The optimum pH for the enzyme arginase is which of the following?

PMC Sample 2
Biology
Enzymes
Elimination Tool:

Below the point at which the cotyledons are attached, the embryo axis is called _______.

NTS 2016 SMBBMC
Biology
Kingdom Plantae
Elimination Tool:

Which is a feature of malignant tumor?

Smooth endoplasmic reticulum is responsible for the metabolism of:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

Asexual offsprings can be produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

An individual has an additional sex chromosome. Which syndrome does he have?

NUMS 2014
Biology
Chromosomes and DNA
Elimination Tool:

A structure formed by groups of similar cells organized into loose sheetsor bundles performing similar functions is called as:

The cells which play a very important role in developing immunity are:

PMC 2020
Biology
Transport
Elimination Tool:

The pH at which the activity of pancreatic lipase enzyme is maximum is:

NUMS 2019 Cancelled
Biology
Enzymes
Elimination Tool:

Four plants are present in different environmental conditions. Plant A is present in a warm climate with continuous rainfall, plant B is present in a cool forest, plant C is present in a warm climate with little breeze, while plant D is present in a warm climate with high wind speed. Which one of the above plants will have the highest rate of transpiration?

NUMS Mock 2
Biology
Gaseous Exchange

Optimum temperature for enzymes of human body is:

NUMS 2018
Biology
Enzymes
Elimination Tool:

Change in frequency of alleles that occurs by chance Is called as:

UHS 2019
Biology
Evolution
Elimination Tool:

Central dogma is

The ability of an individual to pass on its phenotype to future generations is known as:

NUMS Mock 1
Biology
Variation and Genetics

Transfer of genetic material from one cell to another that can alter the genetic makeup of recipient cell is called

There are 3 stages of HIV infection, which sequence is correct

PMC Sample 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Identify the wrong statements.

(a) The substrate binds to active site of enzyme and not fitting into active site

(b) The binding of substrate induces the enzyme to alter its shape

(c) Chemical bonds of substrate break down not to form new enzyme-product complex

(d) The enzyme releases the products of the reaction and runs through catalytic cycle once again

NUMS 2019 Reconduct
Biology
Enzymes
Elimination Tool:

Class Elasmobranchi have an outer covering of?

NTS 2015 DUHS and JSMU
Biology
Kingdom Animalia
Elimination Tool:

The only promoter of leaf senescence in the following plant hormones is?

PMC Sample 3
Biology
Growth and Development
Elimination Tool:

Glucose → 2 pyruvic acid + 2H2O

2ADP + 2Pi → 2 ATP

2NAD + 4H → 2NADH + 2H+

These three reactions collectively constitute ______.

NTS 2012
Biology
Bioenergetics
Elimination Tool:

The autonomic nervous system controls all of the following activities except:

NUMS Mock 1
Biology
Coordination and Control

Of the following which one is not the characteristic of Kingdom Animalia.

Which type of mucosa cells secrete pepsinogen?

NUMS 2014
Biology
Nutrition
Elimination Tool:

Sertoli cells

Skeleton of arms and legs is:

NUMS 2018
Biology
Support and Movement
Elimination Tool:

Fetus is human embryo from the beginning of which of the following?

PMC Sample 2
Biology
Growth and Development
Elimination Tool:

Resolution power of a compound microscope is

While working in a laboratory, before studying a sample under the microscope, it was immersed in a dye solution to obtain ______.

NUMS Mock 1
Biology
Biology and its Major Fields of Specialization

A Dutch scientist firstly observed very small creatures in

PMC Practice 6
Biology
Kingdom Prokaryote
Elimination Tool:

Transgenic plants are produced when foreign genes are introduced into

Gametes in animals are produced by:

PMC 2021 Tested
Biology
Cell Cycle
Elimination Tool:

An association between two organisms benefiting both is called

UHS 2010
Biology
Kingdom Fungi
Elimination Tool:

Syphilis is caused by:

NUMS 2018
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Fibers of the extracellular matrix are attached to ______ in the plasma membrane:

NUMS 2020
Biology
Cell Structure and Function
Elimination Tool:

Germ cells give rise to:

NTS 2012
Biology
Growth and Development
Elimination Tool:

______ occurs because natural selection gives some alleles a better chance of survival than others:

PMC 2020
Biology
Evolution
Elimination Tool:

When were bacteriophages discovered by Twort?

PMC Practice 5
Biology
Kingdom Prokaryote
Elimination Tool:

Gaseous exchange through the skin is known as ______ respiration.

Exchange of segments between homologous chromosomes is called:

UHS 2012
Biology
Cell Cycle
Elimination Tool:

The phase of mitosis in which sister chromatids move towards opposite poles:

UHS 2019
Biology
Cell Cycle
Elimination Tool:

Muscular tube that passes through pharynx and joins stomach is:

NUMS Mock 1
Biology
Nutrition

HIV is a:

NUMS Mock 3
Biology
Bio-diversity | Variety of Life

All of the followings are the effects of red light on plant, EXCEPT:

NTS 2016 SMBBMC
Biology
Growth and Development
Elimination Tool:

Thick, waxy & leathery cuticle around leaves is present in

Which of the following fungi is utilized in the baking industry?

