Home
Current Affairs January 2024

What is the correct answer?

4

In plant cell vacuole contains

A. water

B. cytoplasm

C. air

D. water and dissolved substance

Correct Answer :

D. water and dissolved substance


Related Questions

What is the correct answer?

4

Cells having large nuclei in proportion of cytoplasm are perhaps

A. dying

B. dehydrated

C. active

D. dividing

What is the correct answer?

4

Unstained living tissues of a cell can be examined by

A. phase contrast microscope

B. electron microscope

C. light microscope

D. autoradiography

What is the correct answer?

4

Cell membranes are composed mainly of

A. sugar and proteins

B. lipids and proteins

C. starch and lipids

D. sugar and lipids

What is the correct answer?

4

"The substance of cells is living " was firs suggested by

A. Purkinje

B. Lamarck

C. Dutrochet

D. Dujardin

What is the correct answer?

4

The nucleus of a plant cell was discovered by

A. Robert Brown

B. Huxley

C. Virchow

D. Hammerling

What is the correct answer?

4

The "chromosome theory of heredity" was given by

A. Sutton and Bateson

B. Bateson and Punnett

C. Sutton and Boveri

D. Waldeyer and Hofmeister

What is the correct answer?

4

Sequence of nucleotides in a DNA strand is CAT TAG CAT CAT GAC, what will be the base sequence in complementary strand of RNA?

A. GUA AUC GUA GUA CUG

B. GTA ATC GAT GTA CTA

C. TAG ATG ATG GUA CUG

D. GTA ATG GTA GAT CTA

What is the correct answer?

4

One of the following is a single-membraned structure:

A. Chloroplast

B. Nucleus

C. Mitochondria

D. Lysosome

What is the correct answer?

4

The maximum magnification possible with electron microscope is

A. 200 times

B. 2000 times

C. 20,000 times

D. 200,000 times

What is the correct answer?

4

The unit of heredity is

A. gene

B. centromere

C. telomere

D. chromosome

What is the correct answer?

4

Granal thylakoids occur in a

A. chloroplast

B. mitochondrion

C. microtubules

D. crista

What is the correct answer?

4

Park and Biggins receive credit for discovery of

A. oxisomes

B. quantosomes

C. lysosomes

D. microsomes

What is the correct answer?

4

Chemical constitution of nucleus is

A. DNA and proteins

B. RNA and proteins

C. DNA, RNA and proteins

D. RNA arid DNA

What is the correct answer?

4

The organelles for fat synthesis are

A. glyoxisomes

B. lomasomes

C. spherosomes

D. lysosomes

What is the correct answer?

4

Another name for ligase is

A. joining enzyme

B. RNA polymerase

C. nuclease

D. none of these

What is the correct answer?

4

Extranuclear DNA is found in

A. chloroplast

B. ribosomes

C. endoplasmatic reticulum

D. golgi apparatus

What is the correct answer?

4

The cells were first seen microscopically by

A. Scheiden

B. Schwann

C. Leeuwenhock

D. Robert Hook

What is the correct answer?

4

In the mitochondria, cytochromes are localised in

A. matrix

B. outer membrane

C. inner membrane

D. none of these

What is the correct answer?

4

The discoverers of electron microscope are

A. Huxley and Virchow

B. Leeuwenhok and Hooke

C. Knoll and Ruska

D. Farmer and Moore

What is the correct answer?

4

Nitrogenous bases of RNA are

A. uracil and adenine

B. thymine and uracil

C. uracil, adenine, guanine and cytosine

D. thymine, adenine, guanine and cytosine

What is the correct answer?

4

In plant cell vacuole contains

A. water

B. cytoplasm

C. air

D. water and dissolved substance

What is the correct answer?

4

Physical basis of life is

A. nucleus

B. cell

C. protoplasm

D. nutrition

What is the correct answer?

4

In electron microscope the source of light used is

A. sunlight

B. UV-light

C. far red

D. beam of electrons

What is the correct answer?

4

The largest cell organelle is

A. nucleus

B. endoplasmic reticulum

C. chloroplast

D. mitochondria

What is the correct answer?

4

Mitochondria were first observed in striated muscle cells by

A. Benda

B. Kolliker

C. Altmann

D. Robert Hooke

What is the correct answer?

4

There are 46 chromosomes in humans, of which

A. any 23 chromosomes are from father and remaining from the mother

B. the first 11 pairs and 'X' are from the father and next 11 pairs and 'Y' from the mother

C. the first 11 pairs and 'X' from mother and remaining from father

D. out of each pair one is received from the father and the other from the mother

What is the correct answer?

4

Ribosomes are the centre of

A. respiration

B. photosynthesis

C. protein synthesis

D. fat synthesis

What is the correct answer?

4

Hydroly tic enzymes are abundant in

A. peroxisomes

B. microsomes

C. lysosome

D. lomasome

What is the correct answer?

4

Electron microscope has revealed the presence of

A. ribosomes

B. chromosomes

C. chloroplast

D. leucoplast

What is the correct answer?

4

The photosynthetic units are known as

A. dictyosomes

B. quantosomes

C. microsomes

D. ribosomes