Practice MCQ Questions and answers on Biology-GK

In most plants and animals, the fluid filled sacs or cisternae of Golgi Bodies may vary from 3 to 7.

A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm.

Mitochondria are rods or filament like very small bodies present in the cytoplasm of all cells of plants and animals.

Lipid soluble can pass more easily.

The longest cell in the human body is the neuron. Neurons are cells of the nervous system that process and transmit information throughout the body.

Smooth Endoplasmic Reticulumdoes not contain ribosomes on its surface for which it is regarded as smooth. So, proteins cannotbe synthesised by SER provided protein synthesis is the primary task of ribosomes.

Nucleous is called the factory of ribosomes.

The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called cristae.

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.

The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called cristae.