R4RIN – MCQs, Mock Tests | CSS[FPSC-U.S. Civil Service Commission]-USA [USA] Current Affairs 2021 Set 13

Fructose is

1. milk sugar
2. cereal sugar
3. aldo sugar
4. keto sugar

✅ Correct Answer: 4

Group of tissues doing a particular job

1. organ
2. system
3. organelle
4. individual

✅ Correct Answer: 1

Members of the same species living in the same place at the same time make

1. population
2. ecosystem
3. community
4. trophic level

✅ Correct Answer: 3

Which one is a leukocyte

1. red blood cell
2. plasma cell
3. monocyte
4. all of these

✅ Correct Answer: 3

Which one of the following contain deoxygenated blood

1. pulmonary artery
2. hepatic artery
3. left atrium
4. none of these

✅ Correct Answer: 1

In most plants the food is transported in the form of

1. fructose
2. sucrose
3. starch
4. glucose

✅ Correct Answer: 2

How many molecules of carbon dioxide are formed in one Krebs cycle

1. 2
2. 4
3. 6
4. 1

✅ Correct Answer: 3

Which enzyme digest carbohydrates

1. lipase
2. proteases
3. amylases
4. none of these

✅ Correct Answer: 3

The pancreas produce digestive enzymes and release in the

1. stomach
2. esophagus
3. large intestine
4. small intestine

✅ Correct Answer: 4

Detail study of internal organs at level of tissue with the help of microscope is called

1. histology
2. anatomy
3. physiology
4. embryology

✅ Correct Answer: 1

The exchange of chromosal segments i.e.crossing over occurs during

1. first meiotic division
2. mitotic division
3. second meiotic division
4. none of these

✅ Correct Answer: 1

Many bacteria in our digestive system synthesize vitamins for example vitamin

1. B1
2. B2
3. B12
4. B6

✅ Correct Answer: 3

It is very serious disease of brain which is caused by fungi

1. ring worm
2. meningitis
3. hepatitis
4. none of these

✅ Correct Answer: 2

They are widespread as protective coatings on fruits and leaves

1. cholesterol
2. waxes
3. chitin
4. all of these

✅ Correct Answer: 2

Which from the following are present in the underground parts of the plants and stored food

1. leucoplast
2. chromoplast
3. chloroplast
4. stem

✅ Correct Answer: 1

The simplest amino acid is

1. alanine
2. glycine
3. valine
4. phenylalanine

✅ Correct Answer: 2

Accumulation of lipid molecules in brain cells lead to

1. paralysis
2. oedema
3. mental retardation
4. all of these

✅ Correct Answer: 3

The life and activities of a cell is controlled by

1. cytoplasm
2. nucleus
3. vacuole
4. mitochondria

✅ Correct Answer: 2

Flagella are composed of

1. micro tubules
2. micro filaments
3. intermediate filaments
4. glycoproteins

✅ Correct Answer: 1

Tobacco mosaic virus was crystallized by

1. Pasteur
2. Chamberland
3. Stanely
4. Ivanowski

✅ Correct Answer: 3

Non-enveloped naked viruses are known as

1. prions
2. bacteriophages
3. oncoviruses
4. virions

✅ Correct Answer: 4

Gram +ve bacteria on treatment with crystal violet dye give colour

1. red
2. green
3. purple
4. pink

✅ Correct Answer: 3

Malarial parasite is injected into man as

1. sporozoites
2. merozoites
3. zygote
4. none of these

✅ Correct Answer: 1

The terms procariotique and eucariotique were proposed by

1. Whittaker
2. Chatton
3. Haeckel
4. Margulis and Schwartz

✅ Correct Answer: 2

In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen

1. echinodermata
2. mollusca
3. nematoda
4. arthropoda

✅ Correct Answer: 4

The most common type of asexual reproduction in the fungi is

1. fragmentation
2. spore production
3. budding
4. binary fission

✅ Correct Answer: 2

Outside the thallus of Marchantia there are special structures called

1. stem tuber
2. rhizoids
3. sporangium
4. none of these

✅ Correct Answer: 2

The vascular plants are termed as

1. tracheophytes
2. bryophytes
3. pteridophytes
4. all of these

✅ Correct Answer: 1

In human beings influenza is caused by

1. bacteria
2. protist
3. virus
4. fungi

✅ Correct Answer: 3

Snails belong to

1. gastropods
2. bivalves
3. arthropods
4. platyhelminthes

✅ Correct Answer: 1

Amoeba moves in water with the help of locomotory organs called

1. tube feet
2. cilia
3. pseudopodia
4. flagella

✅ Correct Answer: 3

Liver fluke is parasite in the liver of

1. cattle
2. sheep
3. goat
4. all of these

✅ Correct Answer: 4

In all coelentrates endoderm give rise to

1. nervous system
2. digestive system
3. reproductive system
4. circulatory system

✅ Correct Answer: 2

Higher vascular plants are also called

1. flowering plants
2. seed plants
3. ferns
4. none of these

✅ Correct Answer: 2

The plants which produce embryo but lack vascular tissues and seeds are placed in

1. bryophytes
2. pteridophytes
3. tracheophytes
4. all of these

✅ Correct Answer: 1

Which bone is called beauty bone in women

1. sternum
2. clavicle
3. maxilla
4. radius

✅ Correct Answer: 2

Detachment of myosin head and actin in rigor mortis occurs due to

1. stored ATP in body
2. hypercalcemia
3. autolysis in body
4. hyperactivity of mitochondria

✅ Correct Answer: 3

Release of the ovum from ovary is called

1. fertilization
2. ovulation
3. implantation
4. none of these

✅ Correct Answer: 2

The foetus is protected from the mechanical damage by the

1. cervix
2. vagina
3. uterus
4. amniotic fluid

✅ Correct Answer: 4

Rich source of energy in seimen is

1. glucose
2. fructose
3. lactose
4. sacrose

✅ Correct Answer: 1

Sickle cell anemia was discovered by

1. Vernon Ingram
2. Sanger
3. Miescher
4. none of these

✅ Correct Answer: 1

Earthworm lives in

1. sea water
2. moist soil
3. fresh water
4. none of these

✅ Correct Answer: 2

Kangaroo has an abdominal pouch known as

1. placenta
2. guttural pouch
3. marsupial
4. all of these

✅ Correct Answer: 3

The utilization of the products of digestion is called

1. ingestion
2. absorption
3. assimilation
4. both a and b

✅ Correct Answer: 3

Parabronchi are present in

1. cockroach
2. frog
3. fish
4. birds

✅ Correct Answer: 4

The respiratory problem most common in smokers is

1. tuberculosis
2. emphysema
3. asthma
4. cancer

✅ Correct Answer: 2

Water potential of pure water is

1. zero
2. one
3. negative
4. two

✅ Correct Answer: 1

Bean shaped cells in plants are

1. mesophyll cells
2. xylem cells
3. phloem cells
4. guard cells

✅ Correct Answer: 4

The normal pH of human blood is

1. 6.4
2. 7.0
3. 7.4
4. 7.5

✅ Correct Answer: 3

Shrinkage of protoplast due to exosmosis of water is

1. imbibition
2. plasmolysis
3. deplasmolysis
4. adhesion

✅ Correct Answer: 2