Leaf Structure: Arrangement and Venation

Q. The part of leaf which connects it to the stem or branch is called____.

1. leaf blade
2. midrib
3. petiole
4. veins

Q. A thick vein present in the middle of the leaf is called ______.

1. lamina
2. petiole
3. sepal
4. midrib

Q. Which of the following plants have parallel venation in their leaves?

1. Banana
2. Wheat
3. Beetroot
4. Carrot

Q.

Name a plant which shows opposite type of phyllotaxy.

Q.

The lines visible on the leaves are known as:

1. Chlorophyll

2. Petiole

3. Axil

4. Veins

Q.

Leaves of which of the following plants are used for thatching roofs of cottages?

1. Sal

2. Coconut

3. Neem

4. Mango

Q.

Swollen petiole is present in:

1. Hydrilla

2. Vallisneria

3. Water hyacinth

4. Pine

Q.

Placentation in Brassicaceae is:

1. Parietal

2. Marginal

3. Axile

4. Basal

Q. Which among the following are different types of leaf margins seen in plants?

1. Dentate
2. Simple
3. Lobed
4. Entire

Q. In which of the following plants, is there no transpiration?

1. Aquatic, submerged plants
2. Plants living in deserts
3. Aquatic plants with floating leaves
4. Plants growing in hilly regions

Q.

Rose plants have fibrous rots.

1. True
2. False

Q. The generic name for rose is ___

Q. What is a phylogenetic tree.??

Q.

In the diagram of types of placentation given below A, B, C and D respectively represent

1. Parietal, axile, free-central and basal

2. Axile, free-central, basal and parietal

3. Basal, axile, parietal and free-central

4. Free-central, partietal, basal and axile

5. Axile, basal, parietal and free-central

Q. Which of these are the different shapes of leaf blades?

1. Whorled
2. Palmate
3. Lanceolate
4. Obovate

Q. Explain tissue culture.

Q. Which of the following is/are functions of chlorophyll?

1. Provide green colour to plants
2. Transport minerals across the plant
3. Provide support and anchorage to plant
4. Performs photosynthesis

Q.

The mustard plant has fibrous roots.

1. True
2. False

Q.

Assertion: In Hibiscus, a single leaf arises at the node of a branch. The consecutive leaves are arranged in an alternate manner.
Reason: It is due to the phyllotaxy feature of plants.

1. Assertion is True, Reason is True; Reason is a correct explanation for Assertion.

2. Assertion is True, Reason is True; Reason is NOT a correct explanation for Assertion.

3. Assertion is True, Reason is False.

4. Assertion is False, Reason is True.

Q.

Any two parts of a leaf which allows transpiration is called

Q.

What is the scientific name of peas?

1. Red Sindhi

2. Sahiwal

3. Jersey

4. None of these

Q. Which of the following is/are correct regarding the stem of a plant?

1. The stem holds the branches, leaves, flowers and fruits.
   
2. The stem transports water and minerals from roots to the upper parts.
   
3. It transports the prepared food from leaves to other parts.
4. None of the above

Q.

Name the various types of arrangements of leaves on a twig. Give two examples of each.

Q.

Answer in one word:

Thick vein in the middle of the lamina.

Q.

The leaf is attached to the stem by the __________.

Q.

What is the eye of potato?

1. Axillary bud

2. Adventitious bud

3. Apical bud

4. Accessory bud

Q.

When two leaves arise at each node, the arrangement is called _________

Q.

What can you infer about the leaf structure from the given image

1. Lobed and simple
2. Obovate and compound

3. True

4. False

Q. Assertion :The alternate type of phyllotaxy is the arrangement of leaves in which a single leaf arises at each node in alternate manner.
Reason: The alternate type of phyllotaxy is seen in China rose and mustard plant.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. The pattern of arrangement of leaves on a stem is called .

1. venation
2. whorls
3. phyllotaxy
4. placentation