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ψp denotes to
Biology Botany Class 11th NEET UG NEET UG Preparation
Q. 25 of Quiz-1445 (Que-ID : 3143)
ψp denotes to
- Water potential
- Negative potential
- Pressure potential
- Solute potential
Ans → (c)Pressure potential
Explanation → Pressure potential
This question is taken from this post → Transport in Plants : Biology ( class 11th ) Revision Test | MCQs for NEET - attemp/practice
More MCQs in - Transport in Plants : Biology ( class 11th ) Revision Test | MCQs for NEET
Q. 1 of Quiz-1445 (Que-ID : 3119)
Dry seeds kept in water swell due to
- absorption
- diffusion
- imbibition
- none of these
Q. 2 of Quiz-1445 (Que-ID : 3120)
Choose the correct statement/statements. Pumps in active transport are A. Lipids that bind molecules to pass them through the membrane. B. Transport molecules uphill. C. These are specific transporters. D. These are sensitive to inhibitors
- A and C
- A, B and D
- B, C and D
- C and D
Q. 3 of Quiz-1445 (Que-ID : 3121)
Which of the following is the unit of ψ?
- Pascal
- Joule
- Newton
- Electron volt
Q. 4 of Quiz-1445 (Que-ID : 3122)
Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure 7 atm and diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure 3 atm and diffusion pressure deficit 5 atm. The result will be
- No movement of water
- Movement of water from cell B to A
- Movement of water from cell A to B
- Equilibrium between the two
Q. 5 of Quiz-1445 (Que-ID : 3123)
Which of the following is decreased during increase in humidity in the atmosphere?
- Transpiration
- Photosynthesis
- Respiration
- Glycolysis
Q. 7 of Quiz-1445 (Que-ID : 3125)
Two types of molecules cross the membrane in the same direction, it is called as
- Uniport
- Symport
- Antiport
- Multiport
Q. 8 of Quiz-1445 (Que-ID : 3126)
Diffusion rate is affected by
- temperature
- membrane permeability
- gradient of concentration
- all of these
Q. 9 of Quiz-1445 (Que-ID : 3127)
Cells shrink in _________ solution
- isotonic
- hypotonic
- hypertonic
- hypotonic and hypertonic
Q. 10 of Quiz-1445 (Que-ID : 3128)
Which of the following is true about diffusion?
- There is no expenditure of energy
- Molecules move in Brownian motion
- Substances moves from the region of higher concentration to the region of lower concentration.
- Diffusion depends on the type of living system
Q. 11 of Quiz-1445 (Que-ID : 3129)
Which of the following is true about diffusion?
- There is no expenditure of energy
- Molecules move in Brownian motion
- Substances moves from the region of higher concentration to the region of lower concentration
- Diffusion depends on the type of living system
Q. 12 of Quiz-1445 (Que-ID : 3130)
Water is lost in a liquid state in some plants through hydathodes. These hydathodes
- do not show any specificity in opening and closing
- remain closed during day
- remain closed at night
- remain always open
Q. 13 of Quiz-1445 (Que-ID : 3131)
If pressure greater than atmospheric pressure is applied to pure water, the water potential
- increases
- decreases
- remains same
- atmospheric pressure does not affect water potential
Q. 14 of Quiz-1445 (Que-ID : 3132)
Choose the correct sequence of water movement in the plants.
- Cortex, protoxylem, endodermis, root hair, pericycle, metaxylem
- Root hair, cortex, endodermis, pericycle, protoxylem, metaxylem
- Root hair, protoxylem, metaxylem, pericycle, cortex, endodermis
- Root hair, pericycle, endodermis, cortex, protoxylem, metaxylem
Q. 15 of Quiz-1445 (Que-ID : 3133)
Wilting of a plant results from excessive
- respiration
- photosynthesis
- absorption
- transpiration
Q. 16 of Quiz-1445 (Que-ID : 3134)
Cohesion theory of water movement in plants was put forth by
- Henry Dixon
- F. F. Blackman
- Melvin cycle
- Hans. A. Krebs
Q. 17 of Quiz-1445 (Que-ID : 3135)
Diffusion rate is affected by
- temperature
- membrane permeability
- gradient of concentration
- all of these
Q. 18 of Quiz-1445 (Que-ID : 3136)
When a plant is girdled (ringed)
- the root and shoot die at the same time
- the shoot dies first
- the root dies first
- neither root nor shoot will die
Q. 19 of Quiz-1445 (Que-ID : 3137)
Choose the correct statement/statements. Pumps in active transport are A. Lipids that bind molecules to pass them through the membrane. B. Transport molecules uphill. C. These are specific transporters. D. These are sensitive to inhibitors
- A and C
- A, B and D
- B, C and D
- C and D
Q. 20 of Quiz-1445 (Que-ID : 3138)
Assertion (A): K+ ion accumulation found in Nitella depends on its respiratory activity. Reason (R)Absorption of all ions in plants completely depends on the usage of metabolic energy. The correct answer is
- A and R are true and R is the correct explanation of A
- A and R are true but R is not the correct explanation of A
- A is true but R is false
- A is false but R is true
Q. 21 of Quiz-1445 (Que-ID : 3139)
Root hairs absorb water from soil with the help of
- Root pressure
- osmotic pressure
- Suction pressure
- Turger pressure
Q. 22 of Quiz-1445 (Que-ID : 3140)
Proteins that form huge pores in the membrane of the certain organelles and bacteria are called as
- Porins
- Pressure gradient
- Enzymes
- Flaccid
Q. 23 of Quiz-1445 (Que-ID : 3141)
What is the effect of turgor pressure in Munch hypothesis?
