PLANT STRUCTURE QUIZ

A cell without cell wall is called

apoplast

symplast

none of these

protoplast

TRUE ANSWER : ?
YOUR ANSWER : ?

Tonoplast is a membrane around

cytoplasm

mitochondria

nucleus

vacuole

TRUE ANSWER : ?
YOUR ANSWER : ?

Lysosomes are associated with

photosynthesis

digestion

respiration

storage

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following functional groups would make a carbon-based compound the least polar?

Phosphate

Carboxyl

Methyl

Amino

TRUE ANSWER : ?
YOUR ANSWER : ?

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

The outer membrane is impermeable to hydrogen ions

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

The outer membrane contains porins

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

TRUE ANSWER : ?
YOUR ANSWER : ?

Which molecule serves as a carrier of fatty acids in mitochondria?

Acetyl-CoA

Malonyl-CoA

Dolichol

Carnitine

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria?

Both strongly resemble prokaryotes, especially in size

Both have their own DNA

Both can live and function independently of the cell

Both have their own ribosomes

TRUE ANSWER : ?
YOUR ANSWER : ?

If complex III were incorporated into an artificial lipid vesicle in order to demonstrate it's proton translocating ability in isolation, which of the following would be an appropriate electron donor?

Cytochrome c red

Cytochrome c peroxidase

Ubiquinol (UQH2)

Cytochrome c oxidase

TRUE ANSWER : ?
YOUR ANSWER : ?

Both plant and animal cell possess

chloroplast

central vacuoles

mitochondria

cell walls

TRUE ANSWER : ?
YOUR ANSWER : ?

"The universe tends towards maximum disorder" is stated by

second law of thermodynamics

third law of thermodynamics

None of these

first law of thermodynamics

TRUE ANSWER : ?
YOUR ANSWER : ?