Tv1a - 7 Jan - Recap, Twigs and Insect galls

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Today:

1. Quiz
2. Twigs (2.7)
3. Insect galls (extension 3) 

2.2

What is the name of part 2?

1. Tap root
2. Lateral root
3. Root hair

What is the name of part 3?

1. Tap root
2. Lateral root
3. Root hair

What is not a function of the roots?

1. Absorbing water
2. Transporting nutrients
3. Anchoring the plant
4. Storing food reserves

2.3

What is the name of part 1?

1. Terminal bud
2. Axil
3. Axillary bud
4. Node

What is the name of part 3?

1. Terminal bud
2. Axil
3. Axillary bud
4. Node

What is the name of part 4?

1. Terminal bud
2. Axil
3. Axillary bud
4. Node

What kind of stem is this?

1. Herbaceous
2. Woody

What is the annual ring?

1. Every single ring is an annual ring.
2. A light ring is an annual ring.
3. A dark ring is an annual ring.
4. A light ring plus a dark ring are an annual ring.

What are the functions of the stem?

1. Transporting water and making sugars.
2. Transporting water and nutrients.
3. Absorbing water and nutrients.
4. Transporting nutrients and absorbing water.

2.4

What is the name of part 2?

1. Lateral vein
2. Main vein
3. Lamina
4. Leaf blade

What is the name of part 3?

1. Lateral vein
2. Main vein
3. Lamina
4. Leaf blade

2.8

What kind of leaf shape is this?

1. Simple leaf
2. Compound leaf - Pinnately
3. Compound leaf - Palmately

What kind of leaf shape is this?

1. Simple leaf
2. Compound leaf - Pinnately
3. Compound leaf - Palmately

What kind of leaf shape is this?

1. Simple leaf
2. Compound leaf - Pinnately
3. Compound leaf - Palmately

What kind of venation is this?

1. Pinnate veins
2. Palmate veins
3. Parallel veins

What kind of venation is this?

1. Pinnate veins
2. Palmate veins
3. Parallel veins

Extension 2

What does a plant need to do photosynthesis?

1. Carbon dioxide, water and oxygen
2. Oxygen, sugar and sunlight
3. Sugar, carbon dioxide and water
4. Carbon dioxide, water and sunlight

What does a plant make with photosynthesis?

1. Carbon dioxide and sugar
2. Oxygen and water
3. Oxygen and sugar
4. Sugar and water

2.7 Twigs

Dormant bud and ring scar

• Dormant bud does not grow next year 
• Dormant bud only grows when other buds are damaged
• Bud scales are around terminal buds to protect them from damage
• When terminal buds grow, bud scales fall off leaving the ring scar

Leaf scar

• In autumn
•  abscission layer forms between the leaf stalk and the stem
• The leaf falls of
• Layer of cork forms the leaf scar

Extension 3 - Insect galls

Homework

• 2.7
• Exercise 21 
• Extension 3 (2.11 in the online method)
• Exercise 1

• Make sure you have done all the test yourselves