Quiz of the night - 29 May

Which pair of structures are usually found in both plant and animal cells?

• (a) Cell membrane and nucleolus

• (b) Cell membrane and cell wall

• (c) Nucleolus and chloroplast

• (d) Nucleus and cell wall

Histamine is secreted by

• (a) mast cells

• (b) fibroblast

• (c) histocytes

• (d) melanocytes

Sprain is caused to excessive stretching of

• (a) Tendon

• (b) Ligament

• (c) Muscle

• (d) All of these

Smooth endoplasmic reticulum is well developed in the cells which synthesize

• (a) proteins

• (b) steorids

• (c) carbohydrates

• (d) all of these.

What is a limiting reactant?

• a) The reactant that is used up first and prevents more product from being made.

• b) The reactant that makes the product.

• c) The reactant that is used up last and prevents more product from being made

• d) The substance that is in excess that doesn’t get used up as a reactant.