Mcqs on biology [General Biology]

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Mcqs on Biology are often used in standardized tests such as the SAT, ACT, GRE, and MCAT. They are also frequently used in classroom assessments and quizzes. Mcqs can be particularly useful in biology as they allow for a quick and efficient assessment of a student’s knowledge and understanding of complex biological concepts. Check the below mcqs on biology to check your biology knowledge

Q1. The basic unit of all living organisms is 

(a) A cell

(b) A molecule of glucose

(c) A set of proteins

(d) A drop of blood

(a) A cell

Q2. Fungi are always

(a) Autotrophic 

(b) Saprophytic

(c) Parasitic

(d) Heterotrophic

(d) Heterotrophic

Q3. Which of the following is a parasitic plant?   (a) Marchantia

(b) Kelp

(c) Mushroom

(d) Pteris

(c) Mushroom

Q4. Which of the following is an amphibian?   (a) Whale

(b) Turtle

(c) Cow

(d) Frog

(d) Frog

Q5. A cell cycle consists of 

(a) Interphase and mitosis

(b) GI, the Sphase, and G2 

(c) Prophase, metaphase, anaphase and telophase 

(d) Mitosis and meiosis

(a) Interphase and mitosis

Q6. Gene is 

(a) A segment of DNA or functional RNA

(b) A segment of DNA and histone 

(c) A segment of DNA, RNA and histone  

(d) All of the above

(a) A segment of DNA or functional RNA

Q7. The human cell contains

(a) 44 chromosomes 

(b) 48 chromosomes 

(c) 23 chromosomes

(d) 46 chromosomes

(d) 46 chromosomes

Q8. The only molecule in the living world that can  replicate itself is 

(a) RNA

(b) DNA

(c) Both DNA and RNA 

(d) Neither DNA nor RNA

(b) DNA

Q9. How many different kinds of amino acids are  specified by the genetic code? 

(a) 15 

(b) 20

(c) 12 

(d) 200

(b) 20

Q10. Deficiency of iron in human diet causes   (a) Goitre

(b) Anaemia

(c) Scurvy

(d) Rickets

(b) Anaemia

Q11. Enzymes help in

(a) Respiration

(b) Reproduction

(c) Immune system

(d) Digestion of food

(d) Digestion of food

Q12. Food is normally digested in the

(a) Large intestines

(b) Stomach  

(c) Small intestines

(d) Liver

(c) Small intestines

Q13. The process in which light energy converted into chemical energy is called 

(a) Respiration

(b) Photosynthesis

(c) Transpiration

(d) None of these

(b) Photosynthesis

Q14. Photosynthesis in plants takes place faster in 

(a) Yellow light

(b) White light

(c) Red light

(d) Darkness

(b) White light

Q15. Which of the following Plants have while animals lack it.

(a) Starch

(b) Cellulose

(c) Protein

(d) Fat

(b) Cellulose

Q16. Which of the following blood groups  is called a universal donor? 

(a) O

(b) AB 

(c) A  

(d) B

(a) O

Q17. blood in humans contain_____________ percentage  of plasma.

(a) 35%

(b) 40%

(c) 50%  

(d) 65%

(d) 65%

Q18. Name the smallest living cell 

(a) bacterium 

(b) bread mould  

(c) mycoplasma

(d) virus

(c) mycoplasma

Q19. Which of the following tissue is involved in the transport of food  material in plants

(a) parenchyma 

(b) phloem

(c) sclerenchyma 

(d) xylem

(b) phloem

Q20. Which of the following disease not transmitted by house – fly  

(a) cholera  

(b) enteric fever  

(c) dengue fever  

(d) dysentery

(d) dysentery

Q21. The diaphragm assists in 

(a) digestion   

(b) respiration   

(c) circulation of blood  

(d) excretion of waste

(b) respiration

Q22. Which of the following helps us in  protecting from infection?

(A) R.B.C

(B) W.B.C

(C) Blood Plasma  

(D) Haemoglobin

(B) W.B.C

Q22. The main function of white blood  cells is

(A) Transport of oxygen  

(B) Transport of carbon dioxide  

(C) To develop resistance towards  disease. (D) None of the above

(C) To develop resistance towards  disease

Q23. Which light is most effective in  photosynthesis?

(A) Red

(B) Blue  

(C) Green 

(D) Violet

(A) Red

Q24. The largest gland in human body is

(A) Pancreas

(B) Liver

(C) Salivary gland

(D) Adrenal gland

(B) Liver

Q25. What is estrogen? 

(A) Bone 

(B) Hormone

(C) Enzyme 

(D) Vitamin

(B) Hormone

Q26 Which is the smallest gland in the  human body? 

(A) Adrenal 

(B) Thyroid  

(C) Pancreas 

(D) Pituitary

(D) Pituitary
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