R4RIN – MCQs, Mock Tests | Biology Biology MCQS section -1

Where is glucose stored in the body?

1. bones
2. blood
3. organs
4. None of the above

✅ Correct Answer: 2

Which is the Largest Organ in the Human Body?

1. Heart
2. Brain
3. Skin
4. Liver

✅ Correct Answer: 3

The disease Goitre is caused in persons who do not have in their diet sufficient

1. calcium
2. sodium
3. iodine
4. iron

✅ Correct Answer: 3

Organisms that feed on the excreta of other organisms are called

1. autotrophs
2. heterotrophs
3. coprophagous
4. saprotrophs

✅ Correct Answer: 3

Nissil granules occur in

1. Eosinophil
2. Glial cell
3. Neuron
4. Lymphocyte

✅ Correct Answer: 3

Amino acids can be distinguished from one another by

1. type of bond between the R group and the rest of the molecule
2. the number of R groups found on the amino acid molecules
3. the chemical properties of their R groups
4. the chemical properties of the amino and carboxyl groups

✅ Correct Answer: 3

Conversion of Glycogen to Glucose is stimulated by

1. Insulin
2. Cortisol
3. Glucagon
4. Progesterone

✅ Correct Answer: 3

Branch of biology in which we study about relationship between living and their environment

1. Physiology
2. Genetics
3. Ecology
4. Geology

✅ Correct Answer: 3

In which of the following organelles does photosynthesis take place?

1. Miochondria
2. Chloroplast
3. Central Vacuole
4. Ribosome

✅ Correct Answer: 2

Food wrapped in news paper is likely to get contaminated by

1. Magnesium
2. Alluminium
3. Lead
4. Copper

✅ Correct Answer: 3

Cholesterol belongs to which class of molecules?

1. Lipids
2. Carbohydrates
3. Nucleic acids
4. Proteins

✅ Correct Answer: 1

Genes are situated on _________

1. Chromosome
2. Mitochondria
3. Plastids
4. Ribosomes

✅ Correct Answer: 1

Which of the following crops would be preffered for sowing in order to enrich the soil with nitrogen?

1. Wheat
2. Mustard
3. Sunflower
4. Gram

✅ Correct Answer: 4

Branch of science which deal with the study of causative agent of disease is __________

1. Ecology
2. Etiology
3. Eugenics
4. Euthenics

✅ Correct Answer: 2

Which of the following is not an enzyme?

1. Oxytocin
2. Trypsin
3. Pepsin
4. Ptyalin

✅ Correct Answer: 1

When during the Cell Cycle are Chromosomes visible?

1. only during interphase
2. only during cell division
3. only during G1 phase
4. only during they are replicated

✅ Correct Answer: 2

Which of the following statements best describes nutrient density?

1. Consume a variety of foods from MyPyramids ve major food groups every day.
2. Consume foods that have the most nutrition for their kcalories
3. Choose a number of diFerent foods within any given food group rather than the same old thing.
4. All the above

✅ Correct Answer: 2

Where are Enzymes found?

1. food
2. human body
3. medicines
4. none

✅ Correct Answer: 2

Voluntary muscles are contained in the .........

1. heart
2. hind limb
3. liver
4. lung

✅ Correct Answer: 2

The process of bones increasing in width is known as

1. appositional growth
2. closing of the epiphyseal plate
3. concentric growth
4. long bones reaching adult length and width

✅ Correct Answer: 1

What happens during the S-phase of the cell cycle?

1. cell division
2. cell growth
3. DNA replication
4. protein and enzyme synthesis

✅ Correct Answer: 3

Which structure is common to plant and animal cells?

1. Centriole
2. Chloroplast
3. Central Vacuole
4. Mitochondria

✅ Correct Answer: 4

What provides electrons for the light reactions?

