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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-OB-LE-0011 markL1 FoundationCalculatorLeaf structure

Most photosynthesis takes place in the

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0021 markL1 FoundationCalculatorLeaf structure

Stomata are opened and closed by

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0121 markL1 FoundationCalculatorLeaf structure

The tissue that carries sugars out of the leaf is

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0031 markL2 StandardCalculatorLeaf structure

The waxy cuticle

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0041 markL2 StandardCalculatorLeaf structure

Air spaces in the spongy mesophyll

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0051 markL2 StandardCalculatorMineral ions

Magnesium ions are needed to make

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0061 markL2 StandardCalculatorMineral ions

A plant lacking nitrate ions shows

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0071 markL2 StandardCalculatorLeaf structure

Xylem in the leaf vein brings

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0081 markL2 StandardCalculatorLeaf structure

Leaves are thin so that

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0091 markL2 StandardCalculatorLeaf structure

Most stomata are on the lower surface of a leaf to

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0101 markL2 StandardCalculatorLeaf structure

The upper epidermis is transparent so that

Salam Academy Original Practice · Proposed mark scheme

SA-OB-LE-0111 markL3 ExamCalculatorLeaf structure

On a hot, dry day stomata close. The effect on photosynthesis is

Salam Academy Original Practice · Proposed mark scheme