Biology Questions

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1 How many different shapes of bacteria are there?
1 year, 15 days ago, In Biology
2 What part of your body never stops growing?
1 year, 15 days ago, In Biology
3 How does the structure of the stigma aid in pollination?
1 year, 15 days ago, In Biology
4 What is science?
11 months, 23 days ago, In Biology
5 what is science?
11 months, 23 days ago, In Biology
6 what are plants
11 months, 23 days ago, In Biology
7 what are plants
11 months, 23 days ago, In Biology
8 What is the hardest substance in the human body?
11 months, 22 days ago, In Biology
9 Explain the necessity of transport in plants and animals
10 months, 29 days ago, In Biology
10 Describe the structure and function of root hair
10 months, 29 days ago, In Biology
11 State ways in which the root hairs are adapted to their functions
10 months, 29 days ago, In Biology
12 State ways in which the root hairs are adapted to their functions
10 months, 29 days ago, In Biology
13 Give the similarities and differences between a monocotyledonous and dicotyledonous stem
10 months, 29 days ago, In Biology
14 Give the similarities and differences between a monocotyledonous and dicotyledonous stem
10 months, 29 days ago, In Biology
15 State the differences between the internal structure of a root and a stem.
10 months, 29 days ago, In Biology
16 Describe the movement of water from the soil to the leaves of a tall plant
10 months, 29 days ago, In Biology
17 Explain the forces that make water and mineral salts move through a plant
10 months, 29 days ago, In Biology
18 Explain the uptake of mineral salts by plants
10 months, 29 days ago, In Biology
19 What is transpiration?
10 months, 29 days ago, In Biology
20 Explain the structural factors that affect the rate of transpiration in plants
10 months, 29 days ago, In Biology
21 Explain the environmental factors that affect rate of transpiration in plants
10 months, 29 days ago, In Biology
22 Explain how aquatic and terrestrial plants are adapted to deal with problems of transpiration
10 months, 29 days ago, In Biology
23 Describe an experiment you would carry out in order to demonstrate that phloem transports manufactured food substances in a plant
10 months, 29 days ago, In Biology
24 define zology according to biology?
10 months, 22 days ago, In Biology
25 What is ecosystem?
10 months, 16 days ago, In Biology
26 Which form of science dealing with the study of structural and cultural traits of human beings?
10 months, 16 days ago, In Biology
27 Explain the necessity of transport in plants and animals
10 months, 16 days ago, In Biology
28 Describe the structure and function of root hair
10 months, 16 days ago, In Biology
29 Compare the internal structure of a dicotyledonous root and a monocotyledonous root
10 months, 16 days ago, In Biology
30 Which chemical elements make up the majority of living biological matter?
10 months, 16 days ago, In Biology
31 Living organisms are made of organic and inorganic substances. How can each of these substances be classified based on the complexity of their molecules?
10 months, 16 days ago, In Biology
32 What are the most important inorganic molecular substances for living organisms?
10 months, 16 days ago, In Biology
33 What are mineral salts? Where can mineral salts be found in living organisms?
10 months, 16 days ago, In Biology
34 What are the most important organic molecules for living organisms?
10 months, 16 days ago, In Biology
35 What are the main functions of organic molecules in living organisms?
10 months, 16 days ago, In Biology
36 What are some examples of the structural function of organic molecules?
10 months, 16 days ago, In Biology
37 What are some examples of the energetic function of organic molecules?
10 months, 16 days ago, In Biology
38 What are some examples of the control and informative function of organic molecules?
10 months, 16 days ago, In Biology
39 What are biopolymers?
10 months, 16 days ago, In Biology
40 What is the approximate percentage (in mass) of water in the human body? Do you think this percentage is larger in adults or in the elderly?
10 months, 16 days ago, In Biology
41 What are the main biological functions of water?
10 months, 16 days ago, In Biology
42 Water plays a key role in organic reactions. What are examples of two types of organic reactions in which water is either an input or an output?
10 months, 16 days ago, In Biology
43 Is water a polar or a non-polar molecule? What does that mean for water’s function as a solvent?
10 months, 16 days ago, In Biology
44 Which kind of polarity do water-soluble and fat-soluble substances demonstrate?
10 months, 16 days ago, In Biology
45 What is the importance of water for enzyme activity?
10 months, 16 days ago, In Biology
46 Does water have a small or large heat capacity? What is the biological significance of this characteristic?
10 months, 16 days ago, In Biology
47 What are the main properties of water that make it so special for life?
10 months, 16 days ago, In Biology
48 What are ions? What are the two types of molecules into which ions are classified?
10 months, 16 days ago, In Biology
49 What are the main positive ions found in living organisms?
10 months, 16 days ago, In Biology
50 What are the main negative ions found in living organisms?
10 months, 16 days ago, In Biology
51 What is the role of mineral salts in osmotic regulation?
10 months, 16 days ago, In Biology
52 What is the role of mineral salts in the creation of electric tension (voltage) at the cellular level?
10 months, 16 days ago, In Biology
53 Why is pH regulation important for living beings What is the role of mineral salts in this regulation?
10 months, 16 days ago, In Biology
54 What is the role of mineral salts in enzyme activity?
10 months, 16 days ago, In Biology
55 What are the main biological processes in which calcium is involved?
10 months, 16 days ago, In Biology
56 What is hemoglobin? What inorganic element is fundamental in the composition of hemoglobin?
10 months, 16 days ago, In Biology
57 What is the importance of magnesium for plants? What are the other main biological functions of magnesium?
10 months, 16 days ago, In Biology
58 What is phosphorylation? What are some biological processes in which phosphorylation plays a critical role?
10 months, 16 days ago, In Biology
59 Why is iodine important for human beings?
10 months, 16 days ago, In Biology
60 What are the main biological functions in which chloride ions are involved?
10 months, 16 days ago, In Biology
61 What are the organic chemical groups that compose carbohydrates? How are carbohydrates classified according to the presence of those groups?
