Podcast
Questions and Answers
What happens to the outer walls of guard cells during gas exchange in leaves?
What happens to the outer walls of guard cells during gas exchange in leaves?
- They form a crescent shape
- They shrink in
- They bulge out (correct)
- They become flat
What is the function of lenticels in the gas exchange of stems?
What is the function of lenticels in the gas exchange of stems?
- They regulate temperature
- They help in photosynthesis
- They store excess water
- They provide a pathway for direct gas exchange between internal tissue and the atmosphere (correct)
In plants, what causes guard cells to push against the cell wall?
In plants, what causes guard cells to push against the cell wall?
- Low turgor pressure (correct)
- High turgor pressure
- Strong wind
- Lack of water
Which biological function is NOT facilitated by transport/circulation systems in organisms?
Which biological function is NOT facilitated by transport/circulation systems in organisms?
What is the main function of main circulatory organs in plants?
What is the main function of main circulatory organs in plants?
In animals, which structure serves as the main organ for gas exchange?
In animals, which structure serves as the main organ for gas exchange?
What is the function of lenticels in plants?
What is the function of lenticels in plants?
What type of vessels carry O2 rich blood from the heart to the whole body in animals?
What type of vessels carry O2 rich blood from the heart to the whole body in animals?
What is diffused through air spaces to be transported to the phloem for plants?
What is diffused through air spaces to be transported to the phloem for plants?
The turgor pressure develops within guard cells primarily due to what reason?
The turgor pressure develops within guard cells primarily due to what reason?
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