Explanation

Rice is rich in carbohydrates and provides about 360 calories per 100 grams.

It is a major energy source in diets around the world due to its high carbohydrate content.

Explanation

The epidermis is the outermost protective layer of plants.

It prevents water loss and protects against mechanical injury and infection.

Explanation

Colour of the plants is green due to the presence of Chlorophyll۔

Chlorophyll absorbs certain wavelengths of light within the visible light spectrum.

Chlorophyll is the green color pigment which absorbs wavelength from sunlight.

Since the synthesis of food occurs in the presence of sunlight, it is called photosynthesis. 

Explanation

The correct pathway of a nerve impulse is Receptors → CNS → Effectors. 

Receptors:

• These are specialized cells that detect stimuli (changes in the environment) like light, temperature, or pressure.
• They convert these stimuli into electrical signals.

CNS (Central Nervous System):

• This includes the brain and spinal cord.
• The sensory neurons transmit the electrical signals from the receptors to the CNS.
• In the CNS, the information is processed and a decision is made about how to respond.

Effectors:

• These are the organs or muscles that carry out the response.
• The CNS sends motor neurons to the effectors, which then trigger the muscle to contract or gland to secrete a substance. 

Explanation

Lipid synthesis is a function primarily carried out by the Smooth Endoplasmic Reticulum (SER) 

Intracellular digestion: Breaking down material ingested by the cell

Removal of waste: Digesting and removing cellular waste products 

Autophagy: Breaking down and recycling old or damaged cell components 

Explanation

A normal human has 23 linkage groups. 

A linkage group is defined as all the genes located on a single chromosome that tend to be inherited together.

The number of linkage groups in an organism is equal to its haploid number of chromosomes (n).

Humans have 46 total chromosomes, which are organized into 23 pairs (the diploid number, 2n).

The haploid number (n) in humans is 23, meaning there are 23 distinct types of chromosomes.

Therefore, there are 23 linkage groups in a normal human, corresponding to the 22 pairs of autosomes and one pair of sex chromosomes (XX in females or XY in males, considered as one linkage group in the general "normal human" context). 

Explanation

Nissl granules are specialized structures in a neuron formed by the modification of the Ribosome & Rough ER

Nissl's granules are groups of ribosomes.

They are found in the neuron’s cytoplasm.

They are involved in protein synthesis.

They essential for neuron growth and repair.

Explanation

During crossing over in meiosis I, homologous chromosomes exchange different segments, leading to genetic recombination and increased variation.

Explanation

Explanation

Central chemoreceptors that monitor the levels of CO₂ in the blood are primarily located in the medulla oblongata. 

Specifically, they are found on the ventrolateral surface of the medulla oblongata in areas such as the retrotrapezoid nucleus (RTN) and the medullary raphe.

These receptors are susceptible to changes in the hydrogen ion concentration (pH) of the cerebrospinal fluid (CSF), which is directly and rapidly influenced by arterial CO₂ levels, as CO₂ can easily cross the blood-brain barrier.