Casparian strips are present in the _____________ of the root.
- A. cortex
- B. pith
- C. pericycle
- D. endodermisCorrect
Explanation. Casparian strips are band-like thickenings of suberin present in the endodermis of the root.
Plant Anatomy and Plant Physiology Book Back One Mark Questions with Answers & Explanations (10th Standard Science)
Every Book Back multiple-choice question from Plant Anatomy and Plant Physiology (10th Standard Science, Samacheer Kalvi) — each with the correct option highlighted and a clear, worked explanation. Free to read in English and Tamil.
The endarch condition is the characteristic feature of
- A. root
- B. stemCorrect
- C. leaves
- D. flower
Explanation. In stems, protoxylem lies towards the center and metaxylem towards the periphery, which is called the endarch condition.
The xylem and phloem arranged side by side on same radius is called _________
- A. radial
- B. amphivasal
- C. conjointCorrect
- D. None of these
Explanation. When xylem and phloem lie on the same radius within the vascular bundle, it is described as conjoint.
Which is formed during anaerobic respiration
- A. Carbohydrate
- B. Ethyl alcoholCorrect
- C. Acetyl CoA
- D. Pyruvate
Explanation. Anaerobic respiration oxidizes glucose incompletely to produce ethyl alcohol and carbon dioxide.
Kreb's cycle takes place in
- A. chloroplast
- B. mitochondrial matrixCorrect
- C. stomata
- D. inner mitochondrial membrane
Explanation. Kreb's cycle occurs within the mitochondrial matrix where the necessary enzymes are located.
Oxygen is produced at what point during photosynthesis?
- A. when ATP is converted to ADP
- B. when CO2 is fixed
- C. when H2O is splittedCorrect
- D. All of these
Explanation. Photolysis or splitting of water molecules during the light-dependent reaction releases oxygen.
More for this chapter
Additional MCQs15 extra MCQs · solved
Practice TestInteractive · instant score
Book Back TestTest yourself on the textbook set
Additional MCQ TestTest yourself on the extra set
Study NotesConcepts & methods
Formula SheetAll key formulas
About these Plant Anatomy and Plant Physiology questions
These are the Book Back multiple-choice questions for Plant Anatomy and Plant Physiology from the Tamil Nadu State Board (Samacheer Kalvi) 10th Standard Science syllabus. Each question shows the correct option and an original, step-by-step explanation so you understand the method, not just the answer. Use the answer key above to jump to any question, then take the practice test to check yourself under exam-like conditions.
Frequently asked questions
How many MCQs are there in Plant Anatomy and Plant Physiology?
This chapter has 6 book-back multiple-choice questions, each with the correct answer and a step-by-step explanation.
Are these 10th Standard Science MCQs free to practise online?
Yes. Every question, answer and explanation here is free, and you can also take them as a timed practice test.
Where can I find the Plant Anatomy and Plant Physiology book-back answers?
The correct option for each question is highlighted on this page with a worked explanation, plus a quick answer-key summary at the top.
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