Question 1

Which statement regarding the mammalian heart is correct?

Accepted Answer

In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs is correct regarding mammalian heart.

Question 2

ATP is a compound that is synthesized when

Accepted Answer

energy is stored in chemical bonds is released during cellular respiration

Question 3

The outer membrane that covers the lungs

Accepted Answer

The pleura is the membrane that covers the lungs, according to InnerBody. The pleura consists of two layers, with the parietal pleura forming the membrane's outer layer and the visceral pleura forming the membrane's inner layer.

Question 4

Which of the following is part of the axial skeleton?

Accepted Answer

The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate. In the human skeleton, it consists of 80 bones and is composed of six parts; the skull bones, the ossicles of the middle ear, the hyoid bone, the rib cage, sternum and the vertebral column. Bones of shoulder, thigh and foot are the part of appendicular skeleton. Hence, Vertebral column is the part of axial skeleton.

Question 5

A myocardial infarction is a heart attack.

Accepted Answer

TRUE

Question 6

What is the function of reverse transcriptase?

Accepted Answer

A reverse transcriptase (RT) is an enzyme used to generate complementary DNA (cDNA) from an RNA template by a process called Reverse Transcription. In brief its function is that copies all or part of the virus RNA (retroviruses are RNA-only) as DNA which can then be integrated into the DNA of the host organism.

Question 7

In what organelle does cellular respiration take place?

Accepted Answer

Cellular respiration is the multi-step process that creates energy from nutrients and food molecules. It begins in the cytoplasm of the cell, with the mitochondria functioning as the main organelle where the rest of the process continues and finishes. During respiration, glycolysis occurs in the cytoplasm of the cell.

Question 8

Nucleotides are made of a pentose only.

Accepted Answer

DNA is made of nucleotides. And these Nucleotides are made of a pentose sugar deoxyribose, a phosphate, and a nitrogen-containing bases. Hence, the given statement 'Nucleotides are made of a pentose only' is FALSE.

Question 9

What process immediately preceeded protein synthesis at the ribosome?

Accepted Answer

Protein synthesis at the ribosome is immediately preceeded by the transcription process.

Question 10

The sciatic nerve is a combination of which two nerves?

Accepted Answer

The sciatic nerve is a combination of common fibular and tibial. The sciatic nerve divides into its two branches:: 1. The tibial nerve 2. The common fibular nerve at the popliteal fossa. The tibial nerve, which travels down the posterior compartment of the leg into the foot. The common peroneal nerve also called the common fibular nerve, which travels down the anterior and lateral compartments of the leg into the foot.

Question 11

Cells with similar markers stick together and function as

Accepted Answer

A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Hence, Cells with similar markers stick together and function as tissues.

Question 12

Example of a single celled organism

Accepted Answer

Single selled organisms are also known as Unicellular organisms in which they have only one cell. Examples are :: Fungi, Algae, Amaeba, Paramaecium,... Hence, all the above given options are single selled organisms.

Question 13

The process of copying dna is called

Accepted Answer

The process of copying dna is called Replication.

Question 14

Drugs that combat depression work by

Accepted Answer

Antidepressants work by stopping the breakdown of norepinephrine, dopamine, and serotonin They're more difficult for people to take than most other antidepressants because they interact with prescription drugs, nonprescription drugs, and some foods

Question 15

Where does digestion of protein begin?

Accepted Answer

Three main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids. Hence, digestion of protein begin in stomach.

Question 16

Select the correct statement about the ureters.

Accepted Answer

The ureters are capable of peristalsis like that of the gastrointestinal tract.

Question 17

The two purines in DNA are

Accepted Answer

The purines are bases in the DNA. The two purines in DNA are Adenine and Guanine. These two purines forms hydrogen bonds with their complimentary pyrimidines such as Thymine and Cytosine to keep the two rails of the DNA molecule together.

Question 18

Which of the following is true of osmosis?

Accepted Answer

All of the above

Question 19

Where are the proteins of the electron transport chain located?

Accepted Answer

The proteins of the electron transport chain are present in mitochondrial inner membrane in Eukaryotes.

Question 20

The functional unit of the nervous system is the

Accepted Answer

Neurons

Biology Questions