MCQOPTIONS
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MCQOPTIONS
This section includes 1844 Mcqs, each offering curated multiple-choice questions to sharpen your Grade10 knowledge and support exam preparation. Choose a topic below to get started.
| 1701. |
The stamens of insect-pollinated flowers are |
| A. | hang out |
| B. | open |
| C. | fused |
| D. | enclosed |
| Answer» E. | |
| 1702. |
In the female rabbit, the embryo develops into offsprings within |
| A. | 20 to 30 days |
| B. | 30 to 33 days |
| C. | 30 to 34 days |
| D. | 30 to 32 days |
| Answer» E. | |
| 1703. |
Respiration involves the mechanical and |
| A. | chemical process |
| B. | biological process |
| C. | physical process |
| D. | bio chemical process |
| Answer» E. | |
| 1704. |
Intercostal muscles are present in |
| A. | lungs |
| B. | diaphragm |
| C. | ribs |
| D. | pharynx |
| Answer» D. pharynx | |
| 1705. |
The smaller tubes within the chest cavity having cartilaginous plates called |
| A. | bronchi |
| B. | bronchioles |
| C. | alveoli |
| D. | all of above |
| Answer» B. bronchioles | |
| 1706. |
The process through which animals take oxygen (O2) from the air and release carbon dioxide (CO2) into the air is called |
| A. | breathing |
| B. | gaseous exchange |
| C. | respiratory exchange |
| D. | cellular respiration |
| Answer» B. gaseous exchange | |
| 1707. |
How many types of bronchitis are? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 1708. |
The thickness of biosphere is |
| A. | 20 Km |
| B. | 30 Km |
| C. | 40 Km |
| D. | 50 Km |
| Answer» B. 30 Km | |
| 1709. |
In 2010 the human population was |
| A. | 172510000 |
| B. | 171510000 |
| C. | 170520000 |
| D. | 173510000 |
| Answer» E. | |
| 1710. |
Recycling of one ton of paper can save |
| A. | 120 trees |
| B. | 130 trees |
| C. | 17 trees |
| D. | 18 trees |
| Answer» D. 18 trees | |
| 1711. |
The parasites that live inside the host's body are called |
| A. | temporary parasites |
| B. | ectoparasite |
| C. | endoparasite |
| D. | permanent parasites |
| Answer» D. permanent parasites | |
| 1712. |
The autotrophs present in an ecosystem are called |
| A. | primary consumers |
| B. | secondary consumers |
| C. | decomposers |
| D. | producers |
| Answer» E. | |
| 1713. |
In human excess carbon dioxide is removed and kept in balance by |
| A. | skin |
| B. | liver |
| C. | kidneys |
| D. | lungs |
| Answer» E. | |
| 1714. |
Human body temperature is maintained by |
| A. | skin |
| B. | liver |
| C. | kidneys |
| D. | lungs |
| Answer» B. liver | |
| 1715. |
The average lifetime for a donated kidney is ten to |
| A. | 12 years |
| B. | 13 years |
| C. | 14 years |
| D. | 15 years |
| Answer» E. | |
| 1716. |
The reabsorbed glomerular filtrate is |
| A. | 0.7 |
| B. | 0.65 |
| C. | 0.8 |
| D. | 0.99 |
| Answer» E. | |
| 1717. |
A cap-shaped structure that encloses glomerulus |
| A. | bowman's capsule |
| B. | glomerulus |
| C. | collecting duct |
| D. | papillary duct |
| Answer» B. glomerulus | |
| 1718. |
Considering the human bones, the mature bone cells are known as |
| A. | chondrocytes |
| B. | osteocytes |
| C. | zoophytes |
| D. | lymphocytes |
| Answer» C. zoophytes | |
| 1719. |
Which of the following is found in the epiglottis, pinna, etc.? |
| A. | hyaline cartilage |
| B. | elastic cartilage |
| C. | fibrous cartilage |
| D. | none of above |
| Answer» C. fibrous cartilage | |
| 1720. |
The elastic cartilage is present in |
| A. | invertebral discs |
| B. | knees and ankles |
| C. | nose, bronchial tubes and trachea |
| D. | pinna and epiglottis |
| Answer» E. | |
| 1721. |
The bone of the chest is called |
| A. | chest bone |
| B. | sternum |
| C. | hyoid |
| D. | rib |
| Answer» C. hyoid | |
| 1722. |
How many bones are present in the vertebral column? |
| A. | 26 |
| B. | 25 |
| C. | 24 |
| D. | 23 |
| Answer» B. 25 | |
| 1723. |
What is the term used for the specific combination of genes in an individual? |
| A. | phenotype |
| B. | sequence |
| C. | genotype |
| D. | physical qualities |
| Answer» D. physical qualities | |
| 1724. |
The law which states that the offspring gets the genes in pairs as of the male and female gametes is called the law of |
| A. | segregation |
| B. | assortment |
| C. | independent assortment |
| D. | dependent assortment |
| Answer» E. | |
| 1725. |
Considering the Deoxyribonucleic Acid (DNA) structure, the backbone outside the double helix is made up of |
| A. | sugar and nitrogen |
| B. | nitrogen and carbon |
| C. | phosphate and sugar |
| D. | phosphate and nitrogen |
| Answer» D. phosphate and nitrogen | |
| 1726. |
Model for the structure of DNA was presented by |
| A. | Gregor Johann Mendel |
| B. | Darwin and Lamark |
| C. | Alfred Russel Wallace |
| D. | j. Watson and F.Crick |
| Answer» E. | |
| 1727. |
