23 AUGUST 2021 CURRENT AFFAIRS QUIZ

Clearly defined nucleus, mitochondria in a large central vacuole and chloroplasts, indicate the group of organisms from

bacteria

plants

fungi

animals

TRUE ANSWER : ?
YOUR ANSWER : ?

Microtubules, motor proteins, and actin filaments are all part of

the cytoskeleton of eukaryotic cells

the mechanism of photosynthesis that occurs in chloroplasts

the process that moves small molecules across cell membranes

the rough ER (endoplasmic reticulum) in prokaryotic cells

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the best criterion for deciding whether a cell is prokaryotic or eukaryotic?

The cell has cytosol or not

DNA is present in the cell or not

The cell has a nucleus or not

The cell came from a single-celled or multicelled organism

TRUE ANSWER : ?
YOUR ANSWER : ?

Eukaryotic cells are more efficient than prokaryotes because their internal compartmentalization

reduces overall cell size

makes each compartment nutritionally independent of all others

allows for specialization through merging of different tasks

allows for specialization through the subdivision of particular tasks

TRUE ANSWER : ?
YOUR ANSWER : ?

In which of the following cell organelles, it is expected to find the biochemical reactions that harness energy from the breakdown of sugar molecules to synthesize large amounts of ATP?

Vesicles

Mitochondria

Plasma membrane

Lysosome

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following two organelles look most alike structurally?

Nucleus and vesicle

Golgi apparatus and smooth endoplasmic reticulum ER

Vacuole and cytoskeleton

Lysosome and chloroplast

TRUE ANSWER : ?
YOUR ANSWER : ?

In terms of basic cell structure, what do an elephant and an oak tree have in common?

They both have a cell nucleus

All of these

They both have mitochondria

They both are eukaryotes

TRUE ANSWER : ?
YOUR ANSWER : ?

The simplest way to differentiate a prokaryotic cell from a eukaryotic one is to

see if a nucleus is present

determine if the cell is an entire organism or not

look for a plasma membrane

check for the presence of DNA

TRUE ANSWER : ?
YOUR ANSWER : ?

The highly folded membranes found in such eukaryotic organelles as mitochondria and chloroplasts

help the cell against physical damage

increase the surface area where key chemical processes can occur

make it possible to package large amounts of DNA within the cell

assist with cell movement

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following cell organelles are expected to be associated with motor proteins?

Smooth ER

Vesicles

Plasma membrane

Chloroplasts

TRUE ANSWER : ?
YOUR ANSWER : ?