CAX A2 Biology Unit 4 multiple choice questions from exams

Name of the part labelled Y.

• Cytoplasm

• Matrix

• Stroma

• Tonoplast

Name of the part labelled Y.

• Lysosme

• Nucuolous

• Nucleus

• Starch grain

What is the name of the ion found in the porphyrin ring.

• calcium

• magnesium

• nitrate

• phosphate

The enzyme RUBISCO catalyses

• step 1

• step 2

• step 3

• step 4

Reduced NADP and ATP are needed in

• step 1

• step 2

• step 3

• step 4

How many of these carbohydrates are monosaccharides ?

Fructose

a glucose

b glucose

Sucrose

• 1

• 2

• 3

• 4

How many of these polysaccharides found in plants?

•  amylopectin •  amylose •  cellulose •  glycogen.

• 1

• 2

• 3

• 4

Molecule P is.....

• GALP

• Hydrogen

• Oxygen

• Water

Molecule Q & R are....

• ATP & carbon dioxide

• ATP & oxidised NADP

• carbon dioxide & reduced NADP

• reduced NADP & ATP

Correctly identify the products P, Q and R made from one molecule of water.

• electrons, hydrogen ions, oxygen atom

• electrons, hydrogen molecule, oxygen molecule

• oxygen atom, electrons, hydrogen ions

• oxygen molecule, hydrogen molecule, electrons