A prothallus is

1. A structure in pteridophytes formed before the thallus develops
2. A sporophytic free living structure formed in pteridophytes
3. A gametophyte free living structure formed in pteridophytes
4. A primitive structure formed after fertilization in pteriodophytes

Subtopic:  Pteridophytes |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is

1. Monocots 2. Dicots
3. Pteridophytes 4. Gymnosperms
Subtopic:  Gymnosperms |
 74%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The embryo sac of an Angiosperm is made up of
1. 8 cells
2. 7 cells and 8 nuclei
3. 8 nuclei
4. 7 cells and 7 nuclei

Subtopic:  Pistil: Ovule |
 94%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

If the diploid number of a flowering plant is 36. What would be the chromosome number in its endosperm
1. 36
2. 18
3. 54
4. 72

Subtopic:  General Account of Angiosperms (OLD NCERT) |
 77%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Protonema is
1. Haploid and is found in mosses
2. Diploid and is found is liverworts
3. Diploid and is found in pteridophytes
4. Haploid and is found in pteridophytes

Subtopic:  Bryophytes |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The giant Redwood tree (Sequoia sempervirens) is a/an

1. Angiosperm 2. Free fern
3. Pteridophyte 4. Gymnosperm
Subtopic:  Gymnosperms |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

The dominant generation in a fern is the:
1. gametophyte
2. haploid
3. sporophyte
4. haplont

Subtopic:  Algae | Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae | Bryophytes | Pteridophytes |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The leaf-like photosynthetic organ in brown algae is called as:
1. Holdfast
2. Stipe
3. Frond
4. Rhizoid

Subtopic:  Pheophyceae: Brown Algae |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

What is not true for mosses?

1. Sporophyte is less elaborate than liverworts
2. Protonema stage develops directly from a spore
3. Leafy stage develops from a secondary protonema as a lateral bud
4. They are attached to soil through multicellular and branched rhizoids
Subtopic:  Bryophytes |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Antheridium of bryophytes produce _______ antherozoids.

1. Non-motile 2. Uni-flagellate
3. Biflagellate 4. Ciliate
Subtopic:  Bryophytes |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch