Exams & Certification

We know that earth is almost spherical in shape but when we move on earth it appears as flat. The reason behind this fact is “the larger the circle the smaller would be the curvature”. Prove this fact. The correct answer and explanation is : To prove that “the larger the circle, the smaller the […]

What is the disadvantage of glycolysis? The correct answer and explanation is : Disadvantage of Glycolysis One major disadvantage of glycolysis is that it is inefficient in energy production compared to aerobic respiration. Glycolysis produces only 2 ATP molecules per glucose molecule, whereas aerobic respiration can generate up to 38 ATP molecules per glucose. Explanation

How does pyruvate enter the mitochondrion? A) active transport B) diffusion C) facilitated diffusion D) through a channel E ) through a pore The correct answer and explanation is : The correct answer is: A) Active transport Explanation: Pyruvate, the end product of glycolysis, must enter the mitochondrion for further metabolism in the citric acid

 If the level of ATP gets too high in the cell the enzymes that catalyze the reactions of glycolysis are inhibited a) Explain why this feedback loop is beneficial for the cell. b) What will happen to the ATP level ir glycolysis is inhibited? c) What do you think will happen when the ATP level

What is the purpose of the electron acceptor, NAD”? The correct answer and explanation is : Purpose of the Electron Acceptor, NAD⁺ Nicotinamide adenine dinucleotide (NAD⁺) functions as an essential electron acceptor in cellular respiration and other metabolic pathways. Its primary role is to facilitate redox reactions by accepting and transferring electrons, enabling energy production

Does the net gain of ATP in glycolysis differ when glycogen, rather than glucose, is the starting material? If so, what is the change? The correct answer and explanation is : Yes, the net gain of ATP in glycolysis differs when glycogen is the starting material instead of glucose. Change in ATP Yield Explanation Glycogen

List two functions of the pharynx in tunicates. The correct answer and explanation is : Two Functions of the Pharynx in Tunicates: Explanation: Tunicates, also known as sea squirts, are marine invertebrates belonging to the subphylum Urochordata. They have a specialized structure called the pharyngeal basket, which is a perforated and ciliated pharynx that performs

If D1 = $1.25, g (which is constant) = 4.7%, and P0 = $26.00, what is the stock’s expected dividend yield for the coming year? The correct answer and explanation is : The dividend yield is calculated as: [\text{Dividend Yield} = \frac{D_1}{P_0}] where: [\text{Dividend Yield} = \frac{1.25}{26.00} = 0.0481 \text{ or } 4.81\%] Explanation: The

What structures common to all chordates do adult tunicates possess? Why are tunicates considered chordates? The correct answer and explanation is : Answer: Adult tunicates possess pharyngeal slits as the only chordate structure. Explanation: Tunicates, also known as urochordates, are marine invertebrates that belong to the phylum Chordata. Although they undergo significant morphological changes during

Distinguish between backwash effects and spread effects. Are these the same as vicious circles and virtuous circles? How do these two ideas of Myrdal’s relate to the concept of cumulative causation? The correct answer and explanation is: Backwash Effects vs. Spread Effects Backwash effects and spread effects are concepts introduced by Swedish economist Gunnar Myrdal