Last updated on December 14th, 2023 at 08:36 am
Transportation in Animals and Plants Class 7 MCQ
Multiple-choice questions (MCQs) related to the circulatory system, excretory system, and plant transport systems, along with their answers:
Which pigment gives blood its red color?
a) Hemoglobin
b) Melanin
c) Chlorophyll
d) Myoglobin
Answer: a) Hemoglobin
The circulatory system consists of:
a) Heart and lungs
b) Heart and blood vessels
c) Lungs and arteries
d) Heart and kidneys
Answer: b) Heart and blood vessels
The excretory system in humans includes:
a) Lungs, liver, and skin
b) Kidneys, ureters, and urinary bladder
c) Stomach, small intestine, and large intestine
d) Heart, lungs, and kidneys
Answer: b) Kidneys, ureters, and urinary bladder
Which organs in the excretory system remove waste products from the blood?
a) Lungs
b) Liver
c) Kidneys
d) Heart
Answer: c) Kidneys
What waste substance do fish primarily excrete?
a) Urea
b) Carbon dioxide
c) Uric acid
d) Ammonia
Answer: d) Ammonia
Birds, insects, and lizards excrete waste in the form of:
a) Urea
b) Carbon dioxide
c) Uric acid
d) Ammonia
Answer: c) Uric acid
Which vascular tissue in plants is responsible for transporting water and minerals from roots to the entire plant?
a) Phloem
b) Epidermis
c) Xylem
d) Stomata
Answer: c) Xylem
What is the main function of arteries in the human body?
a) Carry blood away from the heart
b) Carry blood to the heart
c) Carry oxygen to the lungs
d) Carry waste products to the kidneys
Answer: a) Carry blood away from the heart
What is the average heart rate in an adult human?
a) 40-50 times per minute
b) 60-70 times per minute
c) 70-80 times per minute
d) 90-100 times per minute
Answer: c) 70-80 times per minute
In plants, what process is responsible for the loss of water vapor through stomata?
a) Osmosis
b) Photosynthesis
c) Transpiration
d) Respiration
Answer: c) Transpiration
Which part of the circulatory system carries blood from all parts of the body back to the heart?
a) Veins
b) Arteries
c) Capillaries
d) Aorta
Answer: a) Veins
What do plants absorb from the soil through their roots?
a) Carbon dioxide
b) Water and mineral nutrients
c) Sunlight
d) Oxygen
Answer: b) Water and mineral nutrients
Which blood component is responsible for carrying oxygen to cells and carbon dioxide away from cells?
a) Platelets
b) White Blood Cells (WBC)
c) Red Blood Cells (RBC)
d) Plasma
Answer: c) Red Blood Cells (RBC)
The vascular tissue responsible for transporting food to various parts of the plant is called:
a) Xylem
b) Epidermis
c) Phloem
d) Stomata
Answer: c) Phloem
