Cell

What is the basic unit of life?

• Atom

• Cell

• DNA

• Molecules

Who first discovered the cell?

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Answer explanation

The invention of the microscope led to the discovery of the cell by Hooke. While looking at cork, Hooke observed box-shaped structures, which he called “cells” as they reminded him of the cells, or rooms, in monasteries. This discovery led to the development of the classical cell theory.

What organelle is responsible for breaking down and digesting things?

• Ribosome

• Peroxisome

• Lysosome

• Endoplasmic Reticullum

Answer explanation

A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.

What type of nucleic acid is in the picture

• DNA

• Thymine

• Adenine

• RNA

Answer explanation

Ribonucleic acid (abbreviated RNA) is a nucleic acid present in all living cells that has structural similarities to DNA. Unlike DNA, however, RNA is most often single-stranded.

The following are organelles can be found in animal cell EXCEPT one:

• lysosome

• nucleus

• centrioles

• chloroplast

Answer explanation

Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.

Also, it has its own dna.

Differentiate procaryotic and eucaryotic cells.