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MCQOPTIONS
This section includes 2103 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 2001. |
Diploid chromosome number is found in normal body cell whereas haploid is found in |
| A. | germ cells |
| B. | brain cells |
| C. | meristemetic cells |
| D. | sensory cells |
| Answer» B. brain cells | |
| 2002. |
Aqueous ground soluble part of cytoplasm is called |
| A. | cytosol |
| B. | vacuole |
| C. | mitochondria |
| D. | nucleus |
| Answer» B. vacuole | |
| 2003. |
Three main types of plastids are chloroplast, chromoplast and |
| A. | leukocytes |
| B. | leucoplasts |
| C. | chlorophyll |
| D. | magneplasts |
| Answer» C. chlorophyll | |
| 2004. |
Those tubular membranes which separates material of endoplasmic reticulum are called |
| A. | chromatids |
| B. | cisternae |
| C. | tubular membranes |
| D. | tubules |
| Answer» C. tubular membranes | |
| 2005. |
Cell sap is found inside |
| A. | Protoplasm |
| B. | Cytoplasm |
| C. | Nucleoplasm |
| D. | Vacuoles |
| Answer» E. | |
| 2006. |
Cell theory proposes that all living cells arise from |
| A. | fossils |
| B. | plant cells |
| C. | pre-existing cells |
| D. | new cells |
| Answer» D. new cells | |
| 2007. |
There are 48 chromosomes in a cell of a |
| A. | chimpanzee |
| B. | human being |
| C. | drosophila |
| D. | monkey |
| Answer» B. human being | |
| 2008. |
Cellulose, pectin, and hemicelluloses together make up to form a |
| A. | primary wall |
| B. | secondary wall |
| C. | middle wall |
| D. | tertiary wall |
| Answer» B. secondary wall | |
| 2009. |
Absence of enzyme which helps in catabolism of lipids, lead towards disease called |
| A. | glycogenesis |
| B. | hay fever |
| C. | Tay sach's |
| D. | polio |
| Answer» D. polio | |
| 2010. |
Arrangement of molecules of a primary wall is in sequence of |
| A. | zigzag |
| B. | criss-cross |
| C. | spiral |
| D. | conjugated |
| Answer» C. spiral | |
| 2011. |
All is true for blood pressure, but, |
| A. | remains the same across whole body |
| B. | highest in aortic arch |
| C. | weaker in veins |
| D. | highest in ventricular systole |
| Answer» B. highest in aortic arch | |
| 2012. |
Activities ensuring the life of a cell, are carried out in |
| A. | Cytoplasm |
| B. | Protoplasm |
| C. | Vacuoles |
| D. | Mitochondrion |
| Answer» C. Vacuoles | |
| 2013. |
In mammals, the cornified skin layer is replaced by |
| A. | Keratin |
| B. | Granular layer |
| C. | Malpighian layer |
| D. | dermis |
| Answer» C. Malpighian layer | |
| 2014. |
Muscle wasting includes |
| A. | skeletal muscles |
| B. | cardiac muscles |
| C. | organic muscles |
| D. | inorganic muscles |
| Answer» D. inorganic muscles | |
| 2015. |
Processing an opposite effect to the change is known as |
| A. | positive Feedback |
| B. | supportive feedback |
| C. | negative feedback |
| D. | reflux feedback |
| Answer» D. reflux feedback | |
| 2016. |
Lobed nucleus and granulated cytoplasm are characteristics of |
| A. | lymphocytes |
| B. | phagocytes |
| C. | monocytes |
| D. | polymorphs |
| Answer» E. | |
| 2017. |
Blood pressure reaches 0mm of mercury in |
| A. | ventricular systole |
| B. | ventricular diastole |
| C. | vena cava just before it opens in right atrium of heart |
| D. | vena cave just before it opens in left atrium of heart |
| Answer» D. vena cave just before it opens in left atrium of heart | |
| 2018. |
Lysosomes which eat parts of their own cell in state of starvation are called |
| A. | autophagosomes |
| B. | autophagocytosis |
| C. | auto retarded |
| D. | auto destruction |
| Answer» B. autophagocytosis | |
| 2019. |
Tissues can be classified as |
| A. | simple tissue |
| B. | complex tissue |
| C. | differentiation tissues |
| D. | all of above |
| Answer» E. | |
| 2020. |
Homoeothermic refers to all but most |
| A. | mammals |
| B. | nursing females |
| C. | hairy males |
| D. | invertebrates |
| Answer» E. | |
| 2021. |
Life span of platelets is |
| A. | 1 day or less |
| B. | 6 days |
| C. | 60 days |
| D. | 120 days |
| Answer» C. 60 days | |
| 2022. |
Tissue rejection may be avoided through |
| A. | biopsy |
| B. | ultrasound |
| C. | x-rays |
| D. | autopsy |
| Answer» D. autopsy | |
| 2023. |
Special substance produced by bone cells is |
| A. | protoplasm |
| B. | neutrophil |
| C. | hemoglobin |
| D. | chlorophyll |
| Answer» D. chlorophyll | |
| 2024. |
Protein structures which are long, unbranched and slender tubules are called |
| A. | microfilaments |
| B. | microtubules |
| C. | intermediate tubules |
| D. | chromatin fibers |
| Answer» C. intermediate tubules | |
| 2025. |
Life span of white blood cells is |
| A. | 1 day or less |
| B. | 6 days |
| C. | 60 days |
| D. | 120 days |
| Answer» B. 6 days | |
| 2026. |
Which is true about white blood cells (leukocytes) |
