Que- The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as
a. Hydrophilic
b. Hydrophobic
c. Both of these
d. None of these
Answer- Hydrophobic
Que- The most important photosynthetic pigment
a. Chlorophyll a
b. Chlorophyll b
c. Xanthophyll
d. Carotenes
Answer- Chlorophyll a
Que- Bacteriochlorophylls does not include
a. Chlorophyll e
b. Chlorophyll d
c. Chlorophyll a
d. Chlorophyll c
Answer- Chlorophyll a
Que- Molecular formula of chlorophyll b is
a. C55 H10 O4 N6 Mg
b. C55 H70 O6 N5 Mg
c. C55 H71 O6 N4 Mg
d. C55 H70 O6 N4 Mg
Answer- C55 H70 O6 N5 Mg
Que- Carotenoids perform protective function in
a. Animals
b. Plants
c. Both of these
d. None of these
Answer- Both of these
Que- About _______ % of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds.
a. 0.1
b. 0.2
c. 0.3
d. 0.4
Answer- 0.1
Que- Air contains ______ % of CO2
a. 0.02-0.03
b. 0.03-0.04
c. 0.04-0.05
d. 0.05-0.06
Answer- 0.03-0.04
Que- PS I has chlorophyll a molecule which absorbs maximum light of _____ nm.
a. 600.0
b. 650.0
c. 680.0
d. 700.0
Answer- 700.0
Que- The percentage of light absorbed by the leaf
a. 0.2
b. 0.15
c. 0.1
d. 0.01
Answer- 0.01
Que- The first action spectrum was obtained by
a. T.W.Englemam
b. Malleus
c. T.W.Inws
d. W.Stapes
Answer- T.W.Englemam
Que- First Actions spectrum was obtained by using
a. Algae
b. Fungi
c. Bacteria
d. Spirogyra
Answer- Spirogyra
Que- Of the following, which one causes higher production of food in green plants
a. Blue
b. Orange
c. Red
d. Violet
Answer- Red
Que- Photosynthesis carried out by terrestrial plants is ____ of total photosynthesis.
a. 1-2%
b. 0.05
c. 0.1
d. 0.2
Answer- 0.1
Que- Stomata cover only _________ of leaf surface.
a. 0.03 - 0.04%
b. 0.1
c. 1-2 %
d. 0.5
Answer- 1-2 %
Que- Reduction in photosynthesis is of
a. O2
b. CO2
c. H2O
d. light energy
Answer- CO2
Que- NADPH2 provides
a. assimilatory power
b. chemical energy
c. energized electrons
d. All of these
Answer- All of these
Que- Of the following, which one light - gathering
a. Antenna complex
b. Reaction centre
c. Photosystem
d. None of these
Answer- Antenna complex
Que- Photosystem II has molecules which absorbs maximum light of
a. 680 nm
b. 100 m
c. 700 nm
d. 670 nm
Answer- 680 nm
Que- Glycolysis takes place in:
a. Nucleus
b. Cytosol
c. Mitochondria.
d. Ribosomes
Answer- Cytosol
Que- Complete breakdown of glucose molecule takes place in which of the following:
a. Alcoholic fermentation
b. Lactic acid fermentation
c. Aerobic respiration.
d. All of these
Answer- Aerobic respiration.
Que- In alcoholic fermentation Pyruvic acid is broken down into:
a. Acetaldehyde
b. Methyl alcohol
c. Ethyl alcohol.
d. Lactic acid.
Answer- Ethyl alcohol.
Que- In which of the following component of the body, lactic acid fermentation takes place:
a. Brain.
b. Heart
c. Liver.
d. Muscles
Answer- Muscles
Que- In Anaerobic respiration only _____ % of the energy present within the chemical bond of glucose is converted into ATP.
a. 0.01
b. 0.02
c. 0.03
d. 0.04
Answer- 0.02
Que- Cellular respiration is essentially a/an _________ process.
a. Oxidation.
b. Reduction.
c. Redox.
d. None of the above.
Answer- Oxidation.
