| D. | moss |
| Answer» D. moss | |
| 406. |
What are spine shaped leaves on lycophytes called? |
| A. | Microphylls |
| B. | megaphylls |
| C. | leaf glade |
| D. | spike |
| Answer» B. megaphylls | |
| 407. |
Which of following is a waxy covering on Plant epidermis that helps prevent water loss? |
| A. | leafy glade |
| B. | cell wall |
| C. | roots |
| D. | cuticle |
| Answer» E. | |
| 408. |
Dormant seeds are usually |
| A. | succulent |
| B. | dry |
| C. | wet |
| D. | soft |
| Answer» C. wet | |
| 409. |
Cnidarians and annelids have |
| A. | exoskeleton |
| B. | hydrostatic skeleton |
| C. | Axial Skeleton |
| D. | endoskeleton |
| Answer» C. Axial Skeleton | |
| 410. |
Which is true about stomata , it closes in |
| A. | strong wind |
| B. | night |
| C. | very high temperatures |
| D. | strong wind and night |
| Answer» E. | |
| 411. |
Number of lobes in each anther is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 412. |
A less conspicuous generation which partially or completely depend upon gametophyte for its nutrition is a |
| A. | sporophyte |
| B. | saprophyte |
| C. | prophyte |
| D. | symbion |
| Answer» B. saprophyte | |
| 413. |
Bones are hard due to presence of |
| A. | calcium |
| B. | vitamin-D |
| C. | calcium phosphate |
| D. | magnesium |
| Answer» D. magnesium | |
| 414. |
In order to attract insects for pollination, |
| A. | petals are brightly colored |
| B. | petals are protected by calyx |
| C. | epicalyx is essential |
| D. | petals have large surface area |
| Answer» B. petals are protected by calyx | |
| 415. |
A seed may be defined as a fertilized |
| A. | ova |
| B. | ovule |
| C. | oospore |
| D. | achegonium |
| Answer» C. oospore | |
| 416. |
Distance between the stigma and anthers in the same flower, |
| A. | reduces the chances of self pollination |
| B. | enhances the chances of self pollination |
| C. | reduces the chances of cross pollination |
| D. | enhances the chance of cross pollination |
| Answer» B. enhances the chances of self pollination | |
| 417. |
Common test for starch presence is |
| A. | Benedict Test |
| B. | Iodine test |
| C. | Biuret Test |
| D. | Bromine Test |
| Answer» C. Biuret Test | |
| 418. |
Rapid diffusion of carbon dioxide (CO₂) to inner cells is ensured through |
| A. | large flat surface |
| B. | leaf stalk |
| C. | thin lamina |
| D. | closely packed palisade cells |
| Answer» D. closely packed palisade cells | |
| 419. |
If movement is toward stimulus, response is |
| A. | positive |
| B. | negative |
| C. | no response |
| D. | neutral |
| Answer» B. negative | |
| 420. |
From the root hair cells, the water travels through the |
| A. | pith cells |
| B. | epidermis |
| C. | cuticle |
| D. | cortex |
| Answer» E. | |
| 421. |
Wing becomes a flattened extension of testa in |
| A. | plumed fruits |
| B. | plumed seeds |
| C. | winged seeds |
| D. | winged fruits |
| Answer» D. winged fruits | |
| 422. |
Examples of plumed fruits include |
| A. | clematis |
| B. | tridex |
| C. | mango |
| D. | banana |
| Answer» D. banana | |
| 423. |
Fruits dispersed through hook like structures include |
| A. | Angsana |
| B. | Xanthium |
| C. | Tacoma |
| D. | Cotton |
| Answer» C. Tacoma | |
| 424. |
Plants that have seeds enclosed in shells are classified in which of following groups? |
| A. | angiosperms |
| B. | ferns |
| C. | bryophytes |
| D. | gymnosperms |
| Answer» B. ferns | |
| 425. |
Function of epidermis is to |
| A. | cover the leaf |
| B. | cover the stem |
| C. | divide to form new xylem tissues |
| D. | help in capturing sunlight for photosynthesis |
| Answer» C. divide to form new xylem tissues | |
| 426. |
Due to chemical energy, water and carbon dioxide are converted into |
| A. | cellulose |
| B. | carbohydrates |
| C. | photolysis of water |
| D. | starch |
| Answer» C. photolysis of water | |
| 427. |
An autotrophic, small, heart shaped and flat structure is called |
| A. | sporophyll |
| B. | thallus |
| C. | prothallus |
| D. | gamate |
| Answer» D. gamate | |
| 428. |
If male and female flowers are born on different plants, the plant is called |
| A. | bisexual |
| B. | dioecious |
| C. | unisexual |
| D. | trisexual |
| Answer» C. unisexual | |
| 429. |
Path of water through root |
