CAIE-biology questions Flashcards
which component of the cytoskeleton allows the movement of cilia?
microtubules
which component of the cytoskeleton allows the attachment of centromeres during metaphase?
microtubules
which component of the cytoskeleton moves the secretory vesicles around the cell?
microtubules
are skeletal muscles able to store glycogen?
yes
which two organelles are responsible for detoxification?
- smooth ER
2.peroxisomes
which enzyme catalyzes the reaction between CO2 and H2O to produce H2CO3?
carbonic anhydrase
which plant hormone is found in plant seeds, and is involved in the growth of monocotyledons?
Gibberellin Hormone
myoglobin structure
3D arrangement of its polypeptide chain // tertiary structure
Pupil dilation, digestion, and acceleration of heartbeat are regulated
by:
The Parasympathetic Nervous System
where are Adrenaline and Noradrenaline secreted?
they are secreted by the adrenal medulla
which 2 organs are considered the central organs of the lymphatic system?
- Thymus
- Bone marrow
what happens during isotonic
contraction of the skeletal muscle fibers?
In the isotonic system, the muscle
shortens against a fixed load.// The length of the sarcomere is shortened.
Which hormones secreted by the adrenal medulla, have the same
effect as sympathetic stimulation to increase the heart rate?
A. Adrenaline and Noradrenaline
B. Acetylcholine and Noradrenaline
C. Epinephrine and Acetylcholine
D. Acetylcholine and Angiotensin
E. Noradrenaline and Progesterone
Adrenaline and Noradrenaline
where are Adrenaline and Noradrenaline produced?
they are secreted by the adrenal medulla
A calorie is the amount of heat needed to raise:
A. 1 gram of water 1 degree Celsius
B. 1 gram of water 1 degree Rankin
C. 1 kilogram of water 1 degree Celsius
D. 1 kilogram of water 1 degree Kelvin
E. 2 grams of water 1 degree Celsius
A calorie is the amount of heat
needed to raise the temperature of 1 g of water at sea level from 14.5 °C to
15.5 °C.
