Biology/Biology MCQS section -3 Sample Test,Sample questions

Question:
An irregular mode of reproduction resulting in the development of an embryo without fertilization is called

1.Parthenogenesis 2.Apogamy 3.Sporophytic budding

Select the correct answer using the code given below.

1.1 only

2.2 only

3.2 and 3 only

4.1, 2 and 3


Question:
Artocarpus integra is the scientific name of ___________.

1.Guava

2.Pineapple

3.Silver Oak

4. Jack fruit


Question:
Biological control is to check growth of 

1.plants

2.animals

3.weeds

4.one pest by another


Question:
Bone strength in later life depends on

1.the formation of dense bones during youth

2.the increased calcium absorption in the elderly

3. the increased production of estrogen after menopause

4.reducing physical activity to protect bones


Question:
Deep fried foods are carcinogenic because they are rich in

1.Nicotine

2.Hydrocarbons

3.Fats

4.All of the above


Question:
Every ecosystem must have

1.Autotrophs

2.Heterotrophs

3.Both A & B

4.photosynthesizers


Question:
Goosebumps are caused by contractions of the

1.Muscles

2.Nerves

3.Bones

4. All of the above


Question:
In a nucleosome, the DNA is wrapped around

1. histone octamer

2.helix

3.double helix

4. None of the above


Question:
In ovaries, the final products of meiosis are

1.haploid gametes

2.diploid gametes

3. Both A & B

4.None of the above


Question:
In Paramecium, the food is moved to a specific spot by the movement of ______ which cover the entire surface of the cell.

1.cilia

2.villi

3.pseudopodia

4.vacuole


Question:
In which of the following, the cellular power plants - Mitochondria are absent?

1.Bacteria

2.Red Algae

3.Brown Algae

4. Green Algae


Question:
In which Organelle does Cellular Respiration Occur?

1.Chloroplast

2.ATP and NADPH

3.Mitochondria


Question:
Limbs of frog, lizard, bird and human are example of ______ organs.

1.Homogenous

2.Heterogeneous

3.Analogous

4.Homologous


Question:
Metastasis is the process by which _________

1. Cell divide rapidly under the influence of drugs

2. Cancer cell spread through the blood or lymphatic system to other site or organs

3.The Chromosome in cell nuclei are attached to the soindle before moving to the anaphase poles

4.Cancer cells are successfully inhibited to divide any further


Question:
Movement of cell against concentration gradient is called

1. active transport

2.diffusion

3.osmosis

4.passive transport


Question:
Oxygen in our blood is transported by a protein named

1.keratin

2.myoglobi

3.collagen

4.haemoglobin


Question:
Plants grow in size because of 

1.addition of cells

2.increase in size of cells

3.enlargement of cells

4.elongation of cells


Question:
Plants grow in size because of 

1. addition of cells

2.increase in size of cells

3.enlargement of cells

4. elongation of cells


Question:
Select the correct statement about lymphocytes.

1.Lymph transport is faster than that occurring in veins

2. Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles

3.Lymph transport is only necessary when illness causes tissue swelling

4. Under normal conditions, lymph vessels are very high-pressure conduits


Question:
Select the correct statement about photosynthesis by primary producers.

1.Photosynthetic protists and prokaryotes Carry out the majority of the photosynthesis in aquatic communities.

2.Land plants carry out over 80% of the world's photosynthesis.

3.Cyanobacteria carry out more of the world's photosynthesis than protist do.

4.All of the above


Question:
Select the correct statement about the ureters.

1. The ureter is innervated by parasympathetic nerve endings only.

2.Ureters contain sphincters at the entrance to the bladder to prevent the backflow of urine.

3.The epithelium is stratified squamous like the skin, which allows a great deal of stretch.

4.The ureters are capable of peristalsis like that of the gastrointestinal tract.


Question:
Select the correct statement contrasting gametophytes and sporophytes.

1. Sporophytes are diploid, whereas gametophytes are haploid.

2.Sporophytes are vascular, whereas gametophytes are nonvascular.

3.Sporophytes are larger than gametophytes

4.All of the above


Question:
Spongy, porous bone tissue is also called

1.Compact bone

2.Bone fissure

3. Yellow bone marrow

4.Cancellous bone


Question:
The first formed primary xylem elements are called ___________.

1.Metaxylem

2.Protoxylem

3.Xylem fibres

4. Xylem parenchyma


Question:
The functional unit of the nervous system is the

1.Nephrons

2.Axons

3.Neurons

4. All of the above


Question:
The kidneys are stimulated to produce renin

1.when the pH of the urine decreases

2. when the specific gravity of urine rises above 1.10

3. when the peritubular capillaries are dilated

4. by a decrease in the blood pressure


Question:
The limbic system structure that regulates hunger is called the

1.Hypothalamus

2.Cerebellum

3.Pituitary gland

4.vacuole


Question:
The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages. The first stage is the ___________ stage.

1.Agar

2.Leafy

3.Chlorella

4.protonema


Question:
The sex of an offspring is determined by which of the following?

 


1.DNA of the female gamete

2.DNA of the male gamete

3.Neither the DNA of the male nor the female gamete

4. DNA of the male and the female gamete


Question:
The term aerotolerant anaerobe refers to an organism that

1.uses oxygen or grows without oxygen.

2. requires more oxygen than is present in air.

3.does not use oxygen but tolerates it.

4.requires less oxygen than is present in air.


Question:
Visceral fat is stored chiefly ____

1.within subcutaneous adipocytes

2.around the thighs and neck

3.around the abdominal organs

4.within the liver and spleen


Question:
What base is found in RNA but not in DNA?

1.Uracil

2.Cytosine

3.Adenine

4.Guanine


Question:
What carries Blood back to the Heart?