Que- ATP are consumed during
a. Glycolysis
b. Kreb's cycle
c. Light dependent phase
d. none of these
Answer- Glycolysis
Que- From one pyruvate passing through Kreb's cycle, how many NADH are formed?
a. 1.0
b. 2.0
c. 3.0
d. 4.0
Answer- 3.0
Que- Final acceptor of electrons in respiratory chain is
a. NADH
b. Cytochrome a3
c. Water
d. Oxygen
Answer- Oxygen
Que- Carbohydrates, fats & proteins are essential for:
a. Metabolic processes of an organism
b. Providing energy
c. Formation of sturctures
d. All of these
Answer- All of these
Que- Magnesium is present in which of the following?
a. Cytochromes
b. ATP
c. Chlorophyll
d. Haemoglobin
Answer- Chlorophyll
Que- Deficiency of which of the following causes chlorosis?
a. Nitrogen
b. Magnesium
c. Iron
d. Both A and B
Answer- Both A and B
Que- Deficiency of K+ causes:
a. Stunted growth & strong chlorosis
b. No electron transport chains
c. Premature death of leaves.
d. Stunted growth of roots.
Answer- Premature death of leaves.
Que- Puccinia is a parasitic:
a. Plant
b. Fungus
c. Animal
d. Algae
Answer- Fungus
Que- Autotrophic organisms can exist in an exclusively ______ environment.
a. Organic
b. Inorganic
c. Wet
d. Terrestrial
Answer- Inorganic
Que- Strong chlorosis is due to the deficiency of _____ in plants.
a. Magnesium
b. Nitrogen
c. Potassium
d. Phosphorus
Answer- Nitrogen
Que- Stunted growth of roots is due to the deficiency of _____ in plants
a. Potassium
b. Magnesium
c. Phosphorus
d. Iron.
Answer- Phosphorus
Que- Puccinia commonly destroys
a. Corn
b. Tomato
c. Dodder
d. Wheat
Answer- Wheat
Que- Nodules on roots of leguminous plants have _____ bacteria
a. Anaerobic
b. Nitrogen fixing
c. Nitrifying
d. Ammonifying
Answer- Nitrogen fixing
Que- All of the insectivorous plants are true
a. Heterotrophs
b. Autotrophes
c. Carnivores
d. Saprotrophs
Answer- Autotrophes
Que- The leaf is bilobed with midrib between them. The plant is
a. Saraccnia
b. Dionaea
c. Pitcher plant
d. None of these
Answer- Dionaea
Que- Of the following, which one has more variety of nutrition?
a. Animals
b. Bacteria
c. Plants
d. Fungi
Answer- Animals
Que- Earthworm is an example of ______ feeder
a. Detritus
b. Fluid
c. Macrophageus
d. Filter
Answer- Detritus
Que- Of the following, which one is missing in herbivores?
a. Premolars
b. Canines
c. Incisors
d. Molars.
Answer- Canines
Que- Certain types of whales are also ______ feeder.
a. Fluid
b. Macrophagous
c. Filter
d. None of these
Answer- Filter
Que- Hydra is an example of _______ feeder
a. Fluid
b. Macrophagous
c. Fluid
d. All of these
Answer- Macrophagous
Que- Parasites capable of living independently of its host at times is called as _______ parasite.
a. Obligate
b. Strict
c. Facultative
d. Endoparasite
Answer- Facultative
Que- In planaria, numerous small branches which end blindly are called as
a. Digestive tract
b. Intestinal caeca
c. Hepatic caeca
d. Both B & C
Answer- Intestinal caeca
Que- Midgut in cockroach is a short narrow tube called
a. Hepatic caeca
b. Gizzard
c. Stomach
d. Rectum
Answer- Stomach
Que- The partly digested food is stored in ____ in cockroach.
