MCQOPTIONS
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MCQOPTIONS
This section includes 1528 Mcqs, each offering curated multiple-choice questions to sharpen your Grade9 knowledge and support exam preparation. Choose a topic below to get started.
| 801. |
The period when both atria contracts and blood is pumped towards the ventricles is classified as |
| A. | atrial systole |
| B. | cardiac diastole |
| C. | atrial diastole |
| D. | cardiac systole |
| Answer» B. cardiac diastole | |
| 802. |
The tissues which are responsible for conduction of dissolved organic food between parts of the body are called |
| A. | exothermal tissues |
| B. | phloem tissues |
| C. | xylem tissues |
| D. | endothermal tissues |
| Answer» C. xylem tissues | |
| 803. |
The water enters into sieve tubes from xylem via |
| A. | osmosis |
| B. | diffusion |
| C. | fusion |
| D. | binary fission |
| Answer» B. diffusion | |
| 804. |
The nuclear envelope is formed around each |
| A. | make over set |
| B. | haploid set |
| C. | diploid set |
| D. | cross over set |
| Answer» C. diploid set | |
| 805. |
The growth of abnormal cells leads to the formation of |
| A. | tertiary fission |
| B. | tumors |
| C. | secondary fission |
| D. | primary fission |
| Answer» C. secondary fission | |
| 806. |
The German Biologist who discovered the meiosis process is |
| A. | John Oscar |
| B. | Oscar Hertwig |
| C. | Oscar Wilde |
| D. | Ernst Oscar |
| Answer» C. Oscar Wilde | |
| 807. |
The type of cell division in which the cell is divided into two daughter cells is called |
| A. | prophase |
| B. | anaphase |
| C. | mitosis |
| D. | meiosis |
| Answer» D. meiosis | |
| 808. |
The occasions in organism's lives for mitosis include |
| A. | regeneration |
| B. | asexual reproduction |
| C. | cell replacement |
| D. | all of above |
| Answer» E. | |
| 809. |
During photolysis, the substance which is released is |
| A. | oxygen |
| B. | carbon dioxide |
| C. | water |
| D. | hydrogen |
| Answer» B. carbon dioxide | |
| 810. |
The name of the main photosynthetic pigments is |
| A. | chlorophyll-g |
| B. | chlorophyll-d |
| C. | chlorophyll-b |
| D. | chlorophyll-a |
| Answer» E. | |
| 811. |
The gain of electrons in hydrogen atoms is known as |
| A. | catabolism |
| B. | reduction |
| C. | anabolism |
| D. | oxidation |
| Answer» C. anabolism | |
| 812. |
The synthesis of glucose in the presence of chlorophyll and sunlight from water and CO2 is |
| A. | ribosomal synthesis |
| B. | ribose synthesis |
| C. | ultra synthesis |
| D. | photosynthesis |
| Answer» E. | |
| 813. |
The number of phases in which photosynthesis occurs is |
| A. | three |
| B. | two |
| C. | four |
| D. | five |
| Answer» C. four | |
| 814. |
The blood vessel that carries blood to the heart is called |
| A. | capillary |
| B. | artery |
| C. | vein |
| D. | nerve |
| Answer» D. nerve | |
| 815. |
The kind of granulocytes which kills the parasites and breaks the inflammatory substances are |
| A. | basophils |
| B. | chlorophylls |
| C. | eosinophils |
| D. | neutrophils |
| Answer» D. neutrophils | |
| 816. |
The cardiac means |
| A. | related to pancreas |
| B. | related to heart |
| C. | related to lungs |
| D. | related to liver |
| Answer» C. related to lungs | |
| 817. |
The capillaries are formed by the division of |
| A. | arterioles |
| B. | pulmonary arteries |
| C. | centrioles |
| D. | centrosome |
| Answer» B. pulmonary arteries | |
| 818. |
The major proteins present in plasma are |
| A. | antibodies |
| B. | albumin |
| C. | fibrinogen |
| D. | all of above |
| Answer» E. | |
| 819. |
The pulmonary trunk emerges from |
| A. | left atria |
| B. | right atria |
| C. | left ventricle |
| D. | right ventricle |
| Answer» E. | |
| 820. |
The immediate treatment of acute myocardial infarction are |
| A. | glyceryl trinitrate |
| B. | oxygen supply |
| C. | aspirin |
| D. | all of above |
| Answer» E. | |
| 821. |
The deoxygenated blood from legs is returned to the heart by many veins which empty into |
| A. | inferior artery |
| B. | inferior vana cava |
| C. | femoral artery |
| D. | superior artery |
| Answer» C. femoral artery | |
| 822. |
In the body, the weight of blood is about |
| A. | 1/12th of body |
| B. | 1/5th of body |
| C. | 1/8th of body |
| D. | 1/4th of body |
| Answer» B. 1/5th of body | |
| 823. |
In the upper thigh, the external iliac becomes |
| A. | inferior artery |
| B. | celiac artery |
| C. | femoral artery |
| D. | superior artery |
| Answer» D. superior artery | |
| 824. |
The vein through which food molecules goes towards the heart is called |
| A. | hepatic vein |
| B. | portal vein |
| C. | lateral vein |
| D. | ileum vein |
| Answer» B. portal vein | |
| 825. |
The esophagus connects the pharynx to the |
| A. | kidney |
| B. | stomach |
| C. | lungs |
| D. | liver |
