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Which of the following is true about diffusion?
Biology Botany Class 11th NEET UG NEET UG Preparation
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
Ans → (d)Diffusion depends on the type of living system
Explanation → Diffusion is a slow process, it is not dependent on the living systems
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. 5 of Quiz- (Que-ID : 2848)
Science of cultivation, breeding, marketing and arrangement of flowers is called
- arboriculture
- floriculture
- horticulture
- anthology
Q. 1 of Quiz- (Que-ID : 3394)
Biolistics (gene gun) is suitable for
- introducing rDNA into plant cells
- introducing rDNA into animal cells
- disarming the pathogen vectors
- DNA fingerprinting.
Q. 12 of Quiz- (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. 10 of Quiz- (Que-ID : 3153)
Which of the following is not a polysaccharide?
- Lactose
- Starch
- Glycogen
- Dextrin
Q. 22 of Quiz- (Que-ID : 3540)
The agents that bring undesirable changes in the environment arc called
- Pollution
- Fragments
- Pollutants
- None of the above
Q. 4 of Quiz- (Que-ID : 2722)
Name the classification based on genetic and evolutionary relationship
- Phonetics
- Biosynthesis
- Numerical taxonomy
- Cladistics
Q. 6 of Quiz- (Que-ID : 2674)
Plasma without clotting factor is known as
- sirum
- Serum
- Both a and b
- None of the above
Q. 20 of Quiz- (Que-ID : 3113)
NPK denotes
- Nitrogen, Protein, Kinetin
- Nitrogen, Protein, Potassium
- Nitrogen, Potassium, kinetin
- Nitrogen, Phosphorus, Potassium
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. 11 of Quiz- (Que-ID : 2879)
RCH stands for
- routine check-up of health
- reproduction cum hygiene
- reversible contraceptive hazards
- reproductive and child health care
Q. 25 of Quiz- (Que-ID : 3293)
Yeast is different from penicillium and Rhizopus in being
- Acellular
- Unicellular
- Having unseptate hyphae
- multicellular
Q. 25 of Quiz- (Que-ID : 3143)
ψp denotes to
- Water potential
- Negative potential
- Pressure potential
- Solute potential
Q. 9 of Quiz- (Que-ID : 3077)
Besides water and CO2, which is more essential a raw material for food formation
- light
- oxygen
- NAD
- mineral salt
Q. 5 of Quiz- (Que-ID : 3048)
TCA cycle was discovered by
- Otto Meyerhof
- Hans Kreb
- Gustav Embden
- All of these
Q. 11 of Quiz- (Que-ID : 2929)
Rate of mutation is affected by
- temperature
- X rays
- gamma rays
- all of these
Q. 19 of Quiz- (Que-ID : 3487)
Ecological pyramids were first devised by
- Charles Eltom
- R. Hesse
- R.A. Lindemann
- Justus von Liebig
Q. 20 of Quiz- (Que-ID : 3063)
One molecule of glucose yields ___ ATP molecules in aerobic respiration.
- 2
- 16
- 38
- 42
Q. 13 of Quiz- (Que-ID : 3531)
Minimata disease is caused by
- ByChromium
- By Cadmium
- By Methyl mercury
- By Radioactive elements
Q. 12 of Quiz- (Que-ID : 2755)
PTH is called hypercalcemic hormone because it leads to
- Absorption of CaCo3 from digested food
- Reabsorption of water from renal tubules
- Increasing blood calcium levels
- Maintain ion balance in blood
Q. 19 of Quiz- (Que-ID : 3287)
Which one of the following is a vascular cryptogram?
- Cedrus
- Equisetum
- Ginkgo
- Marchantia
Q. 5 of Quiz- (Que-ID : 1714)
Stomata are bound by a pair of guard cells. Stomata close when guard cells become-
- Turgid
- flacid
- half flacid
- small
Q. 1 of Quiz- (Que-ID : 2819)
Which of the following groups is formed only of the hermaphrodite organisms?
- Earthworm, tapeworm, housefly, frog
- Earthworm, tapeworm, seahorse housefly
- Earthworm, leech, sponge, roundworm
- Earthworm, tapeworm, leech, sponge
Q. 18 of Quiz- (Que-ID : 3336)
The term ‘antitoxin’ refers to a preparation containing
- B-lymphoctyes and T-lymphocytes
- antibodies to the toxin
- weakend pathogen
- inactivated T-lymphocytes.
