MIXED QUESTIONS
Which cell has a large central vacuole—plant or animal?
Plant cell
Which organelle controls all activities of the cell?
Nucleus
How many centimetres are there in 1 metre?
100cm
Which cell is adapted to carry oxygen in humans?
Red blood cell.
What type of force requires physical contact?
Contact force
What form of energy powers household appliances?
Electrical energy
Which organelle stores food, water, and waste?
Vacuole
Name the scientific device used to measure temperature.
Thermometer
Which specialized cell is long and helps carry electrical signals?
Nerve cell
Give one example of a non-contact force.
Gravity / Magnetic force / Electrostatic force.
Nucleus, ER, Vacuole, Mitochondria ( other answers which the teacher considers correct)
Which organelle helps in making proteins?
Ribosomes
Convert 2 kg into grams.
2000g
Which cell has tiny hair-like structures to move mucus in the respiratory tract?
Ciliated epithelial cell.
What do we call the total force acting on an object when all forces are combined?
Net force.
What type of energy conversion happens in a battery-powered torch? There are three energy conversions happening here
Chemical → Electrical → Light
Which organelle is the “powerhouse of the cell”?
Mitochondria
What does “precision” mean?
How close repeated measurements are to each other.
This cell has many mitochondria in the human body which allows you to run and play.
Muscle cell
If two forces act in opposite directions, how do you calculate the net force?
Subtract the smaller force from the larger.
List the three differences between plant and animal cell
Cell wall, vacuole size, chloroplast
Which part of the cell gives it shape and protects it?
Cell membrane (and cell wall in plants).
What system of units is used worldwide by scientists?
Standard International
An cell with the lots of special organelles for photosynthesis with a large vacuole
Palisade cell
What happens to an object when the net force is zero?
It stays at rest or continues moving at constant speed.