R4RIN – MCQs, Mock Tests | General Science Biology General science Mcq Question set 3

Respiration in Plants takes place through:

1. Stomata
2. Lenticels
3. Both A and B
4. Only A

✅ Correct Answer: 3

Consider the following statements:

1. Respiration takes place both day and night.
2. Photosynthesis occurs during day time only.
3. Both A and B are correct.
4. Neither A nor B are correct.

✅ Correct Answer: 3

Some plants store waste in their fruits in the form of solid bodies called:

1. Raphides
2. Lenticels
3. Stomata
4. Resins

✅ Correct Answer: 1

Name the waste products secreted by Plants?

1. Carbon Dioxide
2. Oxygen
3. Water Vapour
4. All are correct.

✅ Correct Answer: 4

Name an extension of the epidermal cells of a root which is in direct contact with the soil?

1. Root Hairs
2. Internodes
3. Bundle Scars
4. Pith

✅ Correct Answer: 1

What is the process of intake of nutrients by an organism as well as the utilisation of these nutrients by the organisms called?

1. Nutrition
2. Photosynthesis
3. Chloroplasts
4. Digestion

✅ Correct Answer: 1

The mode of nutrition in which an organism makes its own food from the simple inorganic material like carbon dioxide and water present in the surrounding is called:

1. Heterotrophic nutrition
2. Saprotrophic nutrition
3. Autotrophic nutrition
4. Holozoic nutrition

✅ Correct Answer: 3

What is the mode of nutrition called in which organisms cannot make its own food from simple inorganic material and depends on other organisms for its food?

1. Autotrophic nutrition
2. Heterotrophic nutrition
3. Parasitic nutrition
4. Holozoic nutrition

✅ Correct Answer: 2

When an organism obtains its food from decaying organic matter of dead plants, dead animals and rotten bread, etc., it is called:

1. Parasitic nutrition
2. Autotrophic nutrition
3. Holozoic nutrition
4. Saprotrophic nutrition

✅ Correct Answer: 4

The nutrition in which an organism derives its food from the body of another living organism without killing it, it’s called:

1. Saprotrophic nutrition
2. Parasitic nutrition
3. Holozoic nutrition
4. Autotrophic nutrition

✅ Correct Answer: 2

The process by which green plants make their own food from carbon dioxide and water by using sunlight energy in the presence of chlorophyll, is called:

1. Xanthophylls
2. Stomata
3. Photosynthesis
4. Chloroplast

✅ Correct Answer: 3

Animals which eat only plants are called:

1. Herbivores
2. Omnivores
3. Carnivores
4. None of the above

✅ Correct Answer: 1

What is the process of taking food into the body called?

1. Digestion
2. Assimilation
3. Ingestion
4. Egestion

✅ Correct Answer: 3

The process in which the food containing large, insoluble, molecules is broken down into small, water soluble molecules is called:

1. Digestion
2. Absorption
3. Ingestion
4. Assimilation

✅ Correct Answer: 1

The process of removal of toxic wastes from the body of an organism is called:

1. Transport
2. Respiration
3. Excretion
4. Nutrition

✅ Correct Answer: 3

The movement of a plant part in response to light is called:

1. Phototropism
2. Geotropism
3. Chemotropism
4. Hydrotropism

✅ Correct Answer: 1

The movement of plant part in response to gravity is called:

1. Thigmotropism
2. Hydrotropism
3. Phototropism
4. Geotropism

✅ Correct Answer: 4

The movement of a plant part in response to a chemical stimulus is called:

1. Hydrotropism
2. Chemotropism
3. Thigmotropsim
4. Phototropism

✅ Correct Answer: 2

The movement of a plant part in response to water is called:

1. Geotropism
2. Hydrotropism
3. Chemotropism
4. Thigmotropism

✅ Correct Answer: 2

The directional movement of a plant part in response to the touch of an object is called:

1. Phototropism
2. Geotropism
3. Thigmotropism
4. Hydrotropism

✅ Correct Answer: 3

The non-directional movement of a plant part in response to the touch of an object is called:

1. Thigmotropism
2. Thigmonasty
3. Phototropism
4. Photonasty

✅ Correct Answer: 2

The pad-like swelling at the base of each leaf of a sensitive plant is called:

1. Pistol
2. Scape
3. Pulvini
4. Foliage

✅ Correct Answer: 3

The non-directional movement of a plant part in response to light is called:

1. Phototropism
2. Thigmotropism
3. Geotropism
4. Photonasty

✅ Correct Answer: 4

The shorter fibres on the body of a neuron are called:

1. Dendrites
2. Axon
3. Cytoplasm
4. Myelin sheath

✅ Correct Answer: 1

In photosynthesis dark reaction, is called so because-

1. It occurs in dark.
2. It does not require light energy.
3. It cannot occur during daytime.
4. It occurs more rapidly at night.

