Pollen pistil interaction

 

UMBILICAL CORD VS PLACENTA

 

Tips for NEET aspirants..2023-24

 If you're preparing for the NEET (National Eligibility cum Entrance Test) in India, here are some tips that can help you in your preparation:

Understand the Exam Pattern: Familiarize yourself with the NEET exam pattern, including the number of questions, marking scheme, and time duration. This will help you plan your preparation strategy accordingly.

Create a Study Plan: Develop a comprehensive study plan that covers all the subjects and topics included in the NEET syllabus. Allocate specific time slots for each subject, and ensure that you revise regularly.

Know the Syllabus: Thoroughly understand the NEET syllabus and identify the important topics that carry more weightage. Focus on these topics while allocating your study time.

Refer to Standard Study Materials: Use the recommended textbooks(NCERT AND ONE AUTHENTIC BOOK FOR PCB) and study materials that are widely used by NEET aspirants. This will ensure that you have access to accurate and relevant content for your preparation.

Practice Regularly: Practice solving previous years' question papers and sample papers. It will help you understand the exam pattern, improve your time management skills, and identify your weak areas that need more attention.

Take Mock Tests: It is most essential part of your preparation to participate in a mick test series..Take regular mock tests to assess your preparation level. Analyze your performance after each test and work on improving your speed and accuracy.

Seek Clarification: If you come across any doubts or concepts that you find difficult to understand, don't hesitate to seek help. Consult your teachers or participate in online forums where you can interact with experts and clarify your queries.

Time Management: Develop effective time management skills while solving questions during practice and in the actual exam. Learn to allocate the appropriate time to different sections and questions based on their difficulty level.

Maintain a Healthy Lifestyle: Take care of your physical and mental well-being. Get enough sleep, eat nutritious meals, and exercise regularly. Avoid excessive stress and practice relaxation techniques like meditation or deep breathing to stay calm during the preparation period.

Stay Motivated and Positive: Stay motivated throughout your NEET preparation journey. Remind yourself of your goals, celebrate small achievements, and maintain a positive mindset. Surround yourself with supportive peers and family members who can encourage you during challenging times.

Remember, consistent hard work, dedication, and a systematic approach are key to cracking NEET. Good luck with your preparation!

TEST NO 1 /CLASS XII/BIOLOGY/NCERT

https://forms.gle/cetvp7CsTrhVnhCv9 

DEAR STUDENTS ABOVE GIVEN LINK IS THE BIOLOGY TEST OF CHAPTER 1 AND 2..

BEST OF LUCK

RAJEEV GANGWAR

MORPHOLOGY AND ANATOMY

TEST THIRD

Question 1

Casparian strips are present in the _____ of the root.

A	pericycle
B	cortex
C	epiblema
D	endodermis

Question 2

In an annual ring, the light coloured part is known as

A	Heartwood
B	Late wood
C	Early wood
D	Sapwood

Question 3

The inner, darker and harder portion of secondary xylem that can not conduct water, in an older dicot stem, is called

A	Bast
B	Alburnum
C	Duramen
D	Wood

Question 4

Seed coat is not thin, membranous in [NEET 2013]

A	Groundnut
B	Coconut
C	Maize
D	Gram

Question 5

Lenticels are involved in [NEET 2013]

A	Transpiration
B	Gaseous exchange
C	Food transport
D	Photosynthesis

Question 6

Age of a tree can be estimated by [NEET 2013]

A	Its height and girth
B	Biomass
C	Number of annual rings
D	Diameter of its heartwood

Question 7

For a critical study of secondary growth in plants, which one of the following pairs is suitable?

A	Wheat and maiden hair fern
B	Sugarcane and sunflower
C	Teak and pine
D	Deodar and fern

Question 8

Heartwood differs from sapwood in

A	Absence of vessels and parenchyma
B	Presence of rays and fibres
C	Being susceptible to pests and pathogens
D	Having dead and non-conducting elements

Question 9

Interfascicular cambium is a

A	Type of Protoderm
B	Primordial meristem
C	Primary meristematic tissue
D	Secondary meristematic tissue

Question 10

Identify the plant parts whose transverse sections show a clear and prominent pith.

A	Dicot stem and monocot stem
B	Dicot stem and dicot root
C	Dicot root and monocot root
D	Dicot stem and monocot root

Question 11

In a dicotyledonous stem, the sequence of tissues from the outside to the inside is:

A	Phellem-phloem-endodermis-pericycle
B	Phellem-pericycle-endodermis-phloem
C	Pericycle-phellem-endodermis-phloem
D	Phellem-endodermis-pericycle-phloem

Question 12

As secondary growth proceeds, in a dicot stem, the thickness of

A	sapwood increases
B	heartwood increases
C	both sapwood and heartwood increases
D	both sapwood and heartwood remains the same

Question 13

Arrange the following plants in ascending order based on the number of xylem strands in their roots :

(I) Trapa

(II) Pisum

(III) Castanea

(IV) Nicotiana

A	II, IV, III, I
B	III, IV, II, I
C	IV, III, I, II
D	I, IV, II, III

Question 14

Read the following lists and select the correct option.

List – I		List – II
A. Extrafloral Nectaries		I. Achras
B. Schizogenous cavities		II. Tropaeolum
C. Laticiferous ducts		III. Passiflora
D. Hydathodes		IV. Eucalyptus
		V. Pinus
A	A - III, B - I, C - II, D - IV
B	A - II, B - I, C - III, D - IV
C	A - III, B - V, C - I, D - II
D	A - V, B - II, C - I, D - III

Question 15

Which one of the following is the correct sequence of tissues present in dicot stem during secondary growth?

A	Primary cortex, secondary cortex, phellogen, cork
B	Cork, primary cortex, secondary cortex, phellogen
C	Phellogen, cork, primary cortex, secondary cortex
D	Secondary cortex, cork, phellogen primary cortex

 Question 16   Intercalary meristem is a derivative of

A	Lateral meristem
B	Secondary meristem
C	Primary meristem
D	Promeristem

Question17

Quiescent centre is found in plants at :

A	Shoot tip
B	Cambium
C	Root tip
D	Leaf tip

Question 18

The monocotyledonous seed consists of one large and shield shaped cotyledon known as

A	Coleoptile                                                  C     Aleurone layer
B	Scutellum                                                   D Coleorhiza