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WorksheetsEndterm_ Gen Bio1_12STEM2502_ long quiz
Total questions: 30
Worksheet time: 15mins
What type of biomolecule is an enzyme?
CARBOHYDRATES
PROTEINS
LIPIDS
NUCLEIC ACID
1What is the process called when a protein loses its functional shape due to changes in temperature or pH?
Denaturation
Hydrolysis
Dehydration Synthesis
Phosphorylation
What is the primary structure of a protein?
Its three-dimensional shape
The interaction between multiple polypeptide chains
The folding pattern of the polypeptide chain
The sequence of amino acids
Which enzyme specifically breaks the glycosidic bond in amylose found in starch?
CELLULOSE
PEPTIDE BOND
AMYLASE
DENATURATION
The primary structure of a protein is determined by its sequence of nucleotides.
TRUE, The primary structure of a protein is determined by its sequence of nucleotides.
FALSE, Nucleotides are the building blocks of nucleic acids like DNA and RNA.
TRUE, The secondary structure of a protein is formed by hydrogen bonds between the backbone atoms in the polypeptide chain.
False, the tprimary structure of a protein is determined by interactions between the side chains
Which lipid component is crucial in maintaining the fluidity of cell membranes in animal cells?
Cholesterol
Glycolipids
Triacylglycerol
Lipoproteins
Why does drinking enough glasses of water important for metabolism?
Water molecule is used to break the bond to ATP to release energy
Water hydrates the arteries and veins
Water allows the entry of hydrogen molecules to the membranes
water effectively delivers the ATP to their places like the muscles
This refers to any reaction that break down complex molecules into a smaller molecules.
Anabolism
Carboxylation
Phosphorylation
Catabolism
ATP is composed of three phosphate group and Adenine, what connects this two molecules?
Ribose sugar
Polysaccharides
Glucose
Peptide bonds
What type of bond holds the secondary structure of a protein, such as alpha helices and beta-sheets, together?
Ionic bond
Peptide Bond
Disulfide bond
Hydrogen bond
What is the process called when a protein loses its functional shape due to changes in temperature or pH?
Hydrolysis
Denaturation
Phosphorylation
Photolysis
He did an experiment in a willow tree and found out the plants grow due to water uptake of plant.
Jan Bapista van Helmont
Joseph Priestly
Jan Ingenhousz
Jendrassik and Lohmann
This is a process of breaking down molecules of lactose into galactose and glucose.
Denaturation
Dehydration Synthesis
Hydrolysis
Photolysis
Caterpillars has an enzyme that can digest cellulose present in plants, what do you call this?
Amylose
Lipase
Cellulase
ATP Synthase
Complete the equation for photosynthesis.
P680
CO2
H20
O2
Where in the chloroplast do the light-dependent reactions take place?
Lumen
Thylakoid
Chlorophyll
Stroma
What is the primary role of Photosystem II in the light-dependent reactions?
(the immediate by product of light reaction)
ATP synthesis
carbon dioxide fixation
NADPH production
Water splitting and oxygen
release
As the electron moves from the ETC it looses energy. To store the energy of excited electrons it pump Hydrogen ions from ___________ and into ___________
outside the cell to stroma
Stroma to thylakoid space
Thylakoid space to Stroma
intermembrane compartment to chlorophyll
What type of vascular tissues allow the movement of water molecules from the roots through the leaf of plants?
Xylem
Phloem
Capillary tube
Root vein
What part of the leaf allows the entry of Carbon dioxide and exit of water molecules and oxygen
Stroma
Stomata
Mesophyll
Phloem
True pr False: Oxygen is produces as a by product during the light dependent reaction of photosynthesis
False, Oxygen is produced as a by-product during the Calvin Cycle.
True, because it is produced during photolysis
False, Oxygen is produced directly from the splitting of carbon dioxide molecules.
True, Oxygen production occurs in the stroma of the chloroplast.
What do you call the process of adding another Phosphate to Ru5P to convert it to RuBP?
Carboxylation
Phosphorylation
Photophosphorylation
Photolysis
True or False: Carbon dioxide is the primary input for the light-independent reactions in photosynthesis.
False, Carbon dioxide is not necessary for the light-independent reactions in photosynthesis
False, The light-independent reactions can proceed without any carbon dioxide.
True, Carbon dioxide is only involved in the light-dependent reactions.
True, carbon dioxide together with ATP and NADPH is needed to form glucose
What do you call the characteristics of a phospholipid that contains both hydrophilic and hydrophobic components?
Apoptosis
Catalitic
Amphipathic
Semi - permeable
The flexibility of the plasma membrane is mainly due to which component that prevents tight packing of phospholipids?
Carbohydrate Chain
Cholesterols
Saturated fatty Acids
Protein Channel
A cell in a hypertonic solution will most likely:
Gain Water and Burst
Lose water and shrink
remain unchanged
absorbs solutes rapidly
Which protein structure is responsible for cell recognition such as determining blood type?
glycoproteins
glycogens
channel proteins
enzymes
Which enzyme is responsible for breaking down hydrogen peroxide?
protease
catalase
lipase
amylase
which transport mechanism allows hormones to be secreted from a cell?
phagocytosis
exocytosis
pinocytosis
endocytosis
Which of the following is least likely to pass through the lipid bilayer without assistance?
oxygen
carbon dioxide
glucose
small lipids