| Answer» C. lungs | |
| 826. |
The diet which contains the required essential nutrients in the right proportions is |
| A. | opsin diet |
| B. | insoluble diet |
| C. | balanced diet |
| D. | soluble diet |
| Answer» D. soluble diet | |
| 827. |
The nutrients that are required by plants in large quantities are considered as |
| A. | mega nutrients |
| B. | chemical nutrients |
| C. | micronutrients |
| D. | macronutrients |
| Answer» E. | |
| 828. |
The magnesium is important for enzymes to produce |
| A. | sugars |
| B. | fats |
| C. | carbohydrates |
| D. | all of above |
| Answer» E. | |
| 829. |
The nutrients that are required by plants in smaller quantities are considered as |
| A. | micronutrients |
| B. | macronutrients |
| C. | mega nutrients |
| D. | chemical nutrients |
| Answer» B. macronutrients | |
| 830. |
The gut disorder in which sufferer experiences hard feces with difficulty to eliminate is called |
| A. | acidity |
| B. | diarrhea |
| C. | constipation |
| D. | appendix infection |
| Answer» D. appendix infection | |
| 831. |
The grains, legumes and eggs are considered as dietary sources of |
| A. | carbolic acid |
| B. | proteins |
| C. | citric acid |
| D. | carboxylic acid |
| Answer» C. citric acid | |
| 832. |
The medicines that are used to cure constipation are known as |
| A. | methylxanthines |
| B. | leprostatistics |
| C. | paracetamol |
| D. | laxatives |
| Answer» E. | |
| 833. |
The droughts, unequal distribution of food, increased population and flooding are the causes of |
| A. | typhoid |
| B. | dengue fever |
| C. | malaria |
| D. | famine |
| Answer» E. | |
| 834. |
The disease which is caused by a deficiency of vitamin-C is |
| A. | scurvy |
| B. | anemia |
| C. | rickets |
| D. | insomnia |
| Answer» B. anemia | |
| 835. |
The 'UNICEF' stands for |
| A. | United Nations Curing Funds |
| B. | United Nations Children's Fund |
| C. | Union Nations Cancer Fund |
| D. | United Nationals Cancer Finances |
| Answer» C. Union Nations Cancer Fund | |
| 836. |
The macronutrient which is a structural component of the cell wall and activates the enzymes is |
| A. | boron dioxide |
| B. | carbon monoxide |
| C. | nitrogen dioxide |
| D. | calcium |
| Answer» E. | |
| 837. |
The vitamin which is needed to maintain calcium and phosphorus levels in the blood is |
| A. | vitamin A |
| B. | vitamin D |
| C. | vitamin B |
| D. | vitamin C |
| Answer» C. vitamin B | |
| 838. |
The micronutrient which is involved in water osmosis is |
| A. | zinc |
| B. | copper |
| C. | chlorine |
| D. | manganese |
| Answer» D. manganese | |
| 839. |
The apoptosis is classified as |
| A. | programmed cell death |
| B. | non-programmed cell death |
| C. | accidental cell death |
| D. | mitotic cell death |
| Answer» B. non-programmed cell death | |
| 840. |
The biologist August Weismann described the significance of meiosis for inheritance in |
| A. | 1858 |
| B. | 1862 |
| C. | 1890 |
| D. | 1878 |
| Answer» D. 1878 | |
| 841. |
The maintenance of chromosomal set is considered as importance of |
| A. | thylakoids |
| B. | phragmoplast |
| C. | mitosis |
| D. | meiosis |
| Answer» D. meiosis | |
| 842. |
The meiosis is important element for |
| A. | asexual reproduction |
| B. | sexual reproduction |
| C. | binary fission |
| D. | budding |
| Answer» C. binary fission | |
| 843. |
The homologous chromosomes will remain as bivalent after |
| A. | passing over |
| B. | crossing over |
| C. | taking over |
| D. | making over |
| Answer» C. taking over | |
| 844. |
The chromosomes are arranged along the cell equator to form |
| A. | metaphase plate |
| B. | anaphase plate |
| C. | telophase plate |
| D. | prophase plate |
| Answer» B. anaphase plate | |
| 845. |
The part of the body in which sloughed cells are replaced by the new cells is |
| A. | kidneys and lungs |
| B. | wind pipe |
| C. | esophagus |
| D. | digestive tract |
| Answer» E. | |
| 846. |
The cells of malignant tumors are classified as |
| A. | cancer cells |
| B. | fission cells |
| C. | bud cells |
| D. | insulated cells |
| Answer» B. fission cells | |
| 847. |
The process by which cytokinesis occurs in animal cells is called |
| A. | vessel elements |
| B. | cleavage |
| C. | chromatin elements |
| D. | mitotic elements |
| Answer» C. chromatin elements | |
| 848. |
The number of kinetochores fibers in metaphase that are attached to poles of chromosomes are |
| A. | eight |
| B. | four |
| C. | two |
| D. | ten |
| Answer» D. ten | |
| 849. |
The example of cells that remain in the G0 phase for an indefinite period is |
| A. | neutrons |
| B. | electrons |
| C. | neurons |
| D. | protons |
| Answer» D. protons | |
| 850. |
The first phase of the cell cycle is known as |
| A. | forth gap |
| B. | third gap |
| C. | second gap |
| D. | first gap |
| Answer» E. | |