Indicate whether the following statements are true or false by placing a tick (✓) in the appropriate box in each case - Leaving Cert Biology - Question 6 - 2021
Question 6
Indicate whether the following statements are true or false by placing a tick (✓) in the appropriate box in each case.
(a) Adrenaline is secreted into the blood whe... show full transcript
Worked Solution & Example Answer:Indicate whether the following statements are true or false by placing a tick (✓) in the appropriate box in each case - Leaving Cert Biology - Question 6 - 2021
Step 1
a) Adrenaline is secreted into the blood when experiencing a threat.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
True. When an individual is faced with a threat, the adrenal glands secrete adrenaline (epinephrine) into the bloodstream, which prepares the body for a 'fight or flight' response.
Step 2
b) Plants are producers; however, they still need mitochondria.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
True. While plants are autotrophs and produce their own food through photosynthesis, they also require mitochondria for cellular respiration to convert the energy stored in glucose into usable ATP.
Step 3
c) Neurotransmitters are transported in the blood.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
False. Neurotransmitters are primarily transmitted between neurons at synapses and are not typically circulated through the bloodstream. While some hormones can act similarly, neurotransmitters function locally.
Step 4
d) A potato is a root modified to store food.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
True. Potatoes are tubers, which are thickened modified stems that store starch and nutrients.
Step 5
e) Tissue culture involves growing cells on an artificial medium.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
True. Tissue culture is a technique used to grow cells, tissues, or organs in a controlled environment on artificial nutrient mediums.
Step 6
f) There are four bones in the middle ear.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
True. The middle ear contains three small bones known as the ossicles: the malleus, incus, and stapes. However, if considering the overall structure, the number of bones might be interpreted differently, so it depends on context.
Step 7
g) Monocotyledonous plants are almost always herbaceous.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
True. While there are exceptions, most monocotyledonous plants, such as grasses, are herbaceous and do not develop woody tissue.
Join the Leaving Cert students using SimpleStudy...
