MCQOPTIONS
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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.
| 4401. |
In whom does division stop after birth? |
| A. | in nerve cells |
| B. | in connective cell |
| C. | in the epithelial cell |
| D. | in liver cells |
| Answer» B. in connective cell | |
| 4402. |
Which one of the following structures prevents blood from flowing back in the opposite direction inside the heart during contraction? |
| A. | heart valve |
| B. | ventricles |
| C. | atrial fibrillation |
| D. | All of the above |
| Answer» B. ventricles | |
| 4403. |
What are the heart muscle fibers? |
| A. | branched |
| B. | Lined |
| C. | involuntary |
| D. | all these |
| Answer» D. all these | |
| 4404. |
In mammals, the heart impulse starts from the SA node, so it is called? |
| A. | cholinergic |
| B. | adrenergic |
| C. | neurogenic |
| D. | Myogenic |
| Answer» E. | |
| 4405. |
Whose quantity becomes relatively high in the blood coming out of the tissues? |
| A. | Carbon dioxide |
| B. | water |
| C. | hemoglobin |
| D. | oxygen |
| Answer» B. water | |
| 4406. |
The sound in the heart is produced by which sound lub and dub? |
| A. | due to atrial fibrillation |
| B. | due to ventricles |
| C. | due to valve |
| D. | Due to SA node |
| Answer» D. Due to SA node | |
| 4407. |
What are the valves between the left atrium and the ventricle? |
| A. | trivalan |
| B. | Mitral |
| C. | aorta |
| D. | Lungs |
| Answer» C. aorta | |
| 4408. |
What cells make up the alveoli? |
| A. | from the squamous epithelium |
| B. | from columnar epithelium |
| C. | from cuboidal epithelium |
| D. | from glandular epithelium |
| Answer» B. from columnar epithelium | |
| 4409. |
In the wall of human trachea is? |
| A. | 'C' shaped cartilage |
| B. | 'O' shaped cartilage |
| C. | 'C' shaped bone |
| D. | not carious |
| Answer» B. 'O' shaped cartilage | |
| 4410. |
The filtration units of the kidney are called? |
| A. | ureter |
| B. | urethra |
| C. | neuron |
| D. | Nephron |
| Answer» E. | |
| 4411. |
Does the pulmonary vein open or bring blood? |
| A. | in the right atrium |
| B. | in the left atrium |
| C. | in the left ventricle |
| D. | in the right ventricle |
| Answer» C. in the left ventricle | |
| 4412. |
The human heart beats in one minute? |
| A. | 72-75 bar |
| B. | 60-70 bar |
| C. | 72-80 bar |
| D. | 75-78 times |
| Answer» B. 60-70 bar | |
| 4413. |
How many chambers are there in the human heart? |
| A. | Five |
| B. | two |
| C. | three |
| D. | four |
| Answer» E. | |
| 4414. |
Into how many bodies is the right lung divided? |
| A. | two |
| B. | three |
| C. | four |
| D. | Five |
| Answer» C. four | |
| 4415. |
Blood classes were discovered by? |
| A. | by Charles Darwin |
| B. | by William Harvey |
| C. | by Karl Landsteiner |
| D. | by robert hook |
| Answer» D. by robert hook | |
| 4416. |
Which part is not included in the structure of human kidney? |
| A. | Medulla |
| B. | urethra |
| C. | pelvis |
| D. | cortex |
| Answer» C. pelvis | |
| 4417. |
To which organ does impure blood from the right ventricle go? |
| A. | in the lungs |
| B. | in the esophagus |
| C. | in the heart |
| D. | in the skin |
| Answer» B. in the esophagus | |
| 4418. |
What is the inner part of the nostrils called? |
| A. | air canal |
| B. | nasal chamber |
| C. | Lungs |
| D. | Smell |
| Answer» E. | |
| 4419. |
Foremost veins to blood? |
| A. | leads from the body to the right atrium |
| B. | transports from the body to the left ventricle |
| C. | carries blood from the heart to different parts of the body |
| D. | purify |
| Answer» B. transports from the body to the left ventricle | |
| 4420. |
The length of the trachea in an adult human is approximately? |
| A. | 30 cm |
| B. | 12 cm |
| C. | 45 cm |
| D. | 5 cm |
| Answer» C. 45 cm | |
| 4421. |
Which is the first enzyme found in digestion with food? |
| A. | pepsin |
| B. | cellulose |
| C. | amylase |
| D. | trypsin |
| Answer» D. trypsin | |
| 4422. |
By whom does the greater nasal passage separate from the mouth? |
| A. | palette |
| B. | Tetua |
| C. | pharynx |
| D. | nasal chamber |
| Answer» B. Tetua | |
| 4423. |
Which is the hardest part of the human body? |
| A. | tooth enamel |
| B. | bones |
| C. | muscles |
| D. | none of these |
| Answer» B. bones | |
| 4424. |
Which gas is released after biological oxidation? |
| A. | nitrogen |
| B. | oxygen |
| C. | Carbon dioxide |
