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Fundamental Unit of Life (Part II)

Description: Fundamental unit of life (Part II) Cells and Tissues
Number of Questions: 35
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Tags: Fundamental unit of life (Part II) Cells and Tissues
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Which of the following structures carries genetic information to the sites of protein synthesis?

  1. RNA

  2. DNA

  3. Nucleus

  4. Nucleolus


Correct Option: A

What is the number of chromosomes present in a normal human cell?

  1. 43 pairs

  2. 42 pairs

  3. 23 pairs

  4. 22 pairs


Correct Option: C

Which of the following structures helps in protein synthesis in the cytoplasm?

  1. Ribosomes

  2. DNA

  3. Lysosomes

  4. SER


Correct Option: A

Which of the following is not an organelle?

  1. E.R.

  2. Chlorophyll

  3. Ribosome

  4. Mitochondria


Correct Option: B

Which of the following statements is/are true for both prokaryotes and eukaryotes?

  1. They both have DNA as their genetic material.

  2. They both have ribosomes.

  3. Both (A) and (B)

  4. Only (A)


Correct Option: C

Which of these processes is not associated with the development of a plant?

  1. Cell enlargement

  2. Cell movement

  3. Cell division

  4. Cell differentiation


Correct Option: B

The membrane which surrounds all the organelle is known as

  1. nuclear membrane

  2. cell membrane

  3. thalkaloid membrane

  4. cell wall


Correct Option: B

The colour pigments of flowers and fruits are associated with

  1. chloroplast

  2. chromoplasts

  3. leucoplasts

  4. none of these


Correct Option: B

In which year did Robert Hook discover cells?

  1. 1657

  2. 1665

  3. 1676

  4. 1685


Correct Option: B

Which of the following cells can be seen with the naked eye?

  1. Egg cell of a hen

  2. Cells of an elephant's brain

  3. Neurons of a giant squid

  4. No single cell can be seen with a naked eye.


Correct Option: A

In which structure did Robert Brown see the cell nucleus?

  1. Cells of orchid root

  2. Pollen grains

  3. White blood cells of humans

  4. Red blood cells of humans


Correct Option: A

All cells possess

  1. nucleus

  2. membrane

  3. cell wall

  4. mitochondria


Correct Option: B

Which of these cell parts is not found in a plant cell?

  1. Cell wall

  2. Centrioles

  3. Chloroplasts

  4. Vacuoles


Correct Option: B

Which of the following cells is likely to posses the highest number of mitochondria?

  1. Hair cell

  2. Skin cell

  3. Red blood cell

  4. Muscle cell


Correct Option: D

Which of the following terms best describes the process of cell eating?

  1. Endocytosis

  2. Exocytosis

  3. Pinnocytosis

  4. Osmosis


Correct Option: A

According to cell theory,

  1. all cells have cell walls

  2. cells can arise spontaneously

  3. cell is the basic structural unit of living things

  4. all cells have a nucleus


Correct Option: C

Branch of science which deals with the study of cell and its structure is called

  1. cytology

  2. oncology

  3. radiology

  4. microbiology


Correct Option: A

Amoeba shows

  1. tissue level of organization

  2. organ level of organization

  3. organ system level of organization

  4. cellular level of organization


Correct Option: D

Which one of the following techniques has helped to solve the mysteries involved in murders, robberies etc?

  1. DNA fingerprinting

  2. Computer technology

  3. Gene splicing

  4. Gene cloning


Correct Option: A

Which of the following organisms are called prokaryotes?

  1. Green algae, brown algae and red algae

  2. Yeasts and other fungi

  3. Mycoplasma, bacteria and cynobacteria

  4. Bacteria, yeast and virus


Correct Option: C

Which cell in human body does not grow in number after a certain age?

  1. Nerve cell

  2. Blood cell

  3. Muscle cell

  4. Bone cell


Correct Option: A

What is the main factor in the growth of a small plant into a tree?

  1. Increase in cell size

  2. Increase in cell number

  3. Increase in cell diameter

  4. Increase in cell height


Correct Option: B

Centrioles become active at the time of

  1. cell movement

  2. cell death

  3. cell division

  4. cell respiration


Correct Option: C

In which of the following cells are plastids not found?

  1. Leaf cell

  2. Stem cell

  3. Root cell

  4. Flower cell


Correct Option: C

Which of the following does not have a basic cell structure?

  1. Neuron

  2. Virus

  3. Amoeba

  4. Fungi


Correct Option: B

Cell sap encloses

  1. air

  2. cytoplasm

  3. water

  4. water with salt and sugar


Correct Option: D

Which structure in unicellular animals performs a similar function to that of the digestive system in multicellular animals?

  1. Nucleus

  2. Contractile vacuole

  3. Food vacuole

  4. Ribosomes


Correct Option: C

Which cells are likely to show much lysosomal activity?

  1. Damaged cells

  2. Gland cell

  3. Hair cell

  4. Skin cell


Correct Option: A

Which of the following organelles can perform the function of excretion?

  1. Lysosomes

  2. Cell membrane

  3. Vacuoles

  4. Ribosomes


Correct Option: A

Viruses show the sign of life only after entering the cells of living organisms because they have only

  1. nucleus

  2. cell membrane

  3. nucleic acid

  4. cytoplasm


Correct Option: C

Which of the following organisms has the smallest cell?

  1. Yeast

  2. Fungus

  3. Protozoa

  4. Bacterium


Correct Option: D

What makes up 'Protoplasm'?

  1. Cytoplasm + Nucleusplasm

  2. Cytoplasm + Organelles - Cytoplasm

  3. Cytoplasm - Organelles

  4. Cytoplasm - Nucleus + Organelles


Correct Option: A

When grapes are kept in distilled water, they _______.

  1. swell

  2. shrink

  3. jump

  4. remain unaffected


Correct Option: A

Which feature is common in both living and non living?

  1. Reproduction

  2. Nutrition

  3. Excretion

  4. Movement


Correct Option: D

Genetic material is present in prokaryotes as _______.

  1. few chromosomes

  2. many chromosomes

  3. no chromosomes

  4. single chromosome


Correct Option: D
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