Question 1

A gland below the bladder and surrounding the urethra?

Accepted Answer

The prostate gland is a walnut-sized structure that is located below the urinary bladder in front of the rectum. The prostate gland contributes additional fluid to the ejaculate. Prostate fluids also help to nourish the sperm. The urethra, which carries the ejaculate to be expelled during orgasm, runs through the center of the prostate gland.

Question 2

Tissue that connects muscle to bone

Accepted Answer

A tendon is a fibrous connective tissue which is Tough, fibrous, cord-like tissue that connects muscle to bone or another structure, such as an eyeball. Tendons help the bone or structure to move.

Question 3

Which stage of cellular respiration produces the most ATP?

Accepted Answer

There are 3 stages in cellular respiration. They are: 1. Glycolysis 2. Kreb's cycle 3. Electron transport chain Here, Glycolysis produces only 2 ATP whereas Kreb's cycle produces no ATP. Electron transport chain of the cellular respiration produces the maximum ATP.

Question 4

Amino acids can be distinguished from one another by

Accepted Answer

Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid. Depending on the nature of the side chain groups, three classes of aminoacids can e distinguished: 1. Amino acids with H ond donor and acceptor groups. Histidine, lysine, aspartic acid, threonine,... 2. Amino acids with donor grups only. Arginine, tryptophan and cysteine. 3. Amino acids with acceptor groups only. Asparagine and glutamine.

Question 5

What part of the body controls balance?

Accepted Answer

Cerebellum

Question 6

Movement of cell against concentration gradient is called

Accepted Answer

The only transport method that can move species against their concentration gradient i.e, from low to high concentration is called Active transport. Facilitated diffusion only moves species down their concentration gradient i.e, from high to low concentration.

Question 7

Bacteria divide by

Accepted Answer

Most bacteria divide by binary fission, a form of cell division in which DNA replication and segregation occur simultaneously. This process involves active partitioning of the single bacterial chromosome and positioning of the site of septation. Bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two replicates. The bacterial cell then elongates and splits into two daughter cells each with identical DNA to the parent cell. Each daughter cell is a clone of the parent cell.

Question 8

Basophils increase in number when parasitic invasion occurs.

Accepted Answer

FALSE. Basophils number will not be increased when parasitic invasion occurs. Basophils are a type of white blood cell. Although they're produced in the bone marrow, they're found in many tissues throughout your body. They're part of your immune system and play a role in its proper function. Basophils appear in many specific kinds of inflammatory reactions, particularly those that cause allergic symptoms. If your basophil level is low, it may be due to a severe allergic reaction. Basophils contain anticoagulant heparin, which prevents blood from clotting too quickly. They also contain the vasodilator histamine, which promotes blood flow to tissues.

Question 9

What is the functional unit of a skeletal muscle called?

Accepted Answer

The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, which are the basic functional units of the skeletal muscle.

Question 10

Which of the following can be a symptom of AIDS?

Accepted Answer

From the aboe given options, only extreme and unexplained tiredness is the symptom of AIDS. The other symptoms of AIDS include: recurring fever, thrush — a thick, whitish coating of the tongue or mouth that's caused by a yeast infection and sometimes accompanied by a sore throat, diarrhea that lasts more than a week, headaches, lightheadedness, and/or dizziness.

Question 11

What are the rungs of the DNA ladder made of?

Accepted Answer

The rungs or the sides of the DNA ladder is made of Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA i.e, A sugar (deoxyribose) and a phosphate.

Question 12

Most absorption of nutrients occurs in the

Accepted Answer

The small intestine is the main area of the GI tract for absorption. The small intestine has three separate sections. Theyare : 1. The duodenum 2. Jejunum and 3. Ileum. Hence, the majority of nutrient absorption occurs in the duodenum and jejunum of small intestine.

Question 13

Which would provide the body with the most energy?

Accepted Answer

Breaking the bonds in a monosaccharide

Question 14

Where does glycolysis take place in Eukaryotic cells?

Accepted Answer

Glycolysis is the first step of cellular respiration. This process breaks down glucose into two pyruvic acids, and produces 2 ATP and 2 NADH. In eukaryotic cells, glycolysis and fermentation reactions occur in the cytoplasm.

Question 15

Nucleotides are attached by bonds between the

Accepted Answer

In DNA, adjacent nucleotides are linked by a phosphodiester bond: a covalent bond is formed between the 5' phosphate group of one nucleotide and the 3'-OH group of another. Hence, in this manner, each strand of DNA has a "backbone" of phosphate-sugar-phosphate-sugar-phosphate.

Question 16

The correct order of events during meiosis is

Accepted Answer

The correct order of events during meiosis is: prophase I, metaphase I, anaphase I, telophase I, cytokinesis, and meiosis II.

Question 17

Gluconeogenesis is a term that describes the synthesis of

Accepted Answer

Gluconeogenesis is a metabolic pathway that leads to the synthesis of glucose from pyruvate and other non-carbohydrate precursors, even in non-photosynthetic organisms It occurs in all microorganisms, fungi, plants and animals, and the reactions are essentially the same, leading to the synthesis of one glucose molecule from two pyruvate molecules Therefore, it is in essence glycolysis in reverse, which instead goes from glucose to pyruvate, and shares seven enzymes with it

Question 18

What happens during the process of translation?

Accepted Answer

Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins. In short, during the process of translation source language text is conveyed to destination language.

Question 19

Secondary consumers are eaten by larger

Accepted Answer

A tertiary consumer is an animal that obtains its nutrition by eating primary consumers and secondary consumers. Usually tertiary consumers are carnivorous predators, although they may also be omnivores, which are animals that feed on both meat and plant material. Tertiary consumers often occupy the top trophic level, and so are predated by no other animals; in this case they are called "apex predators". However, when they die their bodies will be consumed by scavengers and decomposers.

Question 20

Spongy, porous bone tissue is also called

Accepted Answer

Spongy, porous bone tissue is also called cancellous bone. Cancellous bone is found in bones that aren't generally under significant stress like in the shoulder blades, ribs, parts of the skull, and at the ends of long bones.

Biology Questions