Leafs

Question 1

Explain the difference between chlorophyll and chloroplast.

Answer 1

• chlorophyll is the pigment that gives leaves the green color.
• Chloroplast is the cell organelle found inside photosynthesis plant tissue.

Question 2

Why are the roots of a plant not green but the leaves are?

Answer 2

The roots never get sunlight, and cannot photosynthesize, and therefore will not contain the pigment chlorophyll.

Question 3

Explain the color change of a plant. (3)

Answer 3

• Chlorophyll is broken down
• Plant moves chlorophyll from leaves
• New chlorophyll is added

Question 4

Two types of sectional views of an object (2)

Answer 4

• longitudinal section [ ~ ]
• Cross-section [ | ]

Question 5

Cuticle definition (2)

Answer 5

Wax layer, prevents water loss

Question 6

Upper epidermis definition (1)

Answer 6

Protects plant cell inside

Question 7

Lower, epidermis definition (1)

Answer 7

Protect plant cell inside

Question 8

Palisade cells definition (1)

Answer 8

Photosynthesis

Question 9

Spongy cells definition (2)

Answer 9

Photosynthesis
Contain inter cellular air spaces

Question 10

Intercellular air spaces definition (1)

Answer 10

Allows gases to move between cells

Question 11

Stomata definition (4)

Answer 11

Allows movement of gases between leaf and atmosphere.

(Oxygen in) (carbon dioxide out) (water vapor in)

Question 12

Vain definition (2)

Answer 12

Transport nutrients, and water