Biology - MOST IMPORTANT RRB Ministerial & Isolated Categories Previous Year Questions

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It is a passive process involving diffusion.

It happens due to capillary action.

It occurs due to gravitational pull.

It is an active process requiring energy.

Large vacuoles and thick walls

Dense cytoplasm, prominent nuclei and no vacuoles

Presence of chloroplasts and stored food

Dead cells with lignified walls

The presence of chloroplasts

A rigid cell wall

A large central vacuole

The presence of meristematic tissues

Thin and pointed for support

Rough and dry for protection

Thick and stores egg cells

Sticky to catch pollen grains

Chest cavity shrinks.

Ribs move down and diaphragm becomes dome-shaped.

Ribs move up and diaphragm flattens.

Ribs remain still and diaphragm contracts upward.

DNA replication

Controlling cell division

Protein synthesis

Providing turgidity and rigidity to the cell

It multiplies the number of chromosomes.

It doubles the DNA content.

It eliminates harmful variations from DNA.

It reduces chromosome number by half in germ cells.

Areolar tissue

Cartilage

Ligament

Tendon

acetic acid and water

methane and oxygen

ethanol and carbon dioxide

glucose and nitrogen

Produces four haploid daughter cells

Occurs exclusively during gamete formation

Produces two diploid daughter cells identical to the parent cell

Reduces the chromosome number to half of the parent cell

Skeletal muscles

Cardiac muscles

Smooth muscles

Sclerenchyma

Nucleus

Cytoplasm

Golgi body

Ribosome

Starch

Sucrose

Glucose

Cellulose

Stamens and pistil

Ovary and stem

Roots and leaves

Petals and sepals

Pituitary

Pancreas

Thyroid

Adrenal

have smaller vacuoles

lack a plasma membrane

lack a rigid cell wall to resist internal pressure

absorb less water

Transport of oxygen

Contraction and movement

Coordination and control

Covering and protection

Dead cells help in active locomotion.

Dead cells help in reproduction.

Plants are stationary and need support to remain upright.

Plants require more energy for movement.

root, fruit

shoot, root

fruit, seed

seed, shoot