a. Gizzard
b. Crop
c. Hepatic caeca
d. Rectum
Answer- Crop
Que- Hunger contractions are _____ contractions
a. Antiperistalsis
b. Peristalsis
c. Voluntary
d. None of these
Answer- Peristalsis
Que- A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is
a. Pyrolysis
b. Pyrosis
c. Peristalsis
d. Dyspepsia
Answer- Pyrosis
Que- Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is
a. Creatin
b. Gastrin
c. Secretin
d. Pepsin
Answer- Secretin
Que- Anus is surrounded by _____ types of muscles
a. 2.0
b. 3.0
c. 1.0
d. 4.0
Answer- 2.0
Que- Incomplete or imperfect digestion is known as
a. Obesity
b. Dyspepsia
c. Anorexia nervous
d. Bulimia nervosa
Answer- Dyspepsia
Que- One of the commonest cause of food poisoning are the toxins produced by
a. Azobacter
b. Nitrosomonas
c. Campylobacter
d. Nitrobacter
Answer- Campylobacter
Que- The liquid that escapes during defrosting frozen meat contains _____ bacteria
a. Campylobacter
b. Nitrobacter
c. Azobacter
d. Salmonella
Answer- Salmonella
Que- Loss of appetite due to the fear of becoming obese is
a. Anorexia nervosa
b. Bulimia nervosa
c. Piles
d. Dyspepsia
Answer- Anorexia nervosa
Que- An illness which largely affects girls usually just after the onset of puberty.
a. Bulimia nervosa
b. Obesity
c. Anorexia nervosa
d. None of these
Answer- Anorexia nervosa
Que- Masses of dilated tortuous veins in the anorectal mucosa are known as
a. Bulimia
b. Ulcer
c. Adipose tissue
d. Hemorrhoids
Answer- Hemorrhoids
Que- Mastication is carried out by:
a. Teeth
b. Tongue
c. Smooth muscles
d. All of these
Answer- Teeth
Que- Dipeptides into amino acids are are converted through
a. Amino peptidase
b. Erypsin
c. Pepsin
d. Trypsin
Answer- Erypsin
Que- Pepsinogen is produced from
a. Mucous cells
b. Parietal cells
c. Zymogen cells
d. All of these
Answer- Zymogen cells
Que- _________ respiration is directly involved in the production of energy, necessary for all living activities.
a. Organismic
b. Cellular
c. Both of these
d. None of these
Answer- Cellular
Que- ______ respiration is the process by which cell utilized oxygen and produces CO2
a. Cellular
b. Organismic
c. Both of these
d. None of these
Answer- Cellular
Que- Of the following, which one is better respiratory medium.
a. Air
b. Water
c. Soil
d. None of these
Answer- Air
Que- Oxygen contents per liter of air is
a. 10 ml
b. 100 ml
c. 200 ml
d. 100ml
Answer- 200 ml
Que- Water is _____ times viscous than air
a. 50.0
b. 1000.0
c. 5000.0
d. 8000.0
Answer- 50.0
Que- There are ______ stomata per square cm of leaf surface in Tobacco plants.
a. 1200.0
b. 12000.0
c. 100000.0
d. 1000.0
Answer- 12000.0
Que- The air spaces may comprise upto ______ of total volume of leaf surface.
a. 0.3
b. 0.2
c. 0.4
d. 0.5
Answer- 0.4
Que- The glycolate produced diffuses into the membrane bounded organelles called
a. Glyoxisomes
b. Peroxisomes
c. Lysosomes
d. Mitochondria
Answer- Peroxisomes
Que- Active site of Rubisco is evolved to bind
a. CO2
b. O2
c. Both of these
d. H2O
Answer- Both of these
Que- Number of spiracles present in cockroach is
a. 15.0
b. 10.0
c. 20.0
d. 30.0
Answer- 20.0
Que- Number of spiracles present in the thorax of cockroach is
a. 2.0
b. 3.0
c. 5.0
d. 4.0
Answer- 4.0
Que- When abdomen expands, the number of spiracles open is
a. 2.0
b. 3.0
c. 6.0
d. 8.0
Answer- 8.0
Que- The blood enters the _____ side of heart
a. Posterior
b. Anterior
c. Lateral
d. All possible
Answer- Posterior
Que- Gaseous exchange through the skin is known as ______ respiration.