1.Veins

2.Arteries

3.Both A & B

4.None


Question:
What do genes code for?

1.Ptoteins

2.DNA

3.RNA

4.None


Question:
What does the central nervous system consists of?
 

1.Brain

2.Spinal cord

3.Nerves

4.All the above


Question:
What process accounts for species diversity?

1.Predation

2.Mitosis

3.Symbiosis

4.Meiosis


Question:
What three statements make up the cell theory?

1.All living things are made up of cells.

2.New cells come frome exisiting cells.

3. Cells are the basic unit of structure/function in living things.

4. All of the above


Question:
Where does protein synthesis take place in a cell?

1.Ribosomes

2.Mitochondria

3.Cytoplasm

4.Nucleus


Question:
Which best describes somatic mutations?

1.transmitted to progeny

2.not transmitted to progeny

3.Can't be identified

4. None of the above


Question:
Which of the following are involved directly in pulmonary circulation?

1.left ventricle, aorta, and inferior vena cava

2.right atrium, aorta, and left ventricle

3.superior vena cava, right atrium, and left ventricle

4.right ventricle, pulmonary artery, and left atrium


Question:
Which of the following is a feature of leptin?


1.It acts primarily on the brain

2.It is secreted by the brain and acts on fat cells

3.It is an enzyme

4.It is usually deficient in thin people


Question:
Which of the following is not a hormone found in animals?

 

 

1.Insulin

2.Auxins

3.Thyroxin

4.Adrenaline


Question:
Which of the following is true of enzymes?

1.Enzymes lowers the activation energy for the chemical reaction

2.Enzymes speed up the rate of a chemical reaction

3.Both A & B

4. Neither A nor B


Question:
Which of these best describes genetic drift?

1.Random fluctuations in the gene frequencies within a population Eliminate

2.The combining of alleles to create more genetic variations within a population

3.The movement of alleles between population

4.A planned method to reduce the number of inferior genes in a population


Question:
Which of these phosphorylates ADP to make ATP?

1.E

2.B

3.C

4.A


Question:
Which one of the following functions is not carried out by smooth endoplasmic reticulum?

1.Transport of materials

2.Synthesis of lipid

3.Synthesis of protein

4. Synthesis of steroid hormone


Question:
Which one of the following statements about lymph is correct?

1.Lymph is formed due to leakage of blood through capillaries.

2.Lymph contains blood cells such as RBC.

3. Lymph is also circulated by the blood circulating heart.

4. Lymph only transports hormones.


Question:
Which parts of the heart receive blood from the lungs?

1.Right ventricle

2.Left Atrium

3.Left Ventricle

4.Right Atrium


Question:
Which statement describes decomposers?

1. Decomposers are insignificant organisms in the ecosystem and can be absent in some ecosystems

2.Decomposers can produce their own source of energy and can sometimes act as primary producers.

3. Decomposers are those organisms that recycle matter in the ecosystem..

4.All the above


Question:
Which virus is not associated with cancer?

1. Epstein-Barr virus

2.Papillomavirus

3.Retrovirus

4.Hepatitis virus


More MCQS

  1. MCQs Question and Answer -Biology Set I
  2. MCQs Question and Answer -Biology Set 2
  3. MCQs Question and Answer -Biology Set 3
  4. MCQs Question and Answer -Biology Set 4
  5. Biology MCQS[NEET-2021 to 2022]-Anatomy mcq for competitive exams
  6. Biology MCQS[NEET-2021 to 2022]-Ecology mcq for competitive exams
  7. Biology MCQS[NEET-2021 to 2022]-Biology MCQS 2021
  8. Biology MCQS[NEET-2021 to 2022]-Biology (living world)
  9. Biology MCQS[NEET-2021 to 2022]-Plant anatomy mcq for competitive exams
  10. Biology MCQS[NEET-2021 to 2022]-CELL STRUCTURES AND FUNCTION mcq for competitive exams
  11. Biology MCQS[NEET-2021 to 2022]-General biology mcq for competitive exams
  12. Biology MCQS[NEET-2021 to 2022]-Human physiology
  13. Biology MCQS[NEET-2021 to 2022]-Ecology-II
  14. Biology MCQS[NEET-2021 to 2022]-Reproduction in plants
  15. Biology MCQS[NEET-2021 to 2022]-Human reproduction
  16. Biology MCQS[NEET-2021 to 2022]-Animal kingdom
  17. Biology MCQS[NEET-2021 to 2022]-Animal kingdom-2
  18. Biology MCQS[NEET-2021 to 2022]-Microorganisms
  19. Biology MCQS[NEET-2021 to 2022]-Natural resources and conservation
  20. Biology MCQS section -1
  21. Biology MCQS section -2
  22. Biology MCQS section -3
  23. Biology MCQS section -4
  24. Biology Corona and Cancer Mcq question
  25. Biology MCQ Question - Bioenergetics
  26. Biology MCQ Question - Biological Molecules
  27. Biology MCQ Question - Kingdom Fungi
  28. Biology MCQ Question - The Variety of Life
  29. Biology MCQ Question - Chromosome and DNA
  30. Biology MCQ Question - Coordination and Control
  31. Biology MCQ Question - Transport
  32. Biology MCQ Question - Biotechnology
  33. Biology MCQ Question - Chemical Bonding
  34. Biology MCQ Question - Diagnostic Test
  35. Biology MCQ Question - Ecosystem
  36. Biology MCQ Question - Gases
  37. Biology MCQ Question - Periodic Classification
  38. Biology MCQ Question - Solutions
  39. Biology MCQ Question - Alkyl Halides
  40. Biology MCQ Question - Organic Chemistry
  41. Biology MCQ Question - Growth and development
  42. CELL Mcq Questions
  43. Biology – Biomolecules – Structure of Proteins MCQs
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!