Question

essential questions for seed germination: 1. what factors affect seed germination? 2. is light absolutely essential for seed germination? why or why not. 3. does the amount of water affect the rate of seed germination? if so, how? 4. what type of gases are taken in and released back into the environment or atmosphere? 5. what is the classroom temperature on the average when you are in the classroom? 6. what is the best temperature in the classroom for seeds to germinate? 7. does the type of seed matter? why or why not. 8. as humans, we need oxygen. what about seeds? do seeds need oxygen too? explain. please interpret the pie chart below and answer the questions 9 and 10.

Explanation:

1. Factors affecting seed germination include water, oxygen, temperature, and sometimes light. Adequate water softens the seed - coat and activates enzymes. Oxygen is needed for respiration. Temperature affects the rate of metabolic processes.
2. Light is not always essential. Some seeds are photoblastic (require light or dark), while others can germinate regardless.
3. The amount of water affects germination rate. Too little water prevents imbibition; too much can cause oxygen - deficiency.
4. Seeds take in oxygen and release carbon - dioxide during respiration.
5. Classroom temperature can vary but is typically around 20 - 25°C on average.
6. The best temperature for seed germination in a classroom is usually around 20 - 25°C as it is optimal for most common seeds' metabolic processes.
7. The type of seed matters as different seeds have different requirements for germination based on their dormancy mechanisms and physiological needs.
8. Seeds also need oxygen for aerobic respiration to release energy for growth processes.

Since no pie - chart is provided, questions 9 and 10 cannot be answered.

Answer:

1. Water, oxygen, temperature, light (in some cases).
2. Not always. Some seeds are photoblastic, others are not.
3. Yes. Too little inhibits imbibition, too much causes oxygen - deficiency.
4. Take in oxygen, release carbon - dioxide.
5. Around 20 - 25°C on average.
6. Around 20 - 25°C.
7. Yes, due to different dormancy and physiological needs.
8. Yes, for aerobic respiration.