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WorksheetsClass 10 Science – Biology MCQ Quiz
Total questions: 20
Worksheet time: 10mins
Select the group in which all organisms have the same mode of nutrition.
Cuscuta, yeast, legumes, leeches and tapeworm
Cactus, ticks, lice, leeches and cow
Cuscuta, ticks, lice, leeches and tapeworm
Cactus, grass, lice, lion and tapeworm
Which of the following options indicates the products formed after breakdown of the glucose in our muscle cells when there is lack of oxygen?
Ethanol + carbon dioxide + Energy
Lactic acid + Energy
Lactic acid + carbon monoxide + Energy
Carbon dioxide + Water + Energy
Which of the following is a correct combination of function and part of the brain?
Posture and balance: Cerebrum
Salivation: Medulla in midbrain
Hunger: Pons in hindbrain
Blood pressure: Medulla in hindbrain
The blood glucose level in a patient was very high. It may be due to inadequate secretion of:
growth hormone from pituitary gland
oestrogen from ovary
insulin from pituitary gland
insulin from pancreas
In a cross between black furred rabbit (B) and white furred rabbit (b), all offspring were found to have black fur. What can be inferred about the genetic makeup of the parent rabbits?
BB × bb
Bb × Bb
Bb × bb
bb × bb
Which are the correct statements related to ozone?
(i) Ozone layer helps in increasing the UV radiations reaching earth. (ii) Ozone is a deadly poison. (iii) Ozone layer shields the earth from UV radiations. (iv) Ozone layer prevents UV rays which cause skin cancer. (v) Ozone is formed with the help of Chlorofluorocarbons.
(i), (ii), (iii)
(ii), (iii), (iv)
(iii), (iv), (v)
(i), (iv), (v)
Which of the following human activities has resulted in an increase of non-biodegradable substances?
Organic farming
Increase in tree plantation
Use of plastic as packaging material
Composting of kitchen waste
Assertion (A): Tallness of a pea plant is controlled by an enzyme. Reason (R): The gene for that enzyme makes proteins which help the plant to be tall.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, and R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Assertion (A): Vulture will always have the least amount of pesticides in a food chain. Reason (R): Vulture occupies the last trophic level and it gets only 10% of energy of the previous trophic level.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, and R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Unlike animals, plants do not have any excretory products as they do not eat food. Comment upon the statement with justification.
True
False
Partially true
Cannot be determined
How many chambers are there in the heart of humans?
Two
Three
Four
Five
Which organism occupies the first trophic level in a food chain?
Herbivores
Carnivores
Producers
Decomposers
Draw and explain how the nerve cells help in transmission of impulses.
Chemical transmission only
Electrical transmission only
Electrochemical transmission
Hormonal transmission
Which food item is rich in proteins?
Sweet potato
Rice
Egg
Potato
Which enzyme is present in saliva?
Pepsin
Trypsin
Salivary amylase
Lipase
Which method of reproduction produces variations?
Vegetative propagation
Asexual reproduction
Sexual reproduction
Budding
Which hormone regulates blood sugar level?
Thyroxine
Insulin
Adrenaline
Growth hormone
Which component of blood helps in clotting of blood?
Plasma
Red blood cells
White blood cells
Platelets
Which process is responsible for the movement of water in plants?
Diffusion
Osmosis
Transpiration pull
Translocation
Which of the following is a biodegradable substance?
Plastic
Polythene
Vegetable waste
Glass
