Kranz Anatomy

Q. In $C_4$-plants, Calvin cycle enzymes are present in

1. Mesophyll chloroplasts
2. Bundle sheath chloroplasts
3. Guard cell chloroplasts
4. Epidermal chloroplasts.

Q. In the leaves of $C_4$ plants, malic acid formation during $C{O}_2$ fixation occurs in the cells of:

1. Epidermis
2. Mesophyll
3. Bundle sheath
4. Phloem

Q.

Are aquatic plants C₃ or C₄?

Q. Which among the following is a $C_4$ plant?

1. Potato
2. Pea
3. Maize
4. Datura.

Q. The flagellated asexual spores of algae are called

1. zygospores
2. aplanospores
3. zoospores
4. oospores

Q. Zoospores are formed due to

1. fragmentation
2. budding
3. meiosis
4. mitosis

Q. Kranz anatomy is seen in which of the following plants?

1. Rice
2. Banyan
3. Potato
4. Sugarcane

Q. In Hatch and Slack pathway

1. Chloroplasts are of same type
2. Kranz anatomy occurs where mesophyll have small chloroplasts whereas bundle sheath have granal chloroplasts
3. Kranz anatomy occurs where mesophyll have small chloroplasts whereas bundle sheath have larger, agranal chloroplasts
4. Kranz anatomy where mesophyll cells are diffused

Q. In C₄ plants, the carbon dioxide fixation occurs in

1. Guard cells
2. Spongy cells
3. Palisade cells
4. Bundle sheath cells

Q. Which of the following classes produce motile or zoospores?

1. Phaeophyceae
2. Chlorophyceae
3. Rhodophyceae
4. Both a and b

Q. Give comparison between the following:
(a) C${}_3$ and C${}_4$ pathways
(b) Cyclic and non-cyclic photophosphorylation
(c) Anatomy of leaf in C${}_3$ and C${}_4$ plants.

Q. Kranz anatomy is found in the leaves of

1. wheat
2. mustard
3. sugarcane
4. potato

Q. The net requirement of assimilatory power for the formation of 6 hexose molecules in maize plant is:

1. 72 ATP, 48 NADPH
2. 90 ATP, 60 NADPH
3. 108 ATP, 72 NADPH
4. 180 ATP, 72 NADPH

Q. Which of the following statements is true regarding reproduction in Phaeophyceae?

1. Asexual reproduction in most brown algae is by non-flagellated zoospores.
2. Zoospores are pear-shaped and have two unequal laterally attached flagella.
3. Sexual reproduction may be isogamous, anisogamous or oogamous.
4. Vegetative reproduction takes place by fragmentation.

Q. Choose the false statement.

1. Spores of class Phaeophyceae have laterally attached flagella
2. Spores of Phaeophyceae - are round in shape
3. Spores of class Rhodophyceae do not have flagella
4. Spores of class Chlorophyceae have many flagella

Q. Choose the wrong statement.

1. Fragmentation is a type of vegetative reproduction.
2. During fragmentation the plant thallus breaks into many fragments and each fragment grows into a new offspring.
3. Generally filamentous algae undergo fragmentation.
4. Spore formation is a type of vegetative reproduction.

Q. Zoospores are formed inside special structures called zoosporangium.

1. True
2. False

Q. In $C_4$ plants, the bundle sheath cells:

1. Have thin walls to facilitate gaseous exchange
2. Have large intercellular spaces
3. Are rich in PEP carboxylase
4. Have a high density of chloroplasts

Q. A spore is capable of developing into a new plant.

1. False
2. True

Q. An algal bloom is a rapid increase or accumulation in the population of algae

1. True
2. False

Q. Choose the incorrect pair

1. Gemma cups - Marchantia
2. Unicellular organism - Chlorella
3. Biflagellate zoospores - Brown algae
4. Uniflagellate gametes - Polysiphonia

Q. Kranz anatomy is found in

1. Stems of $C_4$ plants
2. Stems of $C_3$ plants
3. Leaves of $C_4$ plants
4. Leaves of $C_3$ plants

Q. Kranz anatomy is found in plants that carry out pathway.

1. C3
2. C4
3. CAM
4. photorespiration