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Worksheets#BioooTrial
Total questions: 64
Worksheet time: 1hrs 4mins
Name the structure.
(a)
This structure can be found in/on the
Nucleus
Plasma membrane
Rough Endoplasmic Reticulum
Mitochondria
Which part is hydrophobic? What is the name of it?
A - Polar head
A - Nonpolar tail
B - Polar head
B - Nonpolar tail
Which cell component is absent in both palisade mesophyll cells and root hair cells?
Vacuole
Centriole
Cell wall
Chloroplast
A cell has NO nucleus. It might be
Erythrocyte
Sperm cell
Leucocyte
Muscle cell
Rough Endoplasmic Reticulum
Plasma Membrane
Smooth Endoplasmic Reticulum
Golgi Apparatus
Ribosome is the site for protein synthesis. Where are they found?
On the surface of plasma membrane
In the cytoplasm
On the surface of rough endoplasmic reticulum
In the nucleus
Which cell component is found in abundance in sperm cells because energy is required for its movement?
Nucleus
Mitochondrion
Golgi apparatus
Ribosome
Choose ONE INCORRECT option.
A is involved in controlled movements
B can be found in the digestive tract
C is skeletal muscle
Muscle cells can have more than one nucleus.
Red blood cell: "Crap! Water's gonna move out of me, I'm gonna shrink!" This cell is placed in?
An isotonic solution
A hypotonic solution
A hypertonic solution
What is the shape of the cell shown?
(a)
What happens when plant cells are placed in a hypotonic solution?
Vacuoles and the cytoplasm will shrink
The cells are turgid
Cells become flaccid
Plant cells burst because the cell wall cannot withstand the osmotic pressure in the cells
Osmosis
Simple diffusion
Facilitated diffusion
Active transport
The rate of simple diffusion across a semi-permeable membrane is NOT affected by
Temperature
Size of molecules
Steepness of concentration gradient
Energy from ATP
Adenosine triphosphate (ATP) is decomposed into adenosine diphosphate (ADP) and phosphate (P) when
Glucose are absorbed into blood capillaries of a villus
Water molecules moves through the phospholipid bilayer
Fat soluble vitamins, i.e. vitamin A, D, E, K are absorbed into lacteals of a villus
Oxygen diffuses from the alveolus into the lung capillaries
Water is known as the universal solvent. The MAIN reason is
Water molecules are polar molecules
Water has a high specific heat capacity
There are hydrogen bonds between water molecules
Water molecule looks like mickey mouse
Name the structure of deoxyribonucleic acid, DNA.
(a)
Monosaccharide
Disaccharide
Polysaccharide
Protein
Condensation
Hydrolysis
Electrolysis
Deamination
Name the type of metabolism
(a)
Which of the following is incorrect about the lock and key hypothesis of enzyme action?
The enzyme’s active site does not completely fit the substrate
The three-dimensional structured enzyme has an active site
The enzyme is represented by a "lock"
Both catabolism and anabolism can occur
The rate of ALL biochemical reactions controlled by enzymes in the human body decreases when
The enzymes are in an acid medium, where the pH value is between 1 and 3.
The concentration of substrate increases
The enzymes are at their optimal temperature, which is 37°C for the human body
When the active site of the enzyme is occupied by inhibitors
Which enzymes are used juice production?
Lactose
Pectinase
Cellulase
Protease
Production of yoghurt is based on
Aerobic respiration
Alcohol fermentation
Lactic acid fermentation
Which statement(s) about glycolysis is CORRECT?
Pyruvate is broken down into carbon dioxide, water, and energy
Occurs in the cytoplasm
No ATP is produced in this process
One glucose molecule is broken down into two pyruvate molecules
Which statement(s) about the open circulatory system and closed circulatory system is correct?
The circulatory system of insects is an open circulatory system
In an open circulatory system, haemolymph is always contained in a continuous closed vessel
The circulatory system of a fish is a closed circulatory system, more specifically a double circulatory system.
Two types of circulation can be found in the human body, i.e. pulmonary circulation and systemic circulation
The first enzyme that is involved in the digestion of white rice is
Pancreatic amylase
Salivary amylase
Maltase
Sucrase
Lactase
Select the correct statement(s) about the digestion system
Bile is produced in gallbladder
Pepsinogen is activated by hydrochloric acid to become pepsin
Emulsion of lipid by bile is considered as chemical digestion
Lipase hydrolyses lipids into fatty acids and glycogen
In the ileum, amino acids are absorbed into blood capillaries through?
Facilitated diffusion
Active transport
Simple diffusion
Osmosis
Which enzyme hydrolyses peptides into amino acids?
Pepsin
Trypsin
Pepsinogen
Erepsin
Choose one incorrect option.
Process A shows that amino acids are broken down through deamination to form urea which is then expelled
Process B shows that amino acids are used to form glucose to be stored in the liver or muscle cells
Process C shows that amino acids are used to synthesis plasma protein and enzymes
Processes A, B, and C occur in the liver
In the defaecation process, the most important food class is fibre because
Fibre stimulates peristalsis
Fibre regulates the absorption of glucose
Fibre increases the population of beneficial bacteria in the large intestine
Fibre absorbs and expels toxic substances
Right ventricle
Right atrium
Left ventricle
Left atrium
Choose the correct option(s).
W: Semilunar valve
X: Tricuspid valve
Y: Bicuspid valve
Z: Semilunar valve
The pulmonary artery transports
oxygenated blood from heart to lungs
oxygenated blood from lungs to heart
deoxygenated blood from heart to lungs
deoxygenated blood from lungs to heart
During heart pumping, the lub-dub sound can be heard. Which explanation is correct?
The lub-dub sound is the closing sound of the heart valves
The first 'lub' sound is produced when the semilunar valves open
The second 'dub' sound is produced when the tricuspid valve and the bicuspid valve close
Which of the following statement is incorrect?
Blood in vessel A has the highest pressure
Vessel B only carries deoxygenated blood
The wall of vessel C is one cell thick
Valves are not required in vessel A
Blood in veins has lower pressure. Which of the following describes why the blood in veins is able to return to the heart?
Contraction of smooth muscles found in the venule and vein walls
Existence of valve prevents the blood from flowing back
Force is produced from the pumping of the heart
The force of gravity increases the rate of blood flow back to the heart
A patient whose blood type is A can receive blood donation from
Blood type A
Blood type B
Blood type AB
Blood type O
Choose ONE CORRECT option about the human lymphatic system.
One-way valves in lymphatic vessels ensure the lymph flows continuously to the entire body
The thoracic duct receives lymph from the right hand, chest and right side of the head and neck
Lymph contains plasma protein, erythrocyte and platelet
Lacteals in the villus of the small intestine are considered as lymphatic capillaries
Antigens are destroyed by antibodies through several methods. One of them is opsonisation, which means
Antibodies coagulate the pathogens to make them an easy target to be trapped and destroyed by phagocytes
Antibodies combine with antigens and directly break down the bacteria
Antibodies react with dissolved antigens to form a precipitate that is easily destroyed by phagocytes
Antibodies combine with antigens and act as a marker for phagocytes to recognise the antigens and destroy them
Injection of vaccine is categorised as
Natural active immunity
Artificial active immunity
Natural passive immunity
Artificial passive immunity
Which of the following is considered the second line of defence of human body？
Histamine is released to stimulate inflammatory response
T lymphocyte attacks cells infected by pathogens
Mucus is secreted in the respiratory tract
Phagocytosis occurs to digest dead cells
The graph shows the concentration of antibody in blood against time. It is about
Breastfeeding
Injection of anti-rabies antiserum
Injection of coronavirus vaccine
Infected by chickenpox
Which of the following is WRONG?