- Increase of turgor pressure
- Decrease of turgor pressure
- No change in turgor pressure
- independent to water potential gradient
Q. 24 of Quiz-1445 (Que-ID : 3142)
Munch hypothesis is based on
- Translocation of food due to turgor pressure gradient and imbibition force
- Translocation of food due to turgor pressure gradient
- Translocation of food due to imbibition force
- None of the above
Q. 25 of Quiz-1445 (Que-ID : 3143)
ψp denotes to
- Water potential
- Negative potential
- Pressure potential
- Solute potential
More MCQs In - Biology Botany Class 11th NEET UG NEET UG Preparation
Q. 10 of Quiz- (Que-ID : 2903)
Besides activating the egg another role of a sperm is to carry to egg
- RNA
- mitochondria
- DNA
- ribosomes
Q. 19 of Quiz- (Que-ID : 2712)
The central part of thick filament which isn?t overlapped by thin filaments is called
- H zone
- I band
- A band
- None of the above
Q. 13 of Quiz- (Que-ID : 3281)
The gametophyte is not an independent, free-living generation in
- Pinus
- Polytrichum
- Adiantum
- Marchantia
Q. 13 of Quiz- (Que-ID : 3031)
Mechanism of development was explained by
- Hans Dietrisch
- Spemann
- Both a and b
- Haemmerling
Q. 15 of Quiz- (Que-ID : 3358)
MOET stands for
- Multiple Ovulation and Egg transfer Technology
- Multiple Ovary and Embryo Transfer Technology
- Multiple Ovulation Embryo Transfer Technology
- Method of Egg Transfer Technology
Q. 1 of Quiz- (Que-ID : 3269)
Rhodophyceae is called red algae because of the pigment
- Fucoxanthin
- Phycoerythrin
- Carotenoids
- Chlorophyll c
Q. 13 of Quiz- (Que-ID : 3056)
Which of the following acts as mobile carrier for transfer of electrons between complex III and complex IV?
- Cytochrome c
- cytochrome a3
- cytochrome a
- FADH2
Q. 13 of Quiz- (Que-ID : 2706)
Which among the following are involuntary muscles
- Cardiac
- Skeletal
- Smooth
- Both a and c
Q. 9 of Quiz- (Que-ID : 3102)
Mineral salts which are absorbed by the roots from soil are in the form of
- Dilute solution
- Very concentrated solution
- Concentrated solution
- Very dilute solution
Q. 10 of Quiz- (Que-ID : 3403)
Restriction’ in Restriction enzyme refers to
- cleaving ofphosphodiester bond in DNA by the enzyme
- cutting of DNA at specific position only
- prevention of the multiplication of bacteriophage in bacteria
- all of the above
Q. 7 of Quiz- (Que-ID : 3200)
Callose deposition is found in
- tracheids
- companion cells
- sieve areas
- phloem parenchyma
Q. 23 of Quiz- (Que-ID : 3191)
The epithelium found in the lining layer of stomach and intestine is
- Squamous epithelium
- Cuboidal epithelium
- Columnar epithelium
- Ciliated columnar epithelium
Q. 5 of Quiz- (Que-ID : 3148)
Which of the following statements regarding enzyme inhibition is correct?
- Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein
- Non-competitive inhibitors often bind to the enzyme irreversibly
- Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme
- Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate
Q. 11 of Quiz- (Que-ID : 2704)
Which among the following are synovial joints
- Ball and socket joint
- Hinge joint
- Pivot joint
- All of the above
Q. 8 of Quiz- (Que-ID : 3226)
Potato tuber is an underground stem because
- Tinospora
- Jussiaea
- Viscum
- Vanda
Q. 11 of Quiz- (Que-ID : 3004)
Meiosis occurs for the human female in ______.
- Pancreas
- Liver
- Ovary
- Kidney
Q. 8 of Quiz- (Que-ID : 2726)
Common feature of archaebacteria
- Structure of cell membrane
- Structure of cell wall
- Has fatty acid synthetase
- Structure of flagellin protein
Q. 23 of Quiz- (Que-ID : 2766)
Implantation of embryo and placentation is under control of
- FSH
- Estrogen
- Progesterone
- Estradiol
Q. 8 of Quiz- (Que-ID : 3326)
The common cold is caused by
- Rhino viruses
- Streptococcus pnemoniae
- Salmonella typhimurium
- Plasmodium vivax.
