Free Forms and Functions of Plants MCQs with Answers
272 Forms and Functions of Plants MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Plant nutrition and transport cover mineral uptake, photosynthesis, xylem movement of water and minerals, and phloem translocation of sugars. Plant growth regulators include auxins, gibberellins, cytokinins, abscisic acid and ethene, whose effects on cell division, elongation, dormancy, fruit ripening and tropic responses should not be confused with mineral nutrition.
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Read the Forms and Functions of Plants notesFree MDCAT chapter notes with key terms272 questions · page 14 of 14
- A. Transportation
- B. Transduction
- C. Translocation
- D. Transformation
Explanation: The correct answer is translocation. This process specifically refers to the movement of organic solutes such as sugars and amino acids…
Correct answer: Translocation- A. Zinc (Zn)
- B. Iron (Fe)
- C. Cobalt (Co)
- D. Manganese (Mn)
Explanation: Zinc (Zn) deficiency is directly linked to delayed wound healing because zinc is integral to the processes of collagen synthesis and cell…
Correct answer: Zinc (Zn)- A. Iron
- B. Chlorine
- C. Copper
- D. Potassium
Explanation: The correct answer is potassium. Potassium is classified as a macromineral, not a micronutrient.
Correct answer: Potassium- A. Xylem
- B. Phloem
- C. Cortex
- D. Epidermis
Explanation: The cambium is a layer of actively dividing cells in plants that contributes to secondary growth by producing new cells.
Correct answer: Phloem- A. 500 mg
- B. 400 mg
- C. 800 mg
- D. 1800 mg
Explanation: Phosphorus is crucial for numerous bodily functions, including the formation of bones and teeth, and it plays a role in how the body uses…
Correct answer: 800 mg266. Macronutrients are:
- A. K-Mg-N-P
- B. Cu-Mg-Mn-S
- C. Mn-S-P-Cu
- D. Mg-Mn-Ca-P
Explanation: The macronutrients are K-Mg-N-P (Students should learn this as it is a fact)
Correct answer: K-Mg-N-P- A. Cu ions
- B. Ca ions
- C. Mg ions
- D. K ions
Explanation: The correct answer is Cu ions. Macronutrients are elements required in large quantities for plant growth.
Correct answer: Cu ions- A. Plastocyonin
- B. Cytochromes
- C. Plastoquinones
- D. All of the above
Explanation: Plastoquinones are molecules that serve as electron carriers in the process of photosynthesis.
Correct answer: All of the above- A. Chlorophyll a
- B. Chlorophyll r
- C. Chlorophyll b
- D. Chlorophyll d
Explanation: Chlorophyll a is a pigment found in the chloroplasts of plant cells. It absorbs light energy from the sun, particularly in the blue and…
Correct answer: Chlorophyll a- A. Industrial fixation
- B. Biological fixation
- C. Atmospheric fixation
- D. All of the above
Explanation: In industrial fixation, nitrogen gas (N2) is converted into a usable form, such as ammonia (NH3), through a process called the Haber-Bosch…
Correct answer: Industrial fixation- A. Buds
- B. Seeds
- C. Root and underground stem
- D. All of the above
Explanation: The term "Sink of assimilate" is used to describe various plant parts like seeds, buds, and underground stems.
Correct answer: All of the above- A. Chlorophyll A
- B. Chlorophyll B
- C. Chlorophyll C
- D. Chlorophyll D
Explanation: The above formula represents the structure of chlorophyll b. Chlorophyll b is a pigment found in plants and algae that plays a key role in…
Correct answer: Chlorophyll B