PLANT STRUCTURE QUIZ

A cell without cell wall is called

apoplast

symplast

none of these

protoplast

TRUE ANSWER : ?
YOUR ANSWER : ?

The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that

mitochondria are surrounded by a semi permeable membrane

the mitochondrial matrix is hypertonic to the cellular cytoplasm

the mitochondrial matrix is hypotonic to the cellular cytoplasm

mitochondria were derived from a symbiotic bacterium

TRUE ANSWER : ?
YOUR ANSWER : ?

Tonoplast is a membrane around

vacuole

mitochondria

cytoplasm

nucleus

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statements about the outer mitochondrial membrane is not true?

The outer membrane is about 50% lipid and 50% protein by weight

The outer membrane is impermeable to hydrogen ions

The outer membrane is highly permeable to substances of small molecular weight

The outer membrane contains porins

TRUE ANSWER : ?
YOUR ANSWER : ?

The cellular organelle associated with secretion is the

golgi complex

mitochondrion

ribosome

lysosome

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statements about mitochondrial proteins is true?

Mitochondrial proteins arise from other mitochondrial proteins

Some mitochondrial proteins are coded for and synthesized in the mitochondria and others

All mitochondrial proteins are coded for and synthesized in the mitochondria

All mitochondrial proteins are imported from the cytoplasm

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following elements is likely to form the least polar covalent bond with hydrogen?

Oxygen

Phosphorus

Carbon

Nitrogen

TRUE ANSWER : ?
YOUR ANSWER : ?

Cellular metabolism is an example of

a series of reactions that defy the second law of thermodynamics

a series of reactions occurring under standard conditions

steady-state metabolism

equilibrium metabolism

TRUE ANSWER : ?
YOUR ANSWER : ?

If the ester bonds of a triacylglycerol molecule's are broken then the kind of molecule, which would be soluble in water, is

glycerol

steroid

fatty acid

glycogen

TRUE ANSWER : ?
YOUR ANSWER : ?

Which part of a plant contains the male sex cell?

Stamen

Style

Ova

Pollen

TRUE ANSWER : ?
YOUR ANSWER : ?