✅ Correct Answer: 2

Rate of photosynthesis does not depend upon:

1. Quality of light
2. Intensity of Light
3. Duration of Light
4. Temperature

✅ Correct Answer: 3

For photosynthesis green plants require:

1. Chlorophyll only
2. Light
3. Carbon dioxide and water
4. All of the above

✅ Correct Answer: 4

Photosynthesis is a _____ process.

1. Catabolic
2. Anabolic
3. Exothermic
4. Metabolic

✅ Correct Answer: 2

Name the pigment which is responsible for absorption of light in plants?

1. Chlorophyll
2. Stoma
3. Xylem
4. Phloem

✅ Correct Answer: 1

In bacteria name the colour of light which is responsible for photosynthesis?

1. Ultra-Violet
2. Blue
3. Red
4. None of the above

✅ Correct Answer: 3

Quantasomes are found in:

1. Cristae of mitochondria
2. Thylakoid membrane of chloroplasts
3. Nucleus membrane
4. Lysosome

✅ Correct Answer: 2

Name the metal present in chlorophyll ‘a’ and ‘b’?

1. Iron
2. Copper
3. Magnesium
4. Manganese

✅ Correct Answer: 3

Name the structural unit of photosynthesis?

1. Thylakoid
2. Grana
3. Stroma
4. Chlorophyll

✅ Correct Answer: 1

Which of the following statements are true regarding Photosystems?

1. Photosystems are arrangements of chlorophyll and other pigments packed into thylakoids.
2. Many Prokaryotes have only one photosystem.
3. Both A and B are correct.
4. Only A is correct.

✅ Correct Answer: 3

What is the first step in photosynthesis:

1. Generation of ATP
2. Formation of NADPH
3. Through light, excitement of an electron of chlorophyll pigment.
4. Formation of Glucose

✅ Correct Answer: 3

Due to which reaction PGA is changed into phosphoglyceraldehyde in photosynthesis process?

1. Oxidation
2. Reduction
3. Electrolysis
4. Hydrolysis

✅ Correct Answer: 2

What will be the ratio of oxygen produced to that of consumed in daylight hours when the rate of respiration is less than that of photosynthesis?

1. 01:01
2. 10:01
3. 50: 1
4. 05:01

✅ Correct Answer: 3

In Photosynthesis process, how many molecules of NADPH and ATP are required to reduce six molecules of carbon dioxide to glucose?

1. 3 ATP and 2 NADPH
2. 6 ATP and 6 NADPH
3. 12 ATP and 18 NADPH
4. 18 ATP and 12 NADPH

✅ Correct Answer: 4

Mention the internal factors that influence photosynthesis?

1. Size, position and structure of stomata
2. Maintenance of the turgidity of the leaf cells
3. Relative proportion and distribution of chloroplasts in the mesophyll
4. All of the above

✅ Correct Answer: 4

Name the external factors that affect photosynthesis process?

1. Light Intensity
2. Carbon dioxide concentration
3. Temperature
4. All of the above

✅ Correct Answer: 4

What do you understand by NADP?

1. It is an enzyme
2. It is a co-enzyme
3. A part of s-RNA
4. A part of t-RNA

✅ Correct Answer: 3

Photosynthesis is :

1. An Oxidation-Reduction reaction
2. Synthesis reaction
3. Synthesis reaction
4. Replacement reaction

✅ Correct Answer: 1

Which one of the following waves are used by the common TV remote control?

1. Radio waves
2. Lasers
3. Infrared waves
4. Ultrasonic waves

✅ Correct Answer: 3

Which gas is safe and an effective extinguisher for all confined fires?

1. Nitrogen dioxide
2. Carbon dioxide
3. Sulphur dioxide
4. Nitrous Oxide

✅ Correct Answer: 2

Which one of the following statements is incorrect about laser?

1. It is a technique for producing intense beams of light, ultraviolet or infrared radiation of different wavelength.
2. Even in diamond laser beam can drill a hole.
3. A variety of lasers have been made from solids like the ruby crystal and semi conducting materials, liquids and gases.
4. All waves in laser, travel in phase.

✅ Correct Answer: 1

Which one of the following elements the drum of a Photostat machine is made up of:

1. Aluminium
2. Selenium
3. Barium
4. Caesium

✅ Correct Answer: 2

If we say the child has an IQ of 100, what does this means?

1. The performance of the child is below average.
2. The performance of the child is above average.
3. The mental age of the child is equal to his actual age.
4. The performance of the child cannot be better.

✅ Correct Answer: 3

Which bacteria is responsible for the formation of curd?

1. Lactic acid bacteria
2. Lactobacillus Acidophillus
3. Lactobacillus aureus
4. Bacillus radicicola

✅ Correct Answer: 2

Which one of the following bacteria present in the soil produces a peculiar smell if it rains on perched soil?

1. Streptomycetes
2. Staphymycetes
3. Diplomycetes
4. Micrococcus

✅ Correct Answer: 1

In poorly ventilated buildings which one of the following inert gases can be accumulated?

1. Helium
2. Neon
3. Argon
4. Radon

✅ Correct Answer: 4