herhaal 6.1-6.6 Plant reproduction

• Biologie
• Middelbare school
• havo
• Leerjaar 1

Are you ready?

rehearsal 6.1 -6.6

6.1-6.6 Plant reproduction

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Cytoplasm

Chloroplast

Cell wall

What substances does the plant absorb through the root hairs?

1. water
2. water and minerals
3. minerals

Which plant part absorbs carbon dioxide (CO2) from the air?

1. Stem
2. Root
3. Flower
4. Stomata

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.

The oldest annual rings of a tree are located in the center of a trunk

1. true
2. not true

What is NOT a function
of roots?

1. store food reserves
2. take up water and minerals
3. anchor the plant in the ground
4. making glucose

What is the function of the root hairs?

1. Anchor the plant in the soil
2. Holds the plant upright
3. Taking up water

Which of the following is not a function of stems?

1. Store extra food
2. Keep the plant upright
3. Let carbon dioxide enter the plant
4. Transport water & food

What does a bee eat from a flower?

1. Nectar
2. Pollen
3. Fruits
4. Seeds

Plant parts

2. Sepals: green leaves that protect the flower from cold, dehydration, and damage when the flower is still covered in its bud.

3. Nectary: glands, producing nectar. 
Nectar = sweet liquid.

Plant parts

Petals = the coloured leaves for attracting insects.

Pistil =stigma= used for the reproduction.

Stamens = also for the reproduction.

reproduction

Stamen

• Anter = produces a large amount of grains/pollen (male gametes). 
• Filament 

Pistil

• Stigma
• Style 
• Ovary = contaiins ovules that each contain an egg cell (female gametes). 

How does pollen reach te pistil? 

Pollination = transfer of pollen from the stamens to the pistil

• Cross- pollination = when the pollen of one flower is transferred to the pistil of the flower of another plant

• Self-pollination = when the pollen is transferred to the flowers of the same plant

Cross-pollination, self-pollination or no pollination?

Insect-pollinated flowers

Outstanding and fragrant flowers.

Wind-pollinated flowers

Less striking small green flowers withouw scent. Stamens and stigma hang out far from the flower.

What is cross pollination?

1. Pollination in the same flower
2. When insects spread pollen
3. Pollen go brrr
4. Pollination between different flowers

What part contains nutrients for the plant embryo?

1. The pollen grain
2. The flower stalk
3. The pulp
4. The seed

Is this an insect-pollinated flower?

1. Yes
2. No

Is this an insect-pollinated flower?

1. Yes
2. No

Is this an insect-pollinated flower or a wind-pollinated flower?

1. wind-pollinated flower
2. insect-pollinated flower
3. Both

This picture shows a pomegranate. How many pollen tubes grew in its flower?

1. 1
2. 2
3. 3
4. Too many to count

Let's discuss the lesson!

Use your book.

 Look for 1 picture we did not discuss