| A. | helps keep phloem intact |
| B. | breaks phloem along the radii of root |
| C. | can also be done without osmosis |
| D. | does not need help from the piliferous layer |
| Answer» C. can also be done without osmosis | |
| 430. |
Offspring receive valuable qualities from both parents in |
| A. | cross pollination |
| B. | self pollination |
| C. | wind pollination |
| D. | insect pollination |
| Answer» B. self pollination | |
| 431. |
Several of 10,000 years old seeds germinated within |
| A. | 48 hours |
| B. | two weeks |
| C. | few hours |
| D. | 1 hour |
| Answer» B. two weeks | |
| 432. |
Medicago Sativa Alfalfa is one of world's best forage crop for |
| A. | horses |
| B. | donkeys |
| C. | cows |
| D. | reindeer |
| Answer» B. donkeys | |
| 433. |
Compact bone constitutes outer shell and provides attachment site for |
| A. | tissue |
| B. | cell |
| C. | cartilage |
| D. | muscle |
| Answer» E. | |
| 434. |
Both male and female flowers on the same plant are found in |
| A. | Monoecious plants |
| B. | Dioecious plants |
| C. | Unisexual plants |
| D. | Monocotyledonous plants |
| Answer» B. Dioecious plants | |
| 435. |
During darkness in plants |
| A. | starch is converted in sugars |
| B. | sugars is converted in starch |
| C. | glycogen is converted into glucose |
| D. | glucose is converted into glycogen |
| Answer» B. sugars is converted in starch | |
| 436. |
In plants upon soaking, the testa |
| A. | sheds itself |
| B. | becomes swollen |
| C. | becomes permeable for gaseous exchange |
| D. | becomes hard |
| Answer» D. becomes hard | |
| 437. |
Their evolutional developmental shows regular |
| A. | autotrophic alternation of generation |
| B. | homomorphic alternation of generartion |
| C. | Hetermorphic alternation of generation |
| D. | All of the Above |
| Answer» D. All of the Above | |
| 438. |
Multicellular haploid gametophytic generation alternates with multicellular diploid sporophytic generation. This cycle is called |
| A. | medium of genertaion |
| B. | alternation of generation |
| C. | evolution of generation |
| D. | allertness of generation |
| Answer» C. evolution of generation | |
| 439. |
Archegonium consists of a neck and a |
| A. | tail |
| B. | venter |
| C. | root |
| D. | antenae |
| Answer» C. root | |
| 440. |
Large and conspicuous are the |
| A. | male cones |
| B. | cones |
| C. | female cones |
| D. | neutral cones |
| Answer» D. neutral cones | |
| 441. |
Major source of high protein food and oil are special feature of plant, that belong to |
| A. | Fabaceae |
| B. | Rosaceae |
| C. | Solanaceae |
| D. | Jessanaceae |
| Answer» C. Solanaceae | |
| 442. |
Corolla refers to the collection of |
| A. | sepals |
| B. | petals |
| C. | carpels |
| D. | stamens |
| Answer» C. carpels | |
| 443. |
Which of following is true for sporocytes? |
| A. | diploid |
| B. | haploid |
| C. | multiple nuclei |
| D. | lobed nucleus |
| Answer» B. haploid | |
| 444. |
Which of following are tube-shaped cells present in xylem? |
| A. | stomata |
| B. | plasmodesmata |
| C. | phloem |
| D. | tracheid |
| Answer» E. | |
| 445. |
Irish people are completely depend for their nutrition on |
| A. | potatoes |
| B. | oinions |
| C. | cabbage |
| D. | carrots |
| Answer» B. oinions | |
| 446. |
Megaspore which develop into female gametophyte consists of cells that are only |
| A. | 2 |
| B. | 7 |
| C. | 11 |
| D. | 3 |
| Answer» C. 11 | |
| 447. |
Plant wilts when the leaf |
| A. | looses its central nucleus |
| B. | looses its central vacuoles |
| C. | looses its turgor pressure |
| D. | exposed to strong wind |
| Answer» D. exposed to strong wind | |
| 448. |
More and more water (H₂O) is pulled by xylem when |
| A. | cubicula transpiration increases |
| B. | rate of photosynthesis increases |
| C. | cell sap becomes concentrated after water loss |
| D. | plant has a rich supply of water |
| Answer» D. plant has a rich supply of water | |
| 449. |
Region in ovary to which ovule are attached is called |
| A. | funicle |
| B. | peduncle |
| C. | receptacle |
| D. | placenta |
| Answer» E. | |
| 450. |
Rate of evaporation is decreased through the |
| A. | sebaceous glands |
| B. | protoplasm |
| C. | thick layer of blubber |
| D. | hair follicles |
| Answer» B. protoplasm | |