10 months, 16 days ago, In Biology
62 What is the molecular formula for glucose? How can its structural formula be described?
10 months, 16 days ago, In Biology
63 What are monosaccharides, oligosaccharides and polysaccharides?
10 months, 16 days ago, In Biology
64 What is the difference between monosaccharides and disaccharides? What are some examples of them?
10 months, 16 days ago, In Biology
65 What are catalysts?
10 months, 16 days ago, In Biology
66 What amount of catalyst is consumed in the reaction it catalyzes?
10 months, 16 days ago, In Biology
67 Is there a difference between the initial and the final energy levels in catalyzed and non-catalyzed reactions?
10 months, 16 days ago, In Biology
68 What are enzymes? What is the importance of enzymes for living beings?
10 months, 16 days ago, In Biology
69 What are substrates of enzymatic reactions?
10 months, 16 days ago, In Biology
70 What are the main theoretical models that try to explain the formation of the enzyme-substrate complex?
10 months, 16 days ago, In Biology
71 How does the formation of the enzyme-substrate complex explain the reduction in the activation energy of chemical reactions?
10 months, 16 days ago, In Biology
72 On what structural level of the enzyme (primary, secondary, tertiary or quaternary) does the enzyme-substrate interaction depend?
10 months, 16 days ago, In Biology
73 What is the activation center of an enzyme? Is it the key or the lock in the lock and key model?
10 months, 16 days ago, In Biology
74 Why enzyme action is considered highly specific?
10 months, 16 days ago, In Biology
75 What happens to the functionality of a denatured enzyme? How can that result be explained with the help of the lock and key model?
10 months, 16 days ago, In Biology
76 What are the main factors that alter the speed of enzymatic reactions?
10 months, 16 days ago, In Biology
77 How does substrate concentration affect the speed of enzymatic reactions?
10 months, 16 days ago, In Biology
78 How does temperature affect the action of enzymes on their substrates?
10 months, 16 days ago, In Biology
79 Concerning enzymatic reactions, how different are the curves of the graph of the variation in the speed of a reaction as function of substrate concentration and the graph of the variation in the speed of a reaction as function of temperature?
10 months, 16 days ago, In Biology
80 What is the relationship between the cooling of organs and tissues for medical transplants and the effect of temperature on enzymatic reactions?
10 months, 16 days ago, In Biology
81 Does pH affect enzyme activity?
10 months, 16 days ago, In Biology
82 Do enzymes act better under acidic or alkaline pHs?
10 months, 16 days ago, In Biology
83 Since pepsin is a gastric enzyme, does it have an acidic or alkaline optimum pH? What happens to pepsin when it enters the duodenum?
10 months, 16 days ago, In Biology
84 What are enzyme cofactors?
10 months, 16 days ago, In Biology
85 What is the relationship between vitamins and enzyme cofactors?
10 months, 16 days ago, In Biology
86 In a enzymatic reaction, what is the effect of a substance with the same spatial conformation as the enzyme substrate? How is this type of substance recognized?
10 months, 16 days ago, In Biology
87 What is the mechanism of action of the antibiotic penicillin?
10 months, 16 days ago, In Biology
88 What is the mechanism of action of the antiretroviral drugs called protease inhibitors which are used against HIV infection?
10 months, 16 days ago, In Biology
89 What are allosteric enzymes?
10 months, 16 days ago, In Biology
90 What are zymogens?
10 months, 16 days ago, In Biology
91 define dicotomous key
10 months, 3 days ago, In Biology
92 what is a varicele
8 months, 28 days ago, In Biology
93 what is the use of a course adjustment knob of a microscope ?
7 months, 12 days ago, In Biology
94 what is the use of pectoral fin on a fish according to biology?
7 months, 12 days ago, In Biology
95 what are the features of a head of a housefly?
7 months, 12 days ago, In Biology
96 what are the features of a leg of a housefly?
7 months, 12 days ago, In Biology
97 what is soil erosion
3 months, 7 days ago, In Biology
98 Describe all the Kingdoms of living things with examples
2 months, 6 days ago, In Biology
99 Ordinary table salt is sodium chloride. What is baking soda?
2 months, 6 days ago, In Biology
100 Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to
2 months, 6 days ago, In Biology
101 Pollination is best defined as
2 months, 6 days ago, In Biology
102 Movement of cell against concentration gradient is called
2 months, 6 days ago, In Biology
103 Who is known as father of Zoology
2 months, 6 days ago, In Biology
104 Give 20 signs that shows a girl loves you
2 months, 5 days ago, In Biology
105 what is Biology
1 year, 1 month ago, In Biology
106 Describe the animals and plants cells
1 year, 25 days ago, In Biology
107 Draw a diagram of flower and name the parts and show their functions
1 year, 25 days ago, In Biology
108 Outline the categories of animal kingdom
1 year, 17 days ago, In Biology