Energy Organelles and Cytoskeleton

Both mitochondria and chloroplast are maternally inherited. Some plants develop resistance to atrazine herbicide through a mutation of a gene located in the chloroplast. If male plants without any such herbicide resistance are crossed with an atrazine resistant female plant, what will be the resistance level of offspring plants? A) All offspring will be resistant. B) None of them will be resistant. C) Half will be resistant and half susceptible. D) Only the female plants will be resistant and not the male plants. E) Only the male plants will be resistant and not the female.

A) All offspring will be resistant.

Which of the following action facilitated by microfilaments, a plant cell will not be able to do? A) Movement of chromosomes during cell division B) Transport of vesicles along microtubules C) Cleavage furrow (pinching in middle of cell) formation during cell division D) Cytoplasmic streaming of chloroplasts E) Synthesis of carbohydrates and essential amino acids

C) Cleavage furrow (pinching in middle of cell) formation during cell division

Which of the following structures are important for providing energy for cytoplasmic functions in a plant? A) microtubules B) chloroplast C) mitochondrion D) lysosome E) nucleus

C) mitochondrion

How does the double membrane structure of mitochondrion help in its function to make ATP? A) Stopping any molecules to go through mitochondrion B) Allowing only small molecules to go through the double membrane C) Controlling only polar molecules to go through D) Maintaining conditions within and between the two membranes to allow ATP synthesis E) Allowing only non-polar molecules to go through them

D) Maintaining conditions within and between the two membranes to allow ATP synthesis

Which of the following is not a common feature of both chloroplast and mitochondrion? A) Have their own DNA B) Make ATP C) Prokaryotic in nature D) Makes essential amino acids

D) Makes essential amino acids

We need to consume essential amino acids in our diet because we do not have ______________ that make essential amino acids. A) Mitochondria B) Ribosomes C) Lysosomes D) Plastids E) Glyoxysomes

D) Plastids

What types of symptoms would show in an individual with a defective mitochondrial genes?

lack of energy

Give an example of how cytoskeletal elements helps in sexual reproduction of animals.

sperm movement