10th Class BIOLOGY

(A)       CO₂ in O₂ out            
(B)       CO₂ in CO₂ out            
(C)       O₂ in O₂ out            
(D)       O₂ in CO₂ out

(A)       Their inner wall is thicker            
(B)       Their out wall is thinner            
(C)       During opening of stomata they turgid            
(D)       During closing they turgid

(A)       Catabolic process            
(B)       Occur in all living cells            
(C)       Light energy is required when it occur during day time          
(D)       Chlorophyll is not required

(A)       They release CO₂     
 (B)       They gain their own O
(C)       They have mitochondria            
(D)       Aerobic respiration occurs

(A)       O₂             
(B)       CO₂
(C)       N₂   
(D)       AOT

(A)       1%                
(B)       2%            
(C)       3%      
(D)       4%

(A)       10%               
(B)       16%            
(C)       21%            
(D)       210%

(A)       Spongy            
(B)       Hard              
(C)       Pinkish            
(D)       Soft

(A)       Trachea                     
(B)       Bronchi            
(C)       Bronchioles           
(D)       Alveolar duct

(A)       Contraction of External intercostal muscles            
(B)       Diaphragm become flat           
(C)       Ribs move outward and upward            
(D)       Internal intercostal muscles contract