a. Cuticular
b. Cutaneous
c. Skin
d. Pulmonary
Answer- Cutaneous
Que- Parabronchi are open at ______ end/s
a. Single
b. Both
c. Do not have opening
d. None of these
Answer- Both
Que- In most birds air sacs are _____ in number
a. 10.0
b. 3.0
c. 4.0
d. 9.0
Answer- 9.0
Que- Vocal cords are stretched across
a. Larynx
b. Pharynx
c. Golttis
d. None of these
Answer- Golttis
Que- Functional units of lungs are called
a. Alveoli
b. Air sacs
c. Parabronchi
d. None of these
Answer- Air sacs
Que- Lungs are spongy due to the presence of million of
a. Air sacs
b. Alveoli
c. Bronchioles
d. Parabronchi
Answer- Alveoli
Que- Lungs are covered with double layered thin membranous sac called
a. Disphragm
b. Pleura
c. Pericardium
d. Rib cage
Answer- Pleura
Que- The maximum amount of oxygen which normal human blood absorbs and carries at sea level is _____ per 100 ml of blood.
a. 10 ml
b. 20 ml
c. 30 ml
d. 40 ml
Answer- 20 ml
Que- Haemoglobin can be almost completely oxygenated by an oxygen pressure of ____ of mercury.
a. 10 mm
b. 60 mm
c. 10 cm
d. 100mm
Answer- 100mm
Que- Important factors which affect the capacity of haemoglobin to combine with oxygen is
a. Temperature
b. Carbon dioxide
c. pH
d. All of these
Answer- All of these
Que- The increase in pH of blood has _____ effect on the oxygen carrying capacity of haemogolobin
a. plus ve
b. - ve
c. No
d. All of these
Answer- plus ve
Que- % age of CO2 carried as carboxyhaemoglobin is
a. 0.05
b. 0.7
c. 0.2
d. 0.1
Answer- 0.2
Que- Arterial blood contains ______ of CO2 per 100 ml of blood
a. 54 ml
b. 60 ml
c. 64 ml
d. 50 ml
Answer- 50 ml
Que- A disease of longs in which inside of the lungs is damaged resulting in cough and fever
a. Lung cancer
b. Asthma
c. Emphysema
d. Pulmonary tuberculosis
Answer- Emphysema
Que- Of the following, which one is a contagious disease?
a. Tuberculosis
b. Lungs cancer
c. Asthma
d. Emphysema
Answer- Tuberculosis
Que- Which of the following promotes growth in plants?
a. Photorespiration
b. Calvin cycle
c. Both of these
d. None of these
Answer- Calvin cycle
Que- Which of the following animals has a respiratory system with one way flow of the air through the lungs, and the air is renewed after inspiration?
a. Cockroach
b. Earthworm
c. Aves
d. Frogs
Answer- Aves
Que- Voice box is another name used for
a. Buccal cavity
b. Pharynx
c. Larynx
d. Chest Cavity
Answer- Larynx
Que- All of the following contain cartilage except
a. Larynx
b. Trachea
c. Bronchi
d. Bronchioles
Answer- Bronchioles
Que- Respiratory distress syndrome is common especially for infants with a
a. Less than 7 month
b. Less than 8 month
c. Less than 9 month
d. More than 9 month
Answer- Less than 7 month
Que- There are _______ types of nutrients needed by plants besides light to carry out photosynthesis
a. Two
b. Three
c. Four
d. Five
Answer- Three
Que- The site/s where most of the uptake of water and minerals take place is/are
a. Root hairs
b. Root cells
c. Underground stem
d. All of these
Answer- Root hairs
Que- The uptake of water in plants involves
a. Active transport
b. Passive transport
c. Both of these
d. None of these
Answer- Passive transport
Que- The membrane of vacuoles is known as
a. Vacuoloplast
b. Tonoplast
c. Tanoplast
d. All of these
Answer- Tonoplast
Que- The diffusion of ions along with water also takes place by mass flow system along the ______ path
a. Tonoplast
b. Apoplast
c. Symplast
d. Vacuolar
Answer- Apoplast
Que- Active transport is dependent on
a. Photosynthesis
b. Respiration
c. Photophosporylation
d. None of these
Answer- Respiration