1. Water
2. Oxygen
3. Carbon dioxide
4. Light

✅ Correct Answer: 1

Origins of genetic variation

1. intragenic recombination
2. mutation
3. reticulation
4. All the above

✅ Correct Answer: 4

Cretinism is due to the disorder of the glands

1. Thymus
2. Parathyroid
3. Thyroid
4. Adrenal

✅ Correct Answer: 3

Green pigment is called

1. Chlorophyll
2. Xanthophyll
3. Carotene
4. Phycobillin

✅ Correct Answer: 1

The technique of DNA fingerprinting in human was developed for first time by _________

1. Lalji Singh
2. Alec Jeffreys
3. R. Ericson
4. J. Black

✅ Correct Answer: 2

At what temperature do pathogenic bacteria grow best in food?

1. 5 to 15 degrees Celsius
2. 15 to 25 degrees Celsius
3. 20 to 45 degrees Celsius
4. 40 to 65 degrees Celsius

✅ Correct Answer: 3

Finger like ends of the fallopian tubes are called

1. Fimbriae
2. Cysts
3. Papillae
4. Labia

✅ Correct Answer: 1

ATP is a compound that is synthesized when

1. digestive enzymes break amino acids into smaller pieces
2. energy stored in nitrogen is released froming amino acids
3. energy is stored in chemical bonds is released during cellular respiration
4. chemical bonds between carbon atoms are formed by during photo synthesis

✅ Correct Answer: 3

Best suited for areas subject to friction, the epithelial tissue is called as

1. transitional
2. simple columnar
3. straited squamous
4. areolar

✅ Correct Answer: 3

An olfactory stimulus travels from receptor to

1. amygdala
2. pons
3. olfactory bulb
4. thalamus

✅ Correct Answer: 3

Antisnake venom is prepared by

1. Pasteur institute
2. Hoffkine's institute
3. Birla's Institute
4. Indian science Institute

✅ Correct Answer: 2

Infection of salivary glands by a virus leads to

1. tetanus
2. mumps
3. pyorrhoea
4. ulcers

✅ Correct Answer: 2

Which structure is not part of the Endomembrane System?

1. Chloroplast
2. Plasma membrane
3. Nuclear envelope
4. Golgi apparatus

✅ Correct Answer: 1

Man has _____ pairs of salivary glands

1. 3
2. 4
3. 6
4. 8

✅ Correct Answer: 3

Which of the following serve as antibodies?

1. Proteins
2. Lipids
3. Carbohydrates
4. Nucleic acids

✅ Correct Answer: 1

Which of the following does not influence haemoglobin saturation?

1. Nitric oxide
2. Carbon dioxide
3. Temperature
4. DPG

✅ Correct Answer: 1

Pressure, pain, and temperature receptors in the skin are

1. Exteroceptors
2. Proprioceptors
3. Interoceptors
4. Mechanoreceptors

✅ Correct Answer: 1

Where in the cell are chromosomes located?

1. mitochondria
2. DNA
3. RNA
4. Nucleus

✅ Correct Answer: 4

Cells with similar markers stick together and function as

1. Organs
2. Tissues
3. Systems
4. Organisms

✅ Correct Answer: 2

Genes contain instructions for assembling what?

1. Amino acids
2. Proteins
3. Nucleotides
4. All of the above

✅ Correct Answer: 2

How many pints of blood in the human body?A) 6 - 8 B) 10 - 12C) 8 - 10 D) 5 - 7

1. 6 8
2. 10 12
3. 8 10
4. 5 7

✅ Correct Answer: 2

What part of the body controls balance?

1. Cerebrum
2. Cerebellum
3. Medulla oblangata
4. Amygdala

✅ Correct Answer: 2

How many chromosomes are in a human gamete?

1. 23
2. 46
3. 92
4. 102

✅ Correct Answer: 1

What process immediately preceeded protein synthesis at the ribosome?

1. transcription
2. replication
3. translation
4. duplication

✅ Correct Answer: 1

Genes are made of

1. Carbohydrates
2. Proteins
3. Fats
4. Nucleotides

✅ Correct Answer: 4

What color is Lobster blood?

1. Blue
2. White
3. Red
4. Colourless

✅ Correct Answer: 1

Which of these does not contain a structural protein?

1. Tendons
2. Ovalbumin
3. Muscles
4. Ligaments

✅ Correct Answer: 2