| D. | carbon monoxide |
| Answer» D. carbon monoxide | |
| 4425. |
The lining of the stomach remains protected due to the presence of one of the following, choose the correct answer? |
| A. | pepsin |
| B. | Mucus |
| C. | alkaline amylase |
| D. | bile juice |
| Answer» C. alkaline amylase | |
| 4426. |
Which of the following action does not take place when glucose is taken as food? |
| A. | Ingestion |
| B. | digestion |
| C. | absorption |
| D. | impersonation |
| Answer» C. absorption | |
| 4427. |
In which part of the alimentary canal, food is finally digested? |
| A. | stomach |
| B. | buccal cavity |
| C. | large intestine |
| D. | small intestine |
| Answer» E. | |
| 4428. |
From which lichen is the medicine for epilepsy obtained? |
| A. | Russell |
| B. | Leconera |
| C. | Endocarp |
| D. | parmelia |
| Answer» E. | |
| 4429. |
The thin distal part of the stomach is called? |
| A. | cardiac part |
| B. | duodenum |
| C. | pharynx |
| D. | pylorus |
| Answer» E. | |
| 4430. |
Which lichen do people eat as a vegetable in Japan? |
| A. | Russell |
| B. | Endocarp |
| C. | parmelia |
| D. | all these |
| Answer» C. parmelia | |
| 4431. |
Which part of the alimentary canal carries bile juice from the liver? |
| A. | stomach |
| B. | small intestine |
| C. | large intestine |
| D. | pharynx |
| Answer» C. large intestine | |
| 4432. |
What are lichens that grow on empty rocks called? |
| A. | parmelia |
| B. | sextilis |
| C. | sexycoles |
| D. | none of these |
| Answer» D. none of these | |
| 4433. |
Fungi that grow on cow dung are called? |
| A. | Saxicolus |
| B. | zoophilus |
| C. | Tricholus |
| D. | Coprophilus |
| Answer» E. | |
| 4434. |
The fungi that grow on the bark of trees are called? |
| A. | zoophilus |
| B. | Corticolus |
| C. | Coprophilus |
| D. | Saxicolus |
| Answer» C. Coprophilus | |
| 4435. |
What changes in gastric juice (HCL)? |
| A. | prorenin into renin |
| B. | pepsinogen into pepsin |
| C. | polypeptide into peptide |
| D. | disaccharide into monosaccharide |
| Answer» C. polypeptide into peptide | |
| 4436. |
If-if from whom? |
| A. | algae |
| B. | bacteria |
| C. | meat |
| D. | fungus |
| Answer» B. bacteria | |
| 4437. |
get kelp? |
| A. | from lichens |
| B. | from seaweeds |
| C. | from aquatic algae |
| D. | from algae |
| Answer» C. from aquatic algae | |
| 4438. |
Are all fungi always? |
| A. | Parasite |
| B. | parasites |
| C. | Multivitamin |
| D. | autotrophic |
| Answer» D. autotrophic | |
| 4439. |
What is the cell wall of fungi made of? |
| A. | chitin and hemicellulose |
| B. | lipids |
| C. | protein |
| D. | cellulose |
| Answer» B. lipids | |
| 4440. |
The branch of botany under which fungi are studied is called? |
| A. | agrotology |
| B. | mycology |
| C. | phenology |
| D. | pomology |
| Answer» C. phenology | |
| 4441. |
What is the cell wall of algae made of? |
| A. | cutin |
| B. | Chitin |
| C. | suberin |
| D. | cellulose |
| Answer» E. | |
| 4442. |
What causes 'Foot and Mouth' disease in animals? |
| A. | Virus |
| B. | protozoa |
| C. | bacteria |
| D. | all these |
| Answer» B. protozoa | |
| 4443. |
There is no salivary gland present in human? |
| A. | parotid gland |
| B. | infraorbital gland |
| C. | submandibular gland |
| D. | sublingual gland |
| Answer» C. submandibular gland | |
| 4444. |
The red color of the Red Sea is due to the presence of? |
| A. | meat |
| B. | Lichen |
| C. | algae |
| D. | bacteria |
| Answer» D. bacteria | |
| 4445. |
Green house plant? |
| A. | hot |
| B. | Cold |
| C. | both |
| D. | No one |
| Answer» B. Cold | |
| 4446. |
Due to the high amount of ozone in living beings? |
| A. | respiratory rate |
| B. | cataract |
| C. | cough |
| D. | all of which |
| Answer» E. | |
| 4447. |
In which part of the human digestive canal the peristaltic movements do not occur? |
| A. | pharynx |
| B. | stomach |
| C. | small intestine |
| D. | large intestine |
| Answer» B. stomach | |
| 4448. |
The causative element of mosaic disease in potato is? |
| A. | mildew |
| B. | Lichen |
| C. | bacteria |
| D. | Virus |
| Answer» E. | |
| 4449. |
How do ozone holes form? |
| A. | fluoro carbon |
| B. | chlorofluorocarbons |
| C. | (A |
| D. | none of these |
| Answer» D. none of these | |
| 4450. |
Which fungus disease is the cause of maximum death of poultry birds? |
| A. | Coryza |
| B. | aspergillosis |
| C. | Rickets |
| D. | pullorium |
| Answer» D. pullorium | |