BiologyQ101–106 of 193 questions
Page 3 of 3 · English
101
BiologyMediumMCQNEET · 2015
In which of the following are the flowers unisexual?
A
Onion
B
Pea
C
Cucumber
D
China rose
Solution
(C) flower is said to be unisexual if it contains either only stamens (male reproductive part) or only carpels (female reproductive part).
Among the given options, $Cucumber$ (Cucumis sativus) produces unisexual flowers, where individual flowers are either staminate or pistillate.
Onion, Pea, and China rose possess bisexual (hermaphrodite) flowers, which contain both stamens and carpels in the same flower.
Among the given options, $Cucumber$ (Cucumis sativus) produces unisexual flowers, where individual flowers are either staminate or pistillate.
Onion, Pea, and China rose possess bisexual (hermaphrodite) flowers, which contain both stamens and carpels in the same flower.
0 likesView Solution
102
BiologyMediumMCQNEET · 2015
Read the components $a$ to $d$ given in the note and identify the correct sequence of components from the outside to the inside of a mature stem:
$(a)$ Secondary cortex
$(b)$ Wood (Secondary xylem)
$(c)$ Secondary phloem
$(d)$ Phellem (Cork)
$(a)$ Secondary cortex
$(b)$ Wood (Secondary xylem)
$(c)$ Secondary phloem
$(d)$ Phellem (Cork)
A
$(d), (a), (c), (b)$
B
$(c), (d), (b), (a)$
C
$(a), (b), (d), (c)$
D
$(d), (c), (a), (b)$
Solution
(A) In a mature dicot stem undergoing secondary growth, the arrangement of tissues from the periphery (outside) to the center (inside) is as follows:
$1$. Phellem (Cork) - The outermost protective layer formed by the cork cambium.
$2$. Secondary cortex (Phelloderm) - Formed by the cork cambium towards the inside.
$3$. Secondary phloem - Formed by the vascular cambium towards the outside.
$4$. Wood (Secondary xylem) - Formed by the vascular cambium towards the inside.
Therefore, the correct sequence from outside to inside is: Phellem $(d) \rightarrow$ Secondary cortex $(a) \rightarrow$ Secondary phloem $(c) \rightarrow$ Wood $(b)$.
Thus, the correct order is $(d), (a), (c), (b)$.
$1$. Phellem (Cork) - The outermost protective layer formed by the cork cambium.
$2$. Secondary cortex (Phelloderm) - Formed by the cork cambium towards the inside.
$3$. Secondary phloem - Formed by the vascular cambium towards the outside.
$4$. Wood (Secondary xylem) - Formed by the vascular cambium towards the inside.
Therefore, the correct sequence from outside to inside is: Phellem $(d) \rightarrow$ Secondary cortex $(a) \rightarrow$ Secondary phloem $(c) \rightarrow$ Wood $(b)$.
Thus, the correct order is $(d), (a), (c), (b)$.
0 likesView Solution
103
BiologyEasyMCQNEET · 2015
$A$ protoplast is a cell that is:
A
Without a plasma membrane
B
Without a nucleus
C
Capable of division
D
Without a cell wall
Solution
(D) protoplast is defined as a plant,bacterial,or fungal cell whose cell wall has been removed,either mechanically or enzymatically. It consists of the plasma membrane and the entire contents of the cell (protoplasm) enclosed within it. Therefore,a protoplast is a cell without a cell wall.
0 likesView Solution
104
BiologyMediumMCQNEET · 2015
What is the site of Balbiani rings?
A
$RNA$ and protein synthesis
B
Lipid synthesis
C
Nucleotide synthesis
D
Polysaccharide synthesis
Solution
(A) Balbiani rings are large puffs found on polytene chromosomes.
These structures are sites of intense gene transcription,where $DNA$ is actively transcribed into $RNA$.
Consequently,they are the primary sites for $RNA$ and protein synthesis within the cell nucleus.
These structures are sites of intense gene transcription,where $DNA$ is actively transcribed into $RNA$.
Consequently,they are the primary sites for $RNA$ and protein synthesis within the cell nucleus.
0 likesView Solution
105
BiologyMediumMCQNEET · 2015
In a grain of wheat,the embryo has one large shield-shaped cotyledon. What is it called?
A
Epiblast
B
Scutellum
C
Coleorhiza
D
Coleoptile
Solution
(B) In monocotyledonous seeds like wheat,the embryo consists of a single cotyledon.
This large,shield-shaped cotyledon is known as the $Scutellum$.
It is situated towards one side of the embryonal axis.
The $Coleoptile$ is the protective sheath covering the plumule,and the $Coleorhiza$ is the protective sheath covering the radicle.
Therefore,the correct answer is $B$.
This large,shield-shaped cotyledon is known as the $Scutellum$.
It is situated towards one side of the embryonal axis.
The $Coleoptile$ is the protective sheath covering the plumule,and the $Coleorhiza$ is the protective sheath covering the radicle.
Therefore,the correct answer is $B$.
0 likesView Solution
106
BiologyMediumMCQNEET · 2015
If you suspect an antibody deficiency in a person,which of the following would you look for as definitive evidence?
A
Serum globulins
B
Plasma fibrinogen
C
Serum albumin
D
Hemocytes
Solution
(A) Antibodies are proteins known as immunoglobulins,which belong to the class of proteins called globulins.
In the human body,antibodies are found in the serum fraction of the blood.
Therefore,a deficiency in antibodies is typically reflected by a decrease in the levels of serum globulins.
Serum albumin is a transport protein,plasma fibrinogen is involved in blood clotting,and hemocytes are blood cells,none of which are antibodies.
In the human body,antibodies are found in the serum fraction of the blood.
Therefore,a deficiency in antibodies is typically reflected by a decrease in the levels of serum globulins.
Serum albumin is a transport protein,plasma fibrinogen is involved in blood clotting,and hemocytes are blood cells,none of which are antibodies.
0 likesView Solution
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real NEET style covering Biology with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D Biology papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Run live NEET mock exams with unlimited students, 360° analytics & white-label branding.
See DemoFrequently Asked Questions
How many Biology questions are in NEET 2015?
There are 193 Biology questions from the NEET 2015 paper on Vedclass, each with a detailed step-by-step solution in English.
Are NEET 2015 Biology solutions available in English?
Yes. All solutions on this page are in English. You can also switch to English or Hindi using the language buttons above the questions.
Can I practice NEET 2015 Biology as a timed test?
Yes. Use the Vedclass Test Series to attempt a full NEET mock test covering Biology with time limits and instant score analysis.
Can teachers create Biology papers from NEET previous year questions?
Yes. The Vedclass Exam Paper Generator lets teachers mix NEET Biology questions and generate Set A/B/C/D papers in minutes.
For Teachers & Institutes
Build a Custom Biology Paper
Pick NEET 2015 Biology questions, set difficulty, and generate Set A/B/C/D in 2 minutes.