The outer coat of pollen grains is called sporopollenin, which is made of ________
a. cellulose
b. an unknown substance
c. protein
d. glycolipid
b
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Oxygen has an atomic mass of 16 and an atomic number of 8.
A. Oxygen has 16 neutrons. B. Oxygen has 8 electrons. C. Oxygen can form two bonds with other atoms. D. Oxygen has 16 neutrons and 8 electrons. E. Oxygen has 8 electrons and can form two bonds with other atoms.
Mismatch of either the Rh antigen or the AB antigen results in lysis of red blood cells by complement
Indicate whether this statement is true or false.
f you consider the combined processes of photosynthesis and cellular respiration, the electrons found in H2O at the beginning of the light reactions end up attaching to ________ during respiration.
-O2 to make new H2O -NADPH to make new glucose -pyruvate to make ethanol -electron transport carriers to make O2 -none of the above
A trip to space finds a planet rich with green light. Scientists hope to introduce a photosynthetic organism to this planet. What sort of organism should they choose?
What will be an ideal response?