Leaf Layers & Photosynthesis Quiz
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Questions and Answers

What is the function of the cuticle layer in a leaf?

The cuticle layer protects the surface of the leaf, prevents water loss, and controls the entrance and exit of gases.

Name two important cell and tissue types found in leaves that are needed for photosynthesis.

The palisade layer and the spongy layer are important cell and tissue types in leaves needed for photosynthesis.

Where are chloroplasts, the organelles responsible for photosynthesis, mainly found in plants?

Chloroplasts are mainly found in the leaves of photosynthetic plants.

When do guard cells open the stomata in response to sunlight?

<p>When there is abundant sunlight.</p> Signup and view all the answers

Why do guard cells need to close the stomata?

<p>To prevent excess water loss.</p> Signup and view all the answers

What environmental conditions cause the guard cells to close the stomata?

<p>High temperature and low humidity.</p> Signup and view all the answers

What is the purpose of closing the stomata?

<p>To control the amount of water lost via the stomata.</p> Signup and view all the answers

Describe the function of the upper epidermis in a leaf.

<p>The upper epidermis of the leaf enables sunlight to pass through and initiate photosynthesis in the underlying cells. It also helps to prevent excessive water loss, regulate carbon dioxide and oxygen absorption and release.</p> Signup and view all the answers

What is the primary function of the palisade layer?

<p>The primary function of the palisade layer is to conduct cellular respiration and carry out photosynthesis. It absorbs sunlight and converts carbon dioxide into cellular energy.</p> Signup and view all the answers

What is the role of the spongy layer in a leaf?

<p>The spongy layer facilitates the diffusion of nutrients and gases such as carbon dioxide, oxygen, and water through the stomata. It also stores products of photosynthesis and contains vascular bundles responsible for transporting nutrients throughout the plant.</p> Signup and view all the answers

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