Genotype represents the combination of |
| A. | cells |
| B. | chromosomes |
| C. | Deoxyribonucleic acid (DNA) |
| D. | genes |
| Answer» E. | |
| 1728. |
The ability of an organism to reproduce and survive is called |
| A. | fitness |
| B. | dominance selection power |
| C. | surviving power |
| D. | adaptation |
| Answer» B. dominance selection power | |
| 1729. |
The kind of variations that shows distinct phenotypes are classified as |
| A. | continuous variations |
| B. | intermediate variations |
| C. | independent variations |
| D. | discontinuous variations |
| Answer» E. | |
| 1730. |
Loci are the position of genes on |
| A. | deoxyribonucleic acid |
| B. | cell |
| C. | chromosomes |
| D. | ribonucleic acid |
| Answer» D. ribonucleic acid | |
| 1731. |
In Four O clock plant the three flower colors are red, white and |
| A. | green |
| B. | yellow |
| C. | pink |
| D. | black |
| Answer» D. black | |
| 1732. |
Chromatin, a complex material made of DNA and |
| A. | lipids |
| B. | proteins |
| C. | starch |
| D. | sugar |
| Answer» C. starch | |
| 1733. |
The material that is unable to filter through glomerulus capillaries is blood cells and |
| A. | lipids |
| B. | starch |
| C. | proteins |
| D. | fats |
| Answer» D. fats | |
| 1734. |
The peritoneal cavity is lined by |
| A. | peritoneum |
| B. | Epitoneum |
| C. | epidermis |
| D. | endodermis |
| Answer» B. Epitoneum | |
| 1735. |
Many collecting ducts join together to form |
| A. | distal convoluted |
| B. | proximal convoluted |
| C. | papillary duct |
| D. | collecting duct |
| Answer» D. collecting duct | |
| 1736. |
When there is an excess body fluid, kidneys form urine that is |
| A. | hypertonic |
| B. | isotonic |
| C. | hypotonic |
| D. | normal |
| Answer» D. normal | |
| 1737. |
Osmosis is the movement of water from hypotonic solution to hypertonic solution through |
| A. | permeable membrane |
| B. | semipermeable membrane |
| C. | photosynthesis |
| D. | simple water |
| Answer» C. photosynthesis | |
| 1738. |
Short underground stems surrounded by thick, fleshy leaves that contained stored food are called |
| A. | bulbs |
| B. | corms |
| C. | rhizomes |
| D. | stem tubers |
| Answer» B. corms | |
| 1739. |
The kind of fertilization in which the eggs are fertilized outside the body is called |
| A. | external fertilization |
| B. | internal fertilization |
| C. | diploid fertilization |
| D. | haploid fertilization |
| Answer» B. internal fertilization | |
| 1740. |
An important step in spreading of flowering plants is the evolution of |
| A. | leaf |
| B. | seed |
| C. | flower |
| D. | stem |
| Answer» C. flower | |
| 1741. |
The generative nucleus undergoes mitosis to produce |
| A. | spores |
| B. | microspores |
| C. | sperms |
| D. | pollen sac |
| Answer» D. pollen sac | |
| 1742. |
After the fertilization of egg cells in fallopian tubes, the zygote is carried to the |
| A. | uterus |
| B. | urethra |
| C. | seminal gland |
| D. | ovular glands |
| Answer» B. urethra | |
| 1743. |
The atmospheric gaseous nitrogen is converted during lightning and thunderstorms into |
| A. | oxides of carbon |
| B. | oxides of oxygen |
| C. | oxides of nitrogen |
| D. | nitric acid |
| Answer» D. nitric acid | |
| 1744. |
The process of denitrification returns nitrogen into the |
| A. | ecosystem |
| B. | atmosphere |
| C. | biosphere |
| D. | organism |
| Answer» C. biosphere | |
| 1745. |
The conversion of gaseous nitrogen into the nitrates with the help of bacteria is classified as |
| A. | biological oxygen fixation |
| B. | atmospheric oxygen fixation |
| C. | atmospheric nitrogen fixation |
| D. | biological nitrogen fixation |
| Answer» E. | |
| 1746. |
The combination of atmospheric nitrogen with hydrogen under high temperature and pressure is classified as |
| A. | atmospheric oxygen fixation |
| B. | atmospheric nitrogen fixation |
| C. | industrial nitrogen fixation |
| D. | biological nitrogen fixation |
| Answer» D. biological nitrogen fixation | |
| 1747. |
Small fish and crustaceans are also used to kill the larvae of |
| A. | butterfly |
| B. | aphids |
| C. | mosquitos |
| D. | pupa |
| Answer» D. pupa | |
| 1748. |
The bands of connective tissues that are made of collagen are called |
| A. | osteocytes |
| B. | chondrocytes |
| C. | ligaments and tendons |
| D. | cartilages |
| Answer» D. cartilages | |
| 1749. |
The cells present in cartilage are known as |
| A. | chondrocytes |
| B. | osteocytes |
| C. | zoophytes |
| D. | lymphocytes |
| Answer» B. osteocytes | |
| 1750. |
The cartilage which is similar to hyaline cartilage in which collagen fibers, as well as elastic fibers, are present is called |
| A. | hyaline cartilage |
| B. | elastic cartilage |
| C. | fibrous cartilage |
| D. | inelastic cartilage |
| Answer» C. fibrous cartilage | |