Q. 22 of Quiz- (Que-ID : 3090)
In the half-leaf experiment of photosynthesis, KOH solution is used because
- It provides O2 to the leaf.
- It provides moisture to the leaf.
- t helps in CO2 fixation
- It absorbs CO2
Q. 25 of Quiz- (Que-ID : 3018)
The number of chromosome and the amount of DNA are changed in
- Metaphase and M phase
- Anaphase and S phase
- Interphase and S phase
- None of these
Q. 11 of Quiz- (Que-ID : 3154)
Inulin is made up of _______ and _______
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Q. 4 of Quiz- (Que-ID : 3472)
Exchange of water in submerged plant
- Stomata
- Normal surface
- Hydathode
- Lenticel
Q. 11 of Quiz- (Que-ID : 3154)
Inulin is made up of _______ and _______
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Q. 12 of Quiz- (Que-ID : 2680)
Which enzyme converts prothrombin into thrombin
- Thrombin
- Thrombokinase
- Pepcase
- Ligase
Q. 23 of Quiz- (Que-ID : 2741)
Diatoms do not decay fast because
- They are chitinous
- They have silicious wall
- Contain saline oil
- Body is impervious to water
Q. 18 of Quiz- (Que-ID : 2686)
How many times our heart beats in a minute
- 65-59
- 70-75
- 25-45
- None of the above
Q. 10 of Quiz- (Que-ID : 3178)
The main function of the skin of frog is
- the exchange of respiratory gases
- the storage of fat
- the storage of energy
- to convert light vitamin D
Q. 1 of Quiz- (Que-ID : 3269)
Rhodophyceae is called red algae because of the pigment
- Fucoxanthin
- Phycoerythrin
- Carotenoids
- Chlorophyll c
Q. 16 of Quiz- (Que-ID : 3459)
Habitat together with functions of a species constitute its:
- Topography
- Trophic level
- Boundary
- Ecological niche
Q. 8 of Quiz- (Que-ID : 3301)
According to Lamarckism, long necked giraffes evolved because
- nature selected only long necked ones
- humans preferred only long necked ones
- short necks suddenly changed into long necks
- of stretching of necks over many generations by short necked ones.
Q. 23 of Quiz- (Que-ID : 2891)
The technique called Gamete Intra Fallopian Transfer (GIFT) is recommended for those females
- who cannot produce an ovum
- who cannot retain the foetus inside uterus
- who cannot provide suitable environment for fertilisation
- all of these
Q. 1 of Quiz- (Que-ID : 2994)
Golgi complex and endoplasmic reticulum cannot be seen during
- late telophase
- late prophase
- early anaphase
- late metaphase
Q. 19 of Quiz- (Que-ID : 3412)
Plasmid is a
- Fungus
- Plasmid
- Part of Plasma membrane
- Extra chromosomal DNA in bacterial cell
Q. 23 of Quiz- (Que-ID : 2766)
Implantation of embryo and placentation is under control of
- FSH
- Estrogen
- Progesterone
- Estradiol
Q. 23 of Quiz- (Que-ID : 2866)
Polygonum type of embryo sac is
- 8 – nucleate, 7 – celled
- 8 – nucleate, 8 – celled
- 7 – nucleate, 7 – celled
- 4 – nucleate, 3 – celled
Q. 24 of Quiz- (Que-ID : 2942)
Experimental verification of ‘chromosomal theory of inheritance’ was done by
- Sutton and Boveri
- Morgan et al
- Henking
- Karl Correns
Q. 10 of Quiz- (Que-ID : 2878)
The correct surgical procedure as a contraceptive method is
- ovariectomy
- hysterectomy
- vasectomy
- castration
Q. 14 of Quiz- (Que-ID : 2782)
Keystone species are
- Important for ecosystem
- Important for plants
- Endangered species
- Extinct species
Q. 6 of Quiz- (Que-ID : 3349)
Jaya and Ratna are the semi-dwarf varieties of
- wheat
- rice
- cowpea
- mustard
Q. 20 of Quiz- (Que-ID : 2989)
ANF can cause
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
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