Indicate whether each of the following statements isTrue or False

1 / RNA is not found in ribosomes. / False
2 / HIV/AIDS has orphaned many children in sub-Saharan Africa. / True
3 / Single-celled organisms use mitosis for reproduction. / True
4 / Immobilised enzymes can act as catalysts. / True
5 / All vitamins are fat soluble. / False
6 / The growth response of a plant to light is phototropism. / True
7 / The liver produces bile. / True
8 / Humans receive oxygen from air they inhale. / True
9 / Light is essential for the germination of seeds. / False
10 / The cells produced by meiosis are haploid. / True
11 / Cloned individuals are exactly the same. / True
12 / A sperm contains the diploid number of chromosomes. / False
13 / Chromosomes are made of DNA and lipid. / False
14 / Vaccination gives rise to active immunity. / True
15 / Meiosis gives rise to variation. / True
16 / Food chains are usually short. / True
17 / Lactic acid is a product of anaerobic respiration. / True
18 / Organisms of the same species usually produce fertile offspring. / True
19 / All individuals within a species are the same. / False
20 / Chloroplasts contain DNA. / True
21 / Enzymes are essential for metabolism. / True
22 / Red blood cells have no nucleus. / True
23 / The pacemaker is on the left side of the heart. / False
24 / Motor neurons conduct impulses away from the CNS. / True
25 / The growth response of a plant to chemicals is geotropism. / False
26 / Monocotyledonous plants have parallel leaf veins. / True
27 / Lenses closest to the stage are the eyepiece lenses. / False
28 / Plant cell walls are fully permeable. / True
29 / A polysaccharide contains many sugar units. / True
30 / Meiosis is never involved in gamete formation. / False
31 / Iodine turns starch to a blue-black colour. / True
32 / Carbon dioxide is produced during respiration. / True
33 / Immobilised enzymes cannot act as catalysts. / False
34 / Bones are joined to other bones by ligaments. / True
35 / Stage 2 of respiration takes place in the cytoplasm. / False
36 / The cells produced by mitosis are identical. / True
37 / DNA is a double helical shape. / True
38 / Aerobic respiration is the release of energy in the absence of oxygen. / False
39 / Eggs are a good source of fat in the diet. / True
40 / Chromosomes are found in the nucleus. / True
41 / Stage 1 of respiration requires oxygen. / False
42 / The remaining natural ecosystems are ones for which we have no use. / True
43 / The base Uracil is found in DNA. / False
44 / Herbivores normally live long lives. / False
45 / Stage 1 of respiration takes place in the cytoplasm. / True
46 / Lipids are made of amino acids. / False
47 / Mitosis divides a nucleus into two identical nuclei. / True
48 / Some energy released in respiration is lost as heat. / True
49 / Osmosis is responsible for uptake of minerals. / False
50 / The products of vegetative propagation are clones. / True
51 / Urea is formed in the kidneys. / False
52 / Cell membranes are semipermeable. / True
53 / Animal cells do not have membranes. / False
54 / Enzymes are not essential for metabolism. / False
55 / Phloem transports water in plants. / False
56 / A potato is a modified stem. / True
57 / A motor neuron carries impulses to the brain. / False
58 / Glucose is a monosaccharide. / True
59 / Lenticels serve the same function as stomata. / True
60 / Mitosis always produces four new cells. / False
61 / Nitrogen is a trace element. / False
62 / Plant cells have chloroplasts. / True
63 / Tendons attach bone to bone. / False
64 / Endosperm is a food reserve in some seeds. / True
65 / Intraspecies competition is more intense than interspecies competition. / True
66 / The liver produces bile. / True
67 / Metabolism is the sum of all the chemical reactions in the body. / True
68 / Anabolism is the breaking down of large molecules. / False
69 / Nutrition is the way living organisms get rid of waste. / False
70 / The term abiotic refers to the living factors in an ecosystem. / True
71 / In science, a hypothesis is an educated guess based on observations. / True
72 / In experiments the factor that is changed is called the variable. / True
73 / Grazing food chains begin with animals. / False
74 / Alleles are different forms of the same gene. / True
75 / Chromosomes are made up of DNA and protein. / True
76 / A human sperm cell contains 23 chromosomes. / True
77 / Phenotype is the genetic make-up of an organism. / False
78 / Replication is the copying of DNA. / True
79 / RNA contains the base thymine. / False
80 / Genetic engineering is the manipulation and alteration of genes. / True
81 / The copying of the DNA code into mRNA is called transcription. / True
82 / Single-celled organisms use meiosis for asexual reproduction. / False
83 / In telophase of mitosis, a cleavage furrow forms in plant cells. / True
84 / When a cell is not dividing it is said to be in prophase. / False
85 / The nuclear membrane disappears in the early part of mitosis. / True
86 / Centromeres give rise to the nuclear spindle. / True
87 / Mitosis is a source of variation. / False
88 / In multicellular organisms mitosis is primarily used for growth. / True