Cells, Tissues and Homeostasis - Mammalian Cell Biology, Human Anatomy and Physiology - Biomedical Engineering Previous Year Questions

1

2020 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2020

The thin filament of a muscle fiber is comprised of

A

Troponin, Tropomyosin, Actin

B

Troponin, Tropomyosin, Titin

C

Tropomyosin, Titin, Actin

D

Actin, Myosin, Troponin

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2

2020 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2020

Hydrolysis of one ATP molecule provides an energy of ________ kilo calories (correct up to one decimal place).

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3

2020 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2020

The resting potential of a mammalian nerve cell is –80 mV. A certain drug administered to the body changes the intracellular K⁺ concentration from 150 mmol/L to 55 mmol/L. The nearest value of cell membrane potential after the drug administration, assuming that the external equilibrium of K⁺ does not get changed during the event, is
(Gas constant = 8.315 J/mol/K, core temperature = 37°C and Faraday constant = 96500 C/mol)

A

–117 mV

B

–18.71 mV

C

–53.32 mV

D

–141.30 mV

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4

2020 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2020

During resting state, the voltage outside the cell membrane compared to that inside the membrane is ______. Under such conditions, the intracellular and extracellular regions have ______ and ______ concentrations, respectively.

A

More positive, more Potassium [K⁺], more Sodium [Na⁺]

B

More negative, more Potassium [K⁺], more Sodium [Na⁺]

C

More negative, more Sodium [Na⁺], more Potassium [K⁺]

D

More positive, more Sodium [Na⁺], more Potassium [K⁺]

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5

2021 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2021

The pH of blood in a healthy human is precisely in the range of ______.

A

7.10 – 8.10

B

6.95 – 7.05

C

7.15 – 7.20

D

7.35 – 7.45

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6

2021 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2021

Which of the following is a cranial bone in the human body?

A

Occipital

B

Mandible

C

Coccyx

D

Sternum

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7

2021 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2021

Which of the following statements about smooth muscles are TRUE?

A

Smooth muscles are found in the walls of hollow organs

B

Smooth muscles are controlled by the autonomic nervous system

C

Smooth muscles are made up of non-striated cells

D

Smooth muscles are made up of striated cells

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8

2022 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2022

In a healthy adult, which one of the following regions of the brain contains primarily white matter?

A

Cerebral cortex

B

Basal ganglia

C

Limbic system

D

Corpus callosum

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9

2022 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2022

Which one of the following statements is TRUE?

A

A myelinated axon has a greater ATP requirement than an unmyelinated axon of the same diameter and length

B

An unmyelinated axon has a greater ATP requirement than a myelinated axon of the same diameter and length

C

An unmyelinated axon has the same ATP requirement as a myelinated axon of the same diameter and length

D

An unmyelinated axon always has a greater ATP requirement than a myelinated axon irrespective of their diameter and length

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10

2022 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2022

Assume that the ratio of total blood volume in liters to total body weight in kg is 0.07 and the blood consists of plasma and RBCs only. The plasma volume of a 70-kg man with 52% hematocrit is ______ L (rounded off to two decimal places).

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11

2023 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2023

Which of the following constituents is/are NOT normally found in serum obtained from human blood?

A

Platelets

B

Albumin

C

Glucose

D

Fibrinogen

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12

2023 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2023

In a cell viability experiment, 10,000 cells were cultured in the absence and presence of a compound Q for 24 h. The absorbance of a dye associated with cellular metabolic activity was measured at a wavelength of 570 nm at 24 h. The measured absorbances were 0.8 a.u. in the absence of the compound Q , and 0.5 a.u. in its presence.
If the dye gives an absorbance (at 570 nm) of 0.1 a.u. in the absence of cells, what is the percentage cell growth inhibition caused by the compound Q? (Round off the answer to one decimal place.)

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13

2023 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2023

The intracellular and extracellular concentrations (in mM) of three important ions are given in the table below. The relative permeability of the cell membrane to each ion is provided. Universal gas constant is 8.31 J/(mol.K) and Faraday’s constant is 96500 C/mol.
What is the absolute value of the resting membrane potential (in mV) across the cell membrane at 27 \( ^\circ \)C? (Round off the answer to one decimal place.)

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14

2024 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2024

During the repolarization phase of a neuron, the cell is brought back to the resting potential by the action of a Sodium-Potassium pump. Which one of the following statements is TRUE for the active transport of \(Na^+\) and \(K^+\) ions through the cell membrane?

A

For every 3 \(Na^+\) transported out of the cell 2 \(K^+\) is transported into the cell.

B

For every 3 \(Na^+\) transported into the cell 2 \(K^+\) is transported out of the cell.

C

For every 2 \(Na^+\) transported out of the cell 3 \(K^+\) is transported into the cell.

D

The ratio of \(Na^+\) and \(K^+\) transport is always equal to one.

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15

2024 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2024

Consider the following layers: subcutaneous fat, viable epidermis, stratum corneum, and dermis. Which one of the following represents the correct sequence of the layers from skin surface to within?

A

Dermis, subcutaneous fat, viable epidermis, stratum corneum

B

Dermis, viable epidermis, subcutaneous fat, stratum corneum

C

Stratum corneum, viable epidermis, dermis, subcutaneous fat

D

Viable epidermis, stratum corneum, dermis, subcutaneous fat

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16

2024 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2024

Macrophages that are resident in the liver are ______________.

A

Histiocyte cells

B

Langerhans cells

C

Kupffer cells

D

Fibroblast cells

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17

2024 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2024

During the repolarization phase of a neuron, the cell is brought back to the resting potential by the action of a Sodium-Potassium pump. Which one of the following statements is TRUE for the active transport of Na\(^+\) and K\(^+\) ions through the cell membrane?

A

For every 3 Na\(^+\) transported out of the cell 2 K\(^+\) is transported into the cell.

B

For every 3 Na\(^+\) transported into the cell 2 K\(^+\) is transported out of the cell.

C

For every 2 Na\(^+\) transported out of the cell 3 K\(^+\) is transported into the cell.

D

The ratio of Na\(^+\) and K\(^+\) transport is always equal to one.

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18

2024 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2024

Macrophages that are resident in the liver are ____________.

A

Histiocyte cells

B

Langerhans cells

C

Kupffer cells

D

Fibroblast cells

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19

2024 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2024

Which of the following is/are NOT TRUE about photoreceptor cells in a healthy human retina?

A

The distribution of rod and cone cells is uniform all over the retina.

B

The number of rods are higher than the number of cones in the retina.

C

Rods contain photopsin pigment.

D

Cones are responsible for colour vision in bright light.

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20

2025 · Biomedical Engineering · Mammalian Cell Biology, Human Anatomy and Physiology · Cells, Tissues and Homeostasis

Biomedical Engineering (BM) 2025

Given the following statements, which one of the options is correct?
Statement (i): Histology is the study of histones
Statement (ii): Cytology is the study of tissues

A

Both the statements are correct

B

Both the statements are incorrect

C

Statement (i) is correct; statement (ii) is incorrect

D

Statement (i) is incorrect; statement (ii) is correct

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