Form 3 Integrated Science

Why do cells have chloroplast?

• 1. To contain chlorophyll.

• 1. To assist respiration

• To regulate the functions of the cell

• 1. To keep the cytoplasm contained

Diffusion occurs when molecules move

• 1. From lower concentration to higher concentration

• 1. From higher concentration to lower concentration through a membrane

• 1. From higher concentration to lower concentration

• 1. When energy is used

Which of the following is a function of the white blood cells?

• 1. Transporting of oxygen.

• 1. Transporting carbon dioxide.

• 1. Production of antibodies.

• 1. Formation of clots.

By which process does water pass from the ocean to the atmosphere?

• 1. condensation

• 1. evaporation 

• 1. precipitation

• 1. respiration

Most veins contain cup-like folds known as ______, which prevent backflow of the blood.

• 1. gauges

• 1. taps

• 1. regulators

• 1. valves

The diagram shows the movement of particles between two solutions.

The process being illustrated in the diagram above is 

• 1. absorption

• 1. dialysis

• 1. diffusion 

• 1. osmosis

Which of the following blood groups has no antigen and, as result, can be used in transfusion to any person?

• A

• B

• AB

• O

What is the function of the nucleus?

• 1. Storing food, water, and waste

• 1. Holding the cell together 

• 1. Controlling cell activity  

• 1. Absorbing light energy.

Iodine in potassium iodide solution was used to carry out a food test. The food group being tested was

• 1. fat and oils

• 1. protein

• 1. starch  

• 1. sugar

Which of the following is NOT found in animal cells:

• 1. vacuole

• 1. mitochondria

• 1. chloroplast

• 1. nucleus