One of the characteristics of lenticels in woody plants is that they:
Correct answer: C. Are permanent pores that always remain open
- A. Have cells containing chloroplast
- B. Are located in the stem epidermis
- C. Are permanent pores that always remain open
- D. Are openings in the stem of shrubs that are regulated
Explanation
Unlike stomata, which open and close to regulate gas exchange, lenticels are permanent openings in the bark of woody plants.So option C is correct.
Last updated
About Plant Nutrition and Transport
Plants require macronutrients and micronutrients for growth, and mineral deficiencies produce recognizable symptoms. Transport involves water and minerals through xylem by transpiration pull, cohesion and adhesion, while phloem translocates sugars from sources to sinks. Root pressure and transpiration are distinct mechanisms.
Practise Forms and Functions of Plants
272 free Forms and Functions of Plants MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
Consider the given molecules.I.NADPHII. ATPIII. CO2In the process of photosynthesis, these molecules are used as inputs in the:
Insectivorous plants are autotrophs which grow in the soil that is deficient in
In plants, the option that shows the range of environmental temperature and CO2 to O2 ratio which favours photorespiration is:
The pathway through which water moves from root hair cells to the xylem in plants are/is:I. apoplastII. symplastIII. vacuolar
Given is the sequence of events that lead to the opening of stomata in plants during day light:Accumulated of substances X and Y in the guard cell→increase solute concentration in the guard cells→water potential of guard cells→endosmosis of water in the guard cells→ increased turgidity of the guard cells→stomata opens.The letter X, Y and Z represent: