Tag: transport in the xylem of plants

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Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants

Enzyme catalysed reactions can be inhibited by

  1. $Mg^{2+}$
  2. $Cu^{2+}$
  3. $Hg^{2+}$
  4. $Zn^{2+}$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Heavy metals like mercury (Hg2+) act as non-competitive or irreversible inhibitors by binding to the sulfhydryl groups of enzymes, thereby denaturing them or blocking their active sites.

Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants

Plants obtain mineral nutrients from.

  1. Rocks

  2. Breakdown products of rocks

  3. Soil

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plants obtain minerals from the soil, which are derived from the weathering and breakdown of rocks. Therefore, all these sources contribute to the mineral content available to plants.

Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants

Match List I(Element) with List II(Process) and select the correct answer.

List I List II
a. Molybdenum $1$. Photosynthesis
b. Manganese $2$. Respiration
c. sulphur $3$. Nitrate reduction
d. Calcium $4$. Cell division
$5$. Protein synthesis
  1. A-$5$, B-$2$, C-$3$, D-$1$
  2. A-$3$, B-$1$, C-$5$, D-$4$
  3. A-$2$, B-$1$, C-$4$, D-$5$
  4. A-$3$, B-$2$, C-$4$, D-$5$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biology mineral nutrition in plants nutrients and nutrition essential and non-essential mineral elements transport in the xylem of plants

Mushroom is referred to as a vegetable meat because it _________________.

  1. Contains proteins

  2. Contains vitamins and carbohydrates

  3. Contains folic acid and amino acids

  4. Is rich in proteins and minerals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mushrooms are often called 'vegetable meat' because they contain a significant amount of protein, making them a good plant-based protein source.