| A. | are larger in size than red blood cells |
| B. | are more in number than red blood cells |
| C. | do not contain hemoglobin |
| D. | contain nucleus |
| Answer» C. do not contain hemoglobin | |
| 2027. |
Downside of immuno-suppressive drug is that |
| A. | recipient feels lethargic after transplant |
| B. | treatment must be done on permanent basis |
| C. | tissue rejection can be avoided |
| D. | enzymes act as limiting factor on recipients recovery |
| Answer» C. tissue rejection can be avoided | |
| 2028. |
In addition to hemoglobin, bone marrow also produces |
| A. | lymphocytes |
| B. | phagocytes |
| C. | monocytes |
| D. | polymorphs |
| Answer» C. monocytes | |
| 2029. |
Cells containing single nucleus are called as |
| A. | mononucleated |
| B. | dinucleated |
| C. | single nucleated |
| D. | multinucleated |
| Answer» B. dinucleated | |
| 2030. |
Place on chromosome where spindle fibers are attached during cell division is called |
| A. | chromatids |
| B. | centromere |
| C. | centrioles |
| D. | mitochondria |
| Answer» C. centrioles | |
| 2031. |
Rough endoplasmic reticulum assists in synthesis of |
| A. | carbohydrates |
| B. | proteins |
| C. | fats, glucose, starch |
| D. | lipids |
| Answer» C. fats, glucose, starch | |
| 2032. |
Presence of nucleus in a cell was reported by |
| A. | Robert Hooke |
| B. | Robert Brown |
| C. | Lorenz Oaken |
| D. | Theodor Schwann |
| Answer» C. Lorenz Oaken | |
| 2033. |
Proteins are synthesized within mitochondria that?s why it is called |
| A. | self-duplication |
| B. | self-replication |
| C. | self-multiplication |
| D. | self-division |
| Answer» C. self-multiplication | |
| 2034. |
Organisms which have a distinct nucleus with (chromatin material and a nucleolus) are called |
| A. | Prokaryotic |
| B. | eukaryotic |
| C. | protozoan's |
| D. | protoctists |
| Answer» C. protozoan's | |
| 2035. |
Pollination and dispersal of seeds is usually done by help of |
| A. | chloroplast |
| B. | chromoplast |
| C. | chlorophyll |
| D. | chromophyll |
| Answer» C. chlorophyll | |
| 2036. |
Organelle which deals with formation of decomposition of hydrogen peroxide is called |
| A. | peroxisomes |
| B. | ribosome |
| C. | peroxides |
| D. | oxisomes |
| Answer» B. ribosome | |
| 2037. |
Peroxisomes are usually found in protozoa and |
| A. | protoctist |
| B. | monera |
| C. | yeast |
| D. | fungi |
| Answer» D. fungi | |
| 2038. |
A very important organelle which is also called power house of cell is |
| A. | mitochondria |
| B. | Golgi complex |
| C. | nucleus |
| D. | cell membrane |
| Answer» B. Golgi complex | |
| 2039. |
Secretions produced by ribosome are passed via endoplasmic reticulum and |
| A. | Golgi complex |
| B. | mitochondria |
| C. | nucleus |
| D. | vacuole |
| Answer» B. mitochondria | |
| 2040. |
Location of furrow during a cell division is done by |
| A. | mitochondria |
| B. | Golgi complex |
| C. | centrioles |
| D. | ribosome |
| Answer» D. ribosome | |
| 2041. |
In folds of membranes of mitochondrion are called |
| A. | cisternae |
| B. | cristae |
| C. | chromatin fibers |
| D. | chromatic networks |
| Answer» C. chromatin fibers | |
| 2042. |
Organisms which lack mitosis division and use binary fission method for cell division are known as |
| A. | prokaryotes |
| B. | eukaryotes |
| C. | yeast |
| D. | fungi |
| Answer» B. eukaryotes | |
| 2043. |
Micrographic is most famous work on discovery of cell which is given by |
| A. | Robert Hooke |
| B. | Lorenz Oaken |
| C. | Theodor Schwann |
| D. | F. Miescher |
| Answer» B. Lorenz Oaken | |
| 2044. |
Cytoplasm is filled with 80% of |
| A. | salts |
| B. | water |
| C. | sugars |
| D. | air |
| Answer» C. sugars | |
| 2045. |
Ribosome are synthesized in part of cell called |
| A. | Golgi complex |
| B. | mitochondria |
| C. | nucleolus |
| D. | nucleus |
| Answer» D. nucleus | |
| 2046. |
Cell membrane is chemically composed of 40-60 % of |
| A. | fats |
| B. | lipids |
| C. | sugar |
| D. | cytosol |
| Answer» C. sugar | |
| 2047. |
Lysosomes are cytoplasmic organelles which are specialized in their |
| A. | histology |
| B. | morphology |
| C. | cytology |
| D. | Chemical biology |
| Answer» C. cytology | |
| 2048. |
Nucleus contain a network of subdivisions called |
| A. | microfilaments |
| B. | microtubules |
| C. | chromatin fibers |
| D. | chromatin network |
| Answer» E. | |
| 2049. |
Plants receive their nutrients mainly from |
| A. | chlorophyll |
| B. | atmosphere |
| C. | light |
| D. | soil |
| Answer» E. | |
| 2050. |
Ozone hole refers to |
| A. | hole in ozone layer |
| B. | decrease in the ozone layer in troposphere |
| C. | decrease in thickness of ozone layer in stratosphere |
| D. | increase in the thickness of ozone layer in troposphere |
| Answer» D. increase in the thickness of ozone layer in troposphere | |