A - Neurotransmitter
B - Synaptic vesicle
C - Synaptic knob
D - Synapse
Lack of antidiurretic hormone (ADH)
Inadequate thyroxine
Excessive growth hormone
Insufficient insulin
Which part of the human brain is the link between nervous system and endocrine system?
Cerebrum
Cerebellum
Medulla Oblongata
Hypothalamus
Pituitary gland
Select the incorrect statement(s) about the regulation of blood sugar levels.
After a meal, rise in blood sugar level stimulates β cells to secrete insulin into blood
Insulin stimulates the conversion of glucose into glycerol
When blood sugar level drops, α cells are stimulated to secrete glucagon into blood
Failure in the production, secretion, and intake of glucagon by target cells can cause diabetes mellitus
Why does this woman need to take a deep breathe after jogging?
Indirectly increase the concentration of CO2 in blood
Directly increase the concentration of glucose in blood
Indirectly increase the concentration of glycogen in blood
Directly increase the concentration of oxygen in blood
Which statement about the regulation of partial pressure of carbon dioxide in the blood is INCORRECT?
During vigorous activity, the partial pressure of carbon dioxide increases due to cellular respiration.
pH value of blood and cerebrospinal fluid increases as the concentration of carbon dioxide increases.
The change of pH value of the fluids is detected by the central chemoreceptor in the medulla oblongata.
Intercostal muscles and diaphgram contract and relax quickly to increase breathing rate.
Vasoconstriction occurs when
Blood pressure drops due to serious bleeding
Blood pressure increases during vigorous activities
Temperature of the environment is too low
Temperature of the environment is too high
In a "fight or flight" situation, the hypothalamus transmits nerve impulses directly to the adrenal medulla. The adrenal medulla cells are stimulated to secrete
Adrenaline only
Noradrenaline only
Both adrenaline and noradrenaline
ADH
The correct sequence of processes in the formation of urine is
Ultrafiltration, reabsorption, secretion
Ultrafiltration, secretion, reabsorption
Reabsorption, ultrafiltration, secretion
Secretion, ultrafiltration, reabsorption
Which substance(s) CAN be found in the distal convoluted tubule of a nephron?
Amino acids
Erythrocytes
Glucose
Urea
Axial skeleton includes
Vertebral column
Scapula
Skull
Clavicle
The first cervical vertebra is the
Atlantis
Axial
Atlas
Antarctica
Don't prank your friends like this because it might injure the _________, causing paralyis of lower body.
Cervical vertebrae
Thoracic vertebrae
Lumbar vertebrae
Caudal vertebrae
Is the spinal cord a part of the axial skeleton?
Yes
No
Osteoporosis is a bone disorder characterised by weak bones that may break easily. The possible factors of this health issue include
Insufficient intake of calcium
Lack of exercise
Excessive intake of phosphorus
Low oestrogen level of women
Which is a lubricant to reduce the friction between the ends of bones?
Capsule
Synovial fluid
Tendon
Cartilage
A plant consists of two types of tissues, which are
Connective tissues
Permanent tissues
Meristematic tissues
Epithelial tissue
Parenchyma tissues, collenchyma tissues, and sclerenchyma tissues are all
Epidermal tissues
Ground tissues
Vascular tissues
Choose the correct option(s)
Xylems are made of dead cells, thus it has NO cytoplasm
Xylems transport water and mineral salt to all parts of a plant
Phloems are made of living cells, but it has NO nucleus
Phloems transport sugars from the leaves to roots and fruits
The apical meristem 顶端分生组织 is the zone of cell growth at the shoot tip and the root tip. Choose the INCORRECT statement.
It consists of three zones: the zone of cell division, the zone of cell elongation, and the zone of cell differentiation.
Meiosis occurs at the zone of cell division.
The fusion of small vacuoles to form a large vacuole, i.e. vacuolation occurs at the zone of cell elongation
Cells differentiate to form permanent tissues at the zone of cell differentiation.
