Photosynthesis: The Plant's Kitchen

1. 1.

   A plant's kitchen is inside its cells. Which part of the cell is where photosynthesis happens?

   AchloroplastsBmitochondriaCthe nucleusDthe cell wall
2. 2.

   The recipe card shows the word equation for photosynthesis. Which product is missing?

   

   AnitrogenBstarchCoxygenDchlorophyll
3. 3.

   Which two ingredients does the plant's kitchen take in to make its food?

   Aoxygen and glucoseBcarbon dioxide and waterCwater and nitrogenDglucose and starch
4. 4.

   Every kitchen needs energy to cook. Where does the energy for photosynthesis come from?

   Aheat from the soilBthe windCwater pressure in the stemDsunlight
5. 5.

   Which green substance in the leaf absorbs the light?

   AcaroteneBchlorophyllCglucoseDcellulose
6. 6.

   Why are most leaves thin and flat?

   Ato catch as much light as possibleBso they can store water for the winterCto stop insects from landing on themDto hold the plant up when it is windy
7. 7.

   A plant is left in a dark cupboard for a week. What happens to it?

   AIt makes glucose faster than beforeBIt stops making glucose and its leaves turn paleCIt grows twice as many leaves to search for the lightDIt takes in more oxygen through its roots
8. 8.

   Gases get in and out of the leaf through tiny holes. What are they called?

   ArootsBpetalsCstomataDthe stem

Photosynthesis: The Plant's Kitchen — Answer key

1. 1.A — chloroplasts
   2.C — oxygen
2. 3.B — carbon dioxide and water
   4.D — sunlight
3. 5.B — chlorophyll
   6.A — to catch as much light as possible
4. 7.B — It stops making glucose and its leaves turn pale
   8.C — stomata