NTS 2011
Biology
Kingdom Fungi
Elimination Tool:

The productivity of aquatic ecosystem is determined by:

NUMS 2016
Biology
Man and His Environment
Elimination Tool:

Which part of the brain regulates body temperature?

NTS 2016 SMBBMC
Biology
Homeostasis
Elimination Tool:

Analogous organs show:

NUMS 2020
Biology
Evolution
Elimination Tool:

Cellulose is the major component of

Typical symptoms like enlarged breasts and small testis in male are attributed to:

UHS 2015
Biology
Growth and Development
Elimination Tool:

Which one of the following is made up of radioactively labelled nucleotides?

UHS 2015
Biology
Biotechnology
Elimination Tool:

The structural and functional unit of the lungs is:

PMC Practice 2
Biology
Gaseous Exchange
Elimination Tool:

In animals coordination is achieved by means of

Terrestrial animals like kangaroo rat survive even without drinking water since

Q.11 In cocci, three plane division result in formation of sarcine which is a

During breathing air from Pharynx enters to:

UHS 2018
Biology
Gaseous Exchange
Elimination Tool:

In enzymatic mechanism, the substrate bind to the enzyme active site to produce?

PMC Practice 3
Biology
Enzymes
Elimination Tool:

Which step causes activation of catalytic site of an enzyme?

Which of the following is NOT a viral disease?

NTS 2018
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Number of bones in the skull:

NUMS 2016
Biology
Support and Movement
Elimination Tool:

FADH2 is produced during which step of Krebs cycle?

NUMS 2015
Biology
Bioenergetics
Elimination Tool:

What type of atom is the carbon atom?

NUMS Mock 2
Biology
Biological Molecules

Which of the statement about cell membrane is not true?

Carbohydrates, fats & proteins are essential for:

The structure of a fibrous protein comprises of polypeptide chains in the form of:

NUMS Mock 2
Biology
Biological Molecules

Which hormone is chemically a steroid?

NUMS 2020
Biology
Coordination and Control
Elimination Tool:

The long chains of HIV-proteins are cut down by proteases enzyme of ______.

PMC Sample 2
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Which of the following diseases is sexually transmitted?

NUMS Mock 1
Biology
Bio-diversity | Variety of Life

Which of the following has the ability to develop ester linkage with the OH group of Pentose sugar?

NUMS 2017
Biology
Biological Molecules
Elimination Tool:

Visible light used in photosynthesis ranges from:

E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is:

Of the following which one is not included in Proterostomes?

The cell membrane of a bacterial cell often invaginates to produce membranous structures referred to as:

NUMS 2017
Biology
Kingdom Prokaryote
Elimination Tool:

The feeding stage of slime mold is a

UHS 2010
Biology
Kingdom Protista
Elimination Tool:

Which of the following is not correct for food web?

NUMS 2019 Cancelled
Biology
Man and His Environment
Elimination Tool:

Cyanobacteria resemble photosynthetic eukaryotes because they have:

PMC 2021 Tested
Biology
Kingdom Protista
Elimination Tool:

Binomial nomenclature was proposed for the first time by:

NTS 2010
Biology
Bio-diversity | Variety of Life
Elimination Tool:

Archaeopteryx is a connecting link between:

NUMS 2014
Biology
Kingdom Animalia
Elimination Tool:

Trypanosoma belongs to class:

NTS 2011
Biology
Kingdom Protista
Elimination Tool:

Rate of DNA replication by DNA polymerase is

Vocal cords are stretched across

Tails can be regenerated in:

NUMS 2015
Biology
Growth and Development
Elimination Tool:

What is an example of sperms of liverworts, mosses, ferns which move towards archegonia, in response to nucleic acid released by the ovum?

PMC Practice 7
Biology
Kingdom Plantae
Elimination Tool:

Which of the following types of transpiration account for 5 – 7 % of total transpiration that take place in plants?

NUMS 2019 Cancelled
Biology
Homeostasis
Elimination Tool:

Consider the following statements about biological communities.

I. Their members share a common gene pool

II. The community remains stable even though some physical aspect of the environment may undergo a change

III. It consists of all the populations living in a particular area.

IV. A community interacts with a non-living environment and both function together to form an ecosystem

Which two of the above statements are true?

NTS 2014
Biology
Evolution
Elimination Tool:

Neurotransmitters trigger action potential in the postsynaptic neuron by changing the permeability of certain _________.

NUMS 2019 Reconduct
Biology
Coordination and Control
Elimination Tool:

Which substance might include this molecule?

NUMS Mock 4
Biology
Biological Molecules

Which of the following carbohydrate is tasteless?

The chemical nature of an antibody is:

NUMS 2016
Biology
Transport
Elimination Tool:

_____ are more common in human males and females.

NUMS Mock 3
Biology
Variation and Genetics

Enzymes work by lowering the ______ of the reactions they catalyse:

PMC 2020
Biology
Enzymes
Elimination Tool:

Bacteriophages, or phages are also known as:

PMC Sample 2
Biology
Bio-diversity | Variety of Life
Elimination Tool:

In which of the following options is mitotic division involved?

NUMS 2015
Biology
Reproduction
Elimination Tool:

Second major form of hepatitis is:

NUMS 2015
Biology
Bio-diversity | Variety of Life
Elimination Tool: