Knock out the false leaf claims

Exercise and reference answers

Questions

1. Question

   Three of these statements about photosynthesis are false.

   Choices

   1. Explanation

      Oxygen is released as a product, not taken in

      Item

      Oxygen is taken in as a substrate

   2. Item

      Sunlight, carbon dioxide and water go in

      Correct

      Yes

   3. Explanation

      Chlorophyll captures light, so it is machinery not fuel

      Item

      Chlorophyll is used up as a substrate

   4. Explanation

      Only plants, algae and cyanobacteria can photosynthesise

      Item

      Fungi carry out photosynthesis too

2. Question

   Three of these statements about a leaf are false.

   Choices

   1. Explanation

      They sit on the underside, which cuts water loss

      Item

      Stomata sit mostly on the upper side

   2. Explanation

      The chloroplast envelope has an outer and an inner membrane

      Item

      A chloroplast has a single membrane

   3. Item

      Photosynthesis happens in the mesophyll

      Correct

      Yes

   4. Explanation

      The stroma surrounds the grana, outside that membrane

      Item

      The stroma sits inside the thylakoid

Instructions

Three lines in each round are wrong. Tap those three and leave the one that stands.

Explanation