Cell Biology(Biology ) Questions and Answers

Question 1. Cell theory proposes that all living cells arise from
  1.    fossils
  2.    plant cells
  3.    pre-existing cells
  4.    new cells
Explanation:-
Answer: Option C. -> pre-existing cells
Answer: (c).pre-existing cells
Question 2. Chloroplast contain a green pigment called
  1.    leaf
  2.    stem
  3.    chlorophyll
  4.    chromoplast
Explanation:-
Answer: Option C. -> chlorophyll
Answer: (c).chlorophyll
Question 3. Three main types of plastids are chloroplast, chromoplast and
  1.    leukocytes
  2.    leucoplasts
  3.    chlorophyll
  4.    magneplasts
Explanation:-
Answer: Option B. -> leucoplasts
Answer: (b).leucoplasts
Question 4. Diploid chromosome number is found in normal body cell whereas haploid is found in
  1.    germ cells
  2.    brain cells
  3.    meristemetic cells
  4.    sensory cells
Explanation:-
Answer: Option A. -> germ cells
Answer: (a).germ cells
Question 5. Aqueous ground soluble part of cytoplasm is called
  1.    cytosol
  2.    vacuole
  3.    mitochondria
  4.    nucleus
Explanation:-
Answer: Option A. -> cytosol
Answer: (a).cytosol
Question 6. In blood of mammals ,plasma
  1.    constitutes 45% of blood
  2.    contains corpuscles
  3.    contains platelets
  4.    is the fluid part of blood
Explanation:-
Answer: Option D. -> is the fluid part of blood
Answer: (d).is the fluid part of blood
Question 7. Blood is called blood tissue due to the presence of
  1.    blood cells only
  2.    platelets only
  3.    antibodies
  4.    blood cells and platelets
Explanation:-
Answer: Option D. -> blood cells and platelets
Answer: (d).blood cells and platelets
Question 8. Formation of a local blood clot in an artery is called as
  1.    thrombin
  2.    thrombosis
  3.    prothrombin
  4.    thrombokinase
Explanation:-
Answer: Option B. -> thrombosis
Answer: (b).thrombosis
Question 9. Plasma does not contain
  1.    erythrocytes
  2.    antibodies
  3.    serum albumin
  4.    serum globulin
Explanation:-
Answer: Option A. -> erythrocytes
Answer: (a).erythrocytes
Question 10. Bicarbonate ions (HCO₃⁻) in plasma indicate the presence of
  1.    carbonic acid
  2.    uric acid
  3.    carbohydrates
  4.    carbon dioxide
Explanation:-
Answer: Option D. -> carbon dioxide
Answer: (d).carbon dioxide
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