Q. 7 of Quiz- (Que-ID : 2775)
Binomial nomenclature was given by
- Ernst Mayr
- alexander aggisz
- carolus Linnaeus
- None of the above
Q. 1 of Quiz- (Que-ID : 2844)
The anther wall consists of four wall layers where
- tapetum lies just inner to endothecium
- middle layers lie between endothecium and tapetum
- endothecium lies inner to middle layers
- tapetum lies next to epidermis
Q. 10 of Quiz- (Que-ID : 2978)
Each kidney has how many nephrons
- 1 million
- 2 million
- 2 thousand
- 2 hundred
Q. 1 of Quiz- (Que-ID : 3319)
A person with sickle cell anaemia is
- more prone to malaria
- more prone to typhoid
- less prone to malaria
- less prone to typhoid
Q. 15 of Quiz- (Que-ID : 2984)
Which loop of hence is permeable to water
- Descending loop
- Ascending loop
- Both the loops
- None of the above
Q. 6 of Quiz- (Que-ID : 2749)
Anabolic steroids are ___ versions of testosterone
- Effective
- Synthetic
- Natural
- Ineffective
Q. 25 of Quiz- (Que-ID : 2668)
which among the following is responsible to shift o2 dissociation curve right
- High Pco2
- Low pco2
- Low H+
- None of the above
Q. 14 of Quiz- (Que-ID : 2983)
Kidney transplantation is the ultimate method of correction in which case
- Renal calculi
- Renal failure
- Uremia
- None of the above
Q. 23 of Quiz- (Que-ID : 3016)
A cell plate is laid down during
- Cytokinesis
- Interphase
- Karyokinesis
- None of these
Q. 9 of Quiz- (Que-ID : 2877)
Condoms are one of the most popular contraceptives because of the following reasons.
- These are effective barriers for insemination
- They do not interfere with coital act
- These help in reducing the risk of STDs
- All of the above
Q. 25 of Quiz- (Que-ID : 2868)
What is the function of filiform apparatus in an angiospermic embryo sac?
- Brings about opening of the pollen tube
- Guides the pollen tube into a synergid
- Prevents entry of more than one pollen tube into a synergid
- None of these
Q. 25 of Quiz- (Que-ID : 3518)
Wild life is destroyed most by
- Lack of proper care
- Mass scale hunting
- Destruction of natural habitats
- Natural calamity
Q. 10 of Quiz- (Que-ID : 3078)
In actively gro – wing young plants, the best data for estimating the rate of photosynthesis would be
- ratio of oxygen evolved to carbon dioxide absorbed
- increase in fresh weight
- increase in dry weight
- increase in carbohydrate
Q. 19 of Quiz- (Que-ID : 2762)
The phase of menstrual cycle that last for 7-8 days are
- Ovulatory
- Menstruation
- Luteal
- Follicular
Q. 4 of Quiz- (Que-ID : 3472)
Exchange of water in submerged plant
- Stomata
- Normal surface
- Hydathode
- Lenticel
Q. 2 of Quiz- (Que-ID : 3170)
Which of the following is absent in female frog?
- Webbed feet
- Copulatory pads
- Tympanum
- All are present
Q. 1 of Quiz- (Que-ID : 2869)
IUDs prevent pregnancy by
- inhibiting physiological and morphological uterine changes required for implantation
- increasing phagocytosis of spermatozoa within uterus
- suppressing motility of sperms as well as their fertilising capacity
- all of these
Q. 10 of Quiz- (Que-ID : 3403)
Restriction’ in Restriction enzyme refers to
- cleaving ofphosphodiester bond in DNA by the enzyme
- cutting of DNA at specific position only
- prevention of the multiplication of bacteriophage in bacteria
- all of the above
Q. 12 of Quiz- (Que-ID : 3155)
A protein having both structural and enzymatic traits is
- Collagen
- Trypsin
- Myosin
- Actin
Q. 19 of Quiz- (Que-ID : 2937)
Inheritance of roan coat in cattle is an example of
- incomplete dominance
- codominance
- multiple allelism
- none of these
Q. 4 of Quiz- (Que-ID : 3447)
The number of birth during a given period in the population that are added to the initial density is referred to
- Natality
- Mortality
- Sex-ratio
- None of the above
Q. 8 of Quiz- (Que-ID : 2976)
Green glands/ antennal glands are excretory structures of which organism
- Earthworm
- Prawn
- Cockroach
- Planaria
Q. 12 of Quiz- (Que-ID : 3205)
Which of the following helps in the curling of the leaf surface?
- Bulliform cells
- Xylem tissue
- Palisade parenchyma
- Bundle sheath cells
Q. 1 of Quiz- (Que-ID : 2944)
Which of the following statements is the most appropriate for sickle cell anaemia ?
- It cannot be treated with iron supplements.
- It is a molecular disease.
- It conferes resistance to acquiring malaria
- All of the above.
Q. 22 of Quiz- (Que-ID : 3265)
The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the phylum
- Annelida
- Mollusca
- Cnidaria
- Echinodermata
Q. 10 of Quiz- (Que-ID : 3128)
Which of the following is true about diffusion?
- There is no expenditure of energy
- Molecules move in Brownian motion
- Substances moves from the region of higher concentration to the region of lower concentration.
- Diffusion depends on the type of living system
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