Explain why cereal crops form an important part of many people’s diets.
Alpha amylase is an enzyme made in germinating seeds, where it hydrolyses starch. Fig. 4.1 shows how temperature affects alpha amylase in germinating seeds of sorghum and rice. Name the part of the seed that contains starch.
Alpha amylase is an enzyme made in germinating seeds, where it hydrolyses starch. Fig. 4.1 shows how temperature affects alpha amylase in germinating seeds of sorghum and rice.
Using Fig. 4.1, compare how temperature influences alpha amylase in sorghum and rice.
Referring to bonding types in proteins, suggest how differences in the tertiary structure of alpha amylase in rice and sorghum might account for the activity differences shown in Fig. 4.1.
Sorghum grows poorly at low temperatures. An investigation examined how sorghum responds to low temperatures at different light intensities.
Describe and explain, with reference to Table 4.1, how light intensity affects the rate of carbon dioxide uptake before cooling.
Describe how light intensity affects the survival of sorghum plants during cooling.
Describe how the ability of sorghum plants to survive cooling changes with light intensity.