Free Cell The Unit Of Life (Daily Quiz: 9) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

The figure below shows the structure of a mitochondrion with its four parts labelled A, B, C and D. Select the part correctly matched with its function.

(a) C (crista) – possesses single circular DNA molecule and ribosomes

(b) (D) (outer membrane) – gives rise to inner membrane by splitting

(c) B (inner membrane) – forms infoldings called cristae

(d) A (matrix) – major site for respiratory chain enzymes

Question-2

A cell organelle containing hydrolytic enzymes is

(a) ribosome

(b) lysosome

(c) microsome

(d) mesosome.

Question-3

Which is correct about cell theory given current status of our knowledge about cell structure?

(a) Cell theory does not hold good because all living beings (e.g., viruses) do not have cellular organisation.

(b) It needs modification due to discovery of subcellular structures like chloroplasts and mitochondria.

(c) Modified cell theory means that all living beings are composed of cells capable of reproducing.

(d) Cell theory means that all living objects consists of cells whether or not capable of reproducing.

Question-4

In which method of transport in plasma membrane does not require carrier molecule?

(a) Simple diffusion

(b) Active transport

(c) Facilitated diffusion

(d) $Na^{+} – K^{+}$ Pump

Question-5

Given below are some characters of a cell organelle. Identify the correct organelle which shows all the characters described above.

1. It is a membrane bound space found in the cytoplasm.
2. It is bound by a single membrane called tonoplast.
3. It contains water, sap, excretory products and other materials not useful to the cell.
4. It has higher concentration of sap than the cytoplasm.

(a) Lysosomes

(b) Golgi apparatus

(c) Endoplasmic reticulum

(d) Vacuoles