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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.
| 651. |
In the electron microscope, the lenses that focus the image onto the screen is called |
| A. | electron lenses |
| B. | neutron lenses |
| C. | light lenses |
| D. | electromagnetic lenses |
| Answer» E. | |
| 652. |
The cells in which chromosomes are not in pairs are classified as |
| A. | haploid cells |
| B. | diploid cells |
| C. | bud cells |
| D. | benign cells |
| Answer» B. diploid cells | |
| 653. |
Considering phases of meiosis II, the uncoiling of the chromosomes into the chromatin is classified as |
| A. | micro phase II |
| B. | nano phase II |
| C. | telophase II |
| D. | telephase II |
| Answer» D. telephase II | |
| 654. |
The example of an organism in which cell division takes place through regeneration is |
| A. | sea horse |
| B. | jelly fish |
| C. | sea star |
| D. | hydra |
| Answer» D. hydra | |
| 655. |
The cells that form the body of the organisms are |
| A. | stamen cells |
| B. | daughter cells |
| C. | stomata cells |
| D. | somatic cells |
| Answer» E. | |
| 656. |
The series of events from the production of cells until the cell produces new cells after completion of mitosis is called |
| A. | cell osmosis |
| B. | cell cycle |
| C. | cell vessel |
| D. | cell epidermal |
| Answer» C. cell vessel | |
| 657. |
The high blood pressure means |
| A. | obesity |
| B. | hypertension |
| C. | diabetes |
| D. | hypotension |
| Answer» C. diabetes | |
| 658. |
The function of inferior mesenteric artery is to supply blood to part of |
| A. | ribs and arms |
| B. | rectum and large intestine |
| C. | rectum and small intestine |
| D. | gonads and small intestine |
| Answer» C. rectum and small intestine | |
| 659. |
The blood cells that are colorless and do not contain any pigments are classified as |
| A. | white blood cells |
| B. | red blood cells |
| C. | platelets |
| D. | antigens |
| Answer» B. red blood cells | |
| 660. |
The clumping of cells is known as |
| A. | clotting |
| B. | agglutination |
| C. | mutation |
| D. | glutathione |
| Answer» C. mutation | |
| 661. |
The blood cells that do not have any pigment and nucleus are |
| A. | Agranulocytes |
| B. | erythrocytes |
| C. | leukocytes |
| D. | thrombocytes |
| Answer» E. | |
| 662. |
In aerobic respiration, the number of ATP produced as the net profit is |
| A. | 36 |
| B. | 18 |
| C. | 32 |
| D. | 28 |
| Answer» B. 18 | |
| 663. |
The site of dark reactions is |
| A. | granum of chloroplasts |
| B. | chlorophyll of chloroplasts |
| C. | stroma of chloroplasts |
| D. | chromatin of chloroplasts |
| Answer» D. chromatin of chloroplasts | |
| 664. |
The final products of anaerobic respiration can be |
| A. | lactic acid only |
| B. | ethanol and CO2 only |
| C. | nitric acid |
| D. | lactic acid and ethanol and CO2 |
| Answer» E. | |
| 665. |
As the intensity of light increases, the rate of photosynthesis |
| A. | increases |
| B. | decreases |
| C. | remains same |
| D. | none of above |
| Answer» B. decreases | |
| 666. |
The percentage of the surface of leaves which is covered with stomata is |
| A. | 2.2 - 5% |
| B. | 0.1 - 0.4% |
| C. | 3 - 4% |
| D. | 1 - 2% |
| Answer» E. | |
| 667. |
The international organization IUCN is an abbreviation of |
| A. | Internal Union Council for Natural gas |
| B. | International Union Council for Nature |
| C. | International Union for Conservation of Nature |
| D. | Internal United Council of Nations |
| Answer» D. Internal United Council of Nations | |
| 668. |
After two-kingdom classification, the third kingdom proposed by Ernst Haeckel in 1866 is |
| A. | protista |
| B. | protozoan |
| C. | paramecium |
| D. | algae |
| Answer» B. protozoan | |
| 669. |
The genus name to which pea plant belongs is |
| A. | tigrina |
| B. | pisum |
| C. | sporic |
| D. | sapiens |
| Answer» C. sporic | |
| 670. |
Considering the classification hierarchy, the group of related genera is known as |
| A. | species |
| B. | family |
| C. | phylum |
| D. | genus |
| Answer» C. phylum | |
| 671. |
The genus in taxonomic hierarchies is known as a group of related |
| A. | family |
| B. | phylum |
| C. | order |
| D. | species |
| Answer» E. | |
| 672. |
The smooth muscles are found in walls of |
| A. | urinary bladder |
| B. | blood vessels |
| C. | alimentary canal |
| D. | all of above |
| Answer» E. | |
| 673. |
The cell membranes are also known as |
| A. | active membrane |
| B. | passive membrane |
| C. | permeable membrane |
| D. | semi-permeable membrane |
| Answer» E. | |
| 674. |
The tissues that provide flexibility and strength to the plants are called |
| A. | endocytosis tissues |
| B. | exocytosis tissues |
| C. | connective tissues |
| D. | support tissues |
| Answer» E. | |
| 675. |
The resolving power of a light microscope is |
