Biology some mock questions

Cell wall

A structure found in plant cells but not in animal cells.

Muscle and nerve cell differences

They use different parts of the same DNA.

Oxygen in photosynthesis

Plants take in carbon dioxide and release oxygen during photosynthesis.

Mitochondria function

To convert energy in food into usable ATP.

Order of organization in living organisms

The correct order from simplest to most complex is Cell → Tissue → Organ → Organ system.

Natural selection

Occurs when some individuals are better adapted to the environment.

Result of mitosis

Produces two genetically identical cells.

mRNA role

Carries the genetic code from the nucleus to the ribosome.

DNA mutation effect

May cause a change in protein structure.

Punnett square representation

Each box represents a possible genotype of offspring.

Active transport

A process that requires energy input.

Biodiversity

Describes the number of species in an ecosystem.

Role of decomposers

They break down dead organisms.

Producers removal from food web

If all producers were removed, all other organisms would be affected.

Purpose of meiosis

To reduce the chromosome number for sexual reproduction.

Examples of prokaryotic organisms

Bacteria and Archaea are examples.