Contents

Stomata open to allow …………the plant.
a) sugar into                
b) sugar out of
c) carbon dioxide into
d) light into


Products of photosynthesis are:
a) carbon dioxide and water
b) hydrogen and water
c) glucose and carbon dioxide
d) glucose and oxygen


How does chlorophyll help a plant?
a) It absorbs light energy in photosynthesis.
b) It moves water and minerals through the plant.
c) It moves sugar and water through the plant.
d) It absorbs water


Which is correct for leaves to make food?
a) flat surface             
b) presence of large number of stomata
c) thick layer of mesophyll cells
d) all of the above


Respiration takes place in………….of cells.
a) chloroplasts                        
b) mitochondria
c) nucleus                   
d) cell membrane


In all living things, energy producing  process is called……….
a) photosynthesis       
b) respiration
c) both a and b            
d) none of these