| A. | 5 micrometer |
| B. | 2 micrometer |
| C. | 0.5 micrometer |
| D. | 0.2 micrometer |
| Answer» E. | |
| 676. |
The mesophyll present in leaves are considered as the site of |
| A. | lipid synthesis |
| B. | protein synthesis |
| C. | photosynthesis |
| D. | respiration |
| Answer» D. respiration | |
| 677. |
The phase of meiosis in which chromosomes arrives at poles is |
| A. | telophase I |
| B. | prephase I |
| C. | metaphase I |
| D. | anaphase I |
| Answer» B. prephase I | |
| 678. |
The cytokinesis is also known as division of |
| A. | vacuoles |
| B. | chromosomes |
| C. | mitochondria |
| D. | cytoplasm |
| Answer» E. | |
| 679. |
In metaphase II, the sister chromatids are called |
| A. | parent chromosomes |
| B. | parent cells |
| C. | daughter cells |
| D. | sister chromosomes |
| Answer» E. | |
| 680. |
The phase in which there is no duplication of chromosomes is |
| A. | C-phase |
| B. | T-phase |
| C. | S-phase |
| D. | M-phase |
| Answer» D. M-phase | |
| 681. |
In the M phase, the cell divides by mitosis into the |
| A. | two daughter cells |
| B. | four daughter cells |
| C. | six daughter cells |
| D. | eight daughter cells |
| Answer» B. four daughter cells | |
| 682. |
The sources from which humans can fulfill the deficiency of vitamin A are |
| A. | yellow/orange fruits |
| B. | leafy vegetables |
| C. | fish and liver |
| D. | all of above |
| Answer» E. | |
| 683. |
The butter is solid at room temperature because of more |
| A. | citric fatty acids |
| B. | nitric fatty acids |
| C. | saturated fatty acids |
| D. | unsaturated fatty acids |
| Answer» D. unsaturated fatty acids | |
| 684. |
The process through which embryonic cells are transformed into mature cells is called |
| A. | cell differentiation |
| B. | cell transformation |
| C. | cell insulation |
| D. | cell solubility |
| Answer» B. cell transformation | |
| 685. |
The micronutrient which is a component of the enzyme responsible for the reduction of nitrates to ammonia is |
| A. | phosphoric acid |
| B. | molybdenum |
| C. | Sulphuric acid |
| D. | potash alum |
| Answer» C. Sulphuric acid | |
| 686. |
The protein portion of food is partially digested by |
| A. | opsin |
| B. | pepsin |
| C. | pyloric |
| D. | amylase |
| Answer» C. pyloric | |
| 687. |
The organelle which is found only in eukaryotes is |
| A. | mitochondria |
| B. | Golgi bodies |
| C. | plastids |
| D. | endoplasmic reticulum |
| Answer» B. Golgi bodies | |
| 688. |
The small membrane which bounds the Golgi sacs is classified as |
| A. | Golgi vesicles |
| B. | protein vesicles |
| C. | synthetic vesicles |
| D. | lipid vesicles |
| Answer» B. protein vesicles | |
| 689. |
The magnification power of transmission electron microscope |
| A. | 250000 |
| B. | 450000 |
| C. | 320000 |
| D. | 150000 |
| Answer» B. 450000 | |
| 690. |
The forms of endocytosis are |
| A. | phagocytosis only |
| B. | pinocytosis only |
| C. | microcytosis |
| D. | phagocytosis and pinocytosis |
| Answer» E. | |
| 691. |
The set of cisternae present in cells is called |
| A. | Golgi complex |
| B. | Golgi vesicles |
| C. | protein vesicles |
| D. | synthetic vesicles |
| Answer» B. Golgi vesicles | |
| 692. |
The phloem tissue consists of |
| A. | companion cells only |
| B. | sieve tube cells only |
| C. | connective cells |
| D. | companion and sieve tube cells |
| Answer» E. | |
| 693. |
The water is drawn into the mesophyll cells from |
| A. | xylem |
| B. | phloem |
| C. | cortex |
| D. | epidermis |
| Answer» B. phloem | |
| 694. |
The temporary seal at damaged areas is classified as |
| A. | clot |
| B. | cristae |
| C. | sternum |
| D. | none of above |
| Answer» B. cristae | |
| 695. |
The mutation in hemoglobin genes leads to the production of defective |
| A. | hemoglobin |
| B. | antigens |
| C. | neutrophils |
| D. | basophils |
| Answer» B. antigens | |
| 696. |
The function of renal arteries is to supply blood to |
| A. | kidneys |
| B. | liver and stomach |
| C. | arms and shoulders |
| D. | rectum and small intestine |
| Answer» B. liver and stomach | |
| 697. |
The boiling point of water is hotter than the freezing point of water is a |
| A. | qualitative observation |
| B. | quantitative observation |
| C. | abstract observation |
| D. | none of above |
| Answer» B. quantitative observation | |
| 698. |
The weight of one-liter ethanol in grams is |
| A. | 789 grams |
| B. | 820 grams |
| C. | 582 grams |
| D. | 987 grams |
| Answer» B. 820 grams | |
| 699. |
The time for diastole in one heartbeat is |
| A. | 0.6 seconds |
| B. | 0.8 seconds |
| C. | 0.4 seconds |
| D. | 0.5 seconds |
| Answer» D. 0.5 seconds | |
| 700. |
The macrophages produced by monocytes are responsible for |
| A. | absorbing hydrogen |
| B. | absorbing oxygen |
| C. | engulfing germs |
| D. | preventing clotting |
| Answer» D. preventing clotting | |