Biology MCQs

Attempt Biology MCQs from the past papers of PPSC, KPPSC, SPSC, BPSC, and NTS.

Score: 0 / 25

Incorrect As: 0

Q 51: Photosynthesis occurs in:

A) Chloroplast
B) Endoplasmic reticulum
C) Golgi body
D) Nucleus

Q 52: Which gas do plants absorb from the atmosphere during photosynthesis?

A) Oxygen
B) Nitrogen
C) Carbon Dioxide
D) Helium

Q 53: Photosynthesis in plants takes place faster in:

A) Yellow light
B) Red light
C) Darkness
D) White light

Q 54: In the atmosphere carbon dioxide is removed by:

A) Deforestation
B) Afforestation
C) Photosynthesis
D) None of these

Q 55: A process that is almost reverse of photosynthesis:

A) Digestion
B) Respiration
C) Excretion
D) None of these

Q 56: Carbohydrates are stored in plants and animals in the following respective form:

A) Starch and Glycogen
B) Cellulose and Glucose
C) Starch and Glucose
D) None of these

Q 57: In the plant cells which reactions occur in the stroma of the chloroplasts?

A) Calvin cycle
B) Fermentation
C) Krebs cycle
D) Decarboxylotion

Q 58: A part of a plant is not green due to:

A) Leucoplast
B) Chloroplasts
C) Chromoplast
D) None of these

Q 59: Which part of a plant produces Pollen Grain in a flower?

A) Carpel
B) Anther
C) Ovary
D) Ovule

Q 60: Parthenocarpy is the production of fruit which makes the fruit:

A) Full of seeds
B) Seedless
C) Bitter
D) Waterless

Q 61: After fertilization, a fruit develops from which part of the plant?

A) Ovule Wall
B) Anther
C) Ovary
D) Sepals

Q 62: Which of the following flower called Queen of Flower?

A) Tulip
B) Rose
C) Lilly
D) None of these

Q 63: Tomato belongs to which part of the plant?

A) Stem
B) Root
C) Fruit
D) Leave

Q 64: Which mushroom is not edible?

A) Straw Mushrooms
B) Oyster Mushrooms
C) Amanita Phalloides
D) None of these

Q 65: Which of the following is largest ecosystem in the word?

A) Forest
B) River
C) Ocean
D) Land

Q 66: Biome is a community of:

A) Animals
B) Plants
C) Both A & B
D) None of these

Q 67: According to the modern system of taxonomy, living organisms have been classified into?

A) Five Kingdoms
B) Two Kingdoms
C) Three Kingdoms
D) Four Kingdoms

Q 68: The process by which a caterpillar transforms into a butterfly is called:

A) Metamorphosis
B) Osmosis
C) Fermentation
D) Sedimentation

Q 69: Insects responsible for transmitting diseases are called:

A) Drones
B) Vectors
C) Hybrids
D) None of these

Q 70: Bees have to collect nectar from flowers to make 1 pound of honey combine.

A) 1 Million
B) 5 Million
C) 2 Million
D) None of these

Q 71: Primary producers are:

A) Plants
B) Fungi
C) Algae
D) Protozoa

Q 72: Bacteria is:

A) Multi-cellular organism
B) Virus
C) Fungi
D) None of these

Q 73: Gerbil is a kind of:

A) Kangaroo
B) Rodent
C) Elephant
D) Deer

Q 74: Bats used for path at night by:

A) Ultraviolet
B) Ultrasonic
C) Supersonic
D) None of these

Q 75: Which of the following animals is not a "Ruminant"?

A) Cow
B) Goat